硅锰合金的牌号和化学成分
牌号及化学成分
一、结构钢牌号及化学成分 1、普通碳素结构钢牌号及化学成分: 执行标准 牌号 Q195 Q215A Q315B Q235A GB700-1988 Q335B Q235C Q235D Q255A Q255B Q275 2、优质碳素结构钢牌号及化学成分: 执行标准 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 GB/T699 牌号 08F 10F 15F 8 10 15 20 25 30 35 40 45 50 55 60 65 C 0.05~0.11 0.07~0.13 0.12~0.18 0.05~0.11 0.07~0.13 0.12~0.18 0.17~0.23 0.22~0.29 0.27~0.34 0.32~0.39 0.37~0.44 0.42~0.50 0.47~0.55 0.52~0.60 0.57~0.65 0.62~0.70 Si ≤0.03 ≤0.07 ≤0.07 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 化学成分(%) C Si 0.06~0.12 0.12~0.30 0.09~0.15 0.12~0.30 0.09~0.15 0.12~0.30 0.14~0.22 0.12~0.30 0.12~0.20 0.12~0.30 ≤0.18 ≤0.17 0.12~0.30 0.12~0.30 Mn 0.25~0.50 0.25~0.55 0.25~0.55 0.30~0.65 0.30~0.70 0.35~0.80 0.35~0.80 0.40~0.70 0.40~0.70 0.5~0.80 化学成分(%) Mn 0.25~0.50 0.25~0.50 0.25~0.50 0.35~0.65 0.35~0.65 0.35~0.65 0.35~0.65 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 P 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 S 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 Cr 0.1 0.15 0.25 0.1 0.15 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Ni 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Cu 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 P ≤0.045 ≤0.045 ≤0.045 ≤0.045 ≤0.045 ≤0.040 ≤0.030 ≤0.045 ≤0.045 ≤0.045 S ≤0.050 ≤0.050 ≤0.045 ≤0.050 ≤0.045 ≤0.040 ≤0.030 ≤0.050 ≤0.045 ≤0.050
炼钢金属原料的种类及对铁水、废钢、铁合金的要求
【本章学习要点】本章学习炼钢金属原料的种类及对铁水、废钢、铁合金的要求,常用的铁合金的作用,非金属料的种类、作用及其要求。
原材料的质量和供应条件直接影响炼钢的技术经济指标。
保证原材料的质量,既指保证原材料化学成分和物理性质满足技术要求,还指原材料化学成分和物理性质保持稳定,这是达到优质、高产、低耗的前提条件。
炼钢原材料可分为金属料和非金属料两大类。
第一节金属料炼钢用的金属料主要有铁水、废钢、生铁、原料纯铁、海绵铁、中间合金材料和铁合金。
一、铁水铁水是转炉炼钢最主要的金属料,一般占转炉金属料70%以上。
铁水的成分、温度是否适当和稳定,对简化、稳定转炉操作,保证冶炼顺行以及获得良好的技术经济指标都十分重要。
转炉炼钢对铁水有如下要求:1)温度:温度是铁水带入炉内物理热多少的标志,是转炉炼钢热量的重要来源之一。
铁水温度过低,将造成炉内热量不足,影响熔池升温和元素的氧化过程,不利于化渣和去除杂质,还容易导致喷溅。
一般要求入炉铁水温度不低于l250℃,而且要稳定。
2) 硅:铁水中硅的氧化能放出大量的热量,生成的Si02是渣中主要的酸性成分,是影响熔渣碱度和石灰消耗量的关键因素。
铁水含硅高,则转炉可以多加废钢、矿石,提高钢水收得率,但铁水含硅量过高,会因石灰消耗量的增大而使渣量过大,易产生喷溅并加剧对炉衬的侵蚀,影响石灰熔化,从而影响脱磷、脱硫。
如果铁水含硅量过低,则不易成渣,对脱磷、脱硫也不利。
因此,要求铁水含硅质量分数在0.2%~0.6%。
3)锰:锰是钢中有益元素,对化渣、脱硫以及提高炉龄都是有益的。
但冶炼高锰生铁将使高炉焦比升高,为了节约锰矿资源和降低炼铁焦比,一般采用低锰铁水,锰质量分数为0.2%~0.4%。
4)磷:磷是一个强发热元素。
一般讲磷是有害元素,但高炉冶炼中无法去除磷。
因此,只能要求进入转炉的铁水含磷量尽量稳定,且铁水含磷越低越好。
5)硫:硫也是有害元素。
炼钢过程虽然可以去硫,但会降低炉子生产率,增加原材料消耗。
锰硅合金生产工艺_0
锰硅合金生产工艺一、技术要求执行GB/T4008-96标准,其化学成份见表一。
表一:锰硅合金牌号及化学成分通常生产FeMn68Si18的牌号,根据用户需求生产其它牌号的锰硅合金和含P <0.1%的低磷硅锰,S<0.03%的低硫硅锰,合金表面和断面均不得带有非金属杂质。
二、冶炼原理以焦炭作还原剂,在高温电热状态下(1500。
C以上)还原矿石中的氧化锰、二氧化硅、氧化铁并按一定比例形成锰硅合金。
最终反应方程式为MnxOy+yC=xMn+yCO↑ SiO2+2C=Si+2CO↑ FexOy+yC=xFe+yCO↑冶炼中还带入一部分其它有害元素,如磷、碳、硫等,应在原料中加以控制。
冶炼中还存在未还原物质,如氧化锰、二氧化硅等,要加入石灰石或白云石与此反应形成炉渣。
炉渣碱度应控制在0.6~0.8之间。
三、入炉原料技术要求冶炼锰硅合金的原料有:锰矿石、富锰渣、硅石、熔剂(白云石或石灰),入炉原料技术要求如下:1、锰矿石1.1 Mn>30%,Mn/Fe 6~8,P/Mn<0.002。
1.2 粒度5~80mm,水份≤6% (巴西矿、加蓬矿除外)。
2、焦炭2.1 冶金焦:固定炭≥80%,灰份≤10%,粒度5~20mm。
2.2 煤气焦:固定炭≥80%,灰份≤10%,粒度5~20mm。
2.3 硅石:SiO2≥97%,Al2O3≤1.5%,P2O5≤0.02%,粒度10~40mm。
2.4 熔剂(白云石):CaO+MgO≥50%,粒度5~40mm。
四、配料1、配料准备1.1 收料人同应将当天的进料情况向工艺人员通报,并按工艺人员要求进行原料准备。
1.2 需破碎加工的原料按上述技术要求加工后送入指定料位,并通知配料人员。
2、配料计算(见附录)3、配料操作3.1 原料配比由车间工艺负责人决定。
3.2 配料前必须弄清原料的配比数量、存放仓位、每批料0。
75吨锰矿石为基础,按配比准确称量,并作好记录,各种料的配料误差不超过2kg。
31500KVA硅锰炉生产工艺、质量标准
31500KV A硅锰炉生产工艺操作规程1.总则1.1产品1.1.1名称、符号硅锰合金:M nSi1.1.2.用途:主要用于做炼钢脱氧剂和合金的和添加剂,生产中低碳硅铁的原料。
1.1.3产品质量标准:注:①硅锰合金以块状或粒状交货,其粒度范围及允许偏差符合下表规定。
②硅锰合金呈块状交货,每块不得超过20Kg,粒度小于20mm的数量不超过总量的8%.③硅锰合金的内部及表面不得带有明显非金属杂物。
1.2主要原材料标准:1.2.1.锰矿石:1.2.1.1.粒度:10-80,小于10 mm粉矿不大于10%。
1.2.1.2.堆放:硅矿进厂后按不同种类、不同品位分别堆放,不得混杂,更不得混入泥土等其它有害杂物。
1.2.2.焦炭:冶金焦,固定碳不小于80%,粒度10-28mm,小于10 mm的不大于10%。
1.2.3.硅石:Sio2≥98%/Ae2o3≤0.5%/Cao≤0.20%/P2O5≤0.02%、粒度20-40mm,小于20mm不大于10%,大于40mm不大于8%,不得带入泥土和杂物。
1.2.4.白云石:Cao≥30%Mgo≥19%Sio2≤3.5%粒度20-40mm.1.2.5.其它:凡进厂的各种原料,入炉前必须有化验结果。
1.3生产工艺流程图:硅石锰矿焦炭白云石硅石萤石↓破碎↓筛分↓料仓↓配料↓冶炼↓渣厂→炉渣→铁水包→扒渣浇注→分析→脱模→入库1.4主要冶金原理及化学反应方程式:1.4.10锰的高价氧化物受热分解或被CO还原:2Mno=Mn2o3+o2 570℃3Mn2o3=2Mn3o4+o2 900℃Mn3o4+CO=3Mno+CO21.4.2.Mno、Feo 、p2o5、Sio2、被碳还原:Mno+C=Mn+CO↑ 1420℃Mno+4/3C=1/3Mn3C+CO↑ 1220℃FeO+C=Fe+CO↑Sio2+2C=Si+2CO↑ MnSi14 1475℃MnSi17 1490℃P2O5+5C=2p+5CO↑1.4.3炉内总反应式及高硅排碳:.MnSiO3+3C=MnSi+3CO↑3MnSiO3+4C=Mn3C+3SiO2+3CO↑SiO2+2C=Si+2CO↑Mn3C+3Si=3MnSi+C2.工艺技术操作规程:2.1.原料工序技术操作规程:2.1.1.生产前准备工作:①各种原材料加工成合格的料,并加到贮料仓中。
镍硅锰合金牌号
镍硅锰合金牌号镍硅锰合金是一种用途广泛的合金材料,具有优异的性能和应用前景。
它是由镍、硅和锰等元素组成,通过适当的配比和熔炼工艺制备而得。
镍硅锰合金的牌号种类繁多,下面将介绍几种常见的牌号。
首先是Nimonic合金系列,Nimonic合金是一种高温合金,具有良好的耐热、耐氧化和抗蠕变性能,适用于高温和有腐蚀性环境下的工作条件。
常见的Nimonic合金包括Nimonic 75、Nimonic 80A、Nimonic 90等。
其次是Inconel合金系列,Inconel合金是一种耐腐蚀合金,具有优异的耐高温、耐腐蚀和抗氧化性能,广泛应用于化工、石油、航空航天等领域。
常见的Inconel合金包括Inconel 600、Inconel 625、Inconel 718等。
此外,还有Hastelloy合金系列,Hastelloy合金是一种高合金耐蚀材料,广泛应用于化工、石油、航空航天等领域。
常见的Hastelloy 合金包括Hastelloy C-276、Hastelloy B-3、Hastelloy C-22等。
另外,还有Haynes合金系列,Haynes合金是一种具有高温、抗腐蚀性能的合金材料,广泛应用于航空航天、石油、化工等领域。
常见的Haynes合金包括Haynes 25、Haynes 230、Haynes 188等。
此外,还有一些其他牌号的镍硅锰合金,如Carpenter 20、Monel R-405、RA333等。
每种牌号的合金都具有不同的组成和性能特点,可根据具体使用条件和要求进行选择。
镍硅锰合金具有许多优异的性能。
首先,它具有良好的耐腐蚀性能,可以在酸性、碱性和盐溶液中长期稳定地工作,不易生锈和腐蚀。
其次,它具有优异的耐高温性能,可以在高温下长期稳定地工作,不易变形和熔化。
此外,镍硅锰合金还具有良好的机械性能,具有较高的强度和韧性,可以承受较大的载荷和应力。
镍硅锰合金具有广泛的应用前景。
在航空航天领域,它可以用于制造高温发动机、涡轮叶片、喷嘴等零部件。
硅铝锰铁合金 牌号
硅铝锰铁合金牌号
有许多不同的硅铝锰铁合金牌号,这些牌号通常以其化学成分和性能特点命名。
以下是一些常见的硅铝锰铁合金牌号:
1. FeSiAlMn(硅铝锰铁):这是最常见的硅铝锰铁合金牌号,其含有硅(Si)、铝(Al)、锰(Mn)和铁(Fe)。
它可以用于钢铁制造、冶金、铸造等领域。
2. FeSiAlMnCa(硅铝锰铁钙):这是在硅铝锰铁中添加了钙(Ca)的合金。
钙的加入可以降低合金的熔点和粘度,提高流动性,适用于脱氧剂和合金添加剂。
3. FeSiMn(硅锰铁):这是一种只含有硅和锰的合金,常用于钢铁生产中作为脱氧剂和合金添加剂。
它具有良好的抗氧化性和脱氧效果。
4. FeSiAl(硅铝铁):这是一种硅和铝的合金,通常用作脱氧剂和合金添加剂。
它能够有效地去除钢中的氧气,并提高钢的韧性和强度。
需要注意的是,不同厂家和地区可能会使用不同的牌号命名方式,上述仅为常见的几个例子。
在具体应用中,最好参考相应的标准和规范以获取准确的合金牌号信息。
硅锰合金用途
硅锰合金用途1. 硅锰合金的基本概念硅锰合金是一种用于钢铁生产的合金材料,其主要成分为锰和硅。
硅锰合金的锰含量达到65%以上,硅含量在15%-20%之间,其余成分包括碳、磷、硫、铁等元素。
硅锰合金具有抗氧化、耐磨、耐高温、硬度高、延展性强等优点,广泛应用于钢铁、铸造、化工等领域。
2. 硅锰合金的制备方法硅锰合金的制备方法主要有两种:电炉法和炉外法。
其中,电炉法是最常用的一种方法。
电炉法将锰矿、石英、木炭等原材料混合后,放入电炉内加热熔融,然后加入硅、石墨等原材料,合金冷却后即可得到硅锰合金。
炉外法则是直接将硅铁和重晶石等原材料放入高炉冶炼时,从冶炼过程中收集而得。
3. 硅锰合金的应用领域硅锰合金被广泛应用于钢铁生产行业中。
在冶金行业中,硅锰合金的主要用途是作为脱氧、剂、合金添加剂等,用于调节钢铁中的成分比例和性质以提高钢质的品质,同时可增强钢的抗腐蚀和机械性能。
此外,硅锰合金还广泛用于镁铝合金、铁合金等制造行业作为添加剂和催化剂等。
在钢铁生产的过程中,硅锰合金还可以用于增加钢的硬度和塑性、防锈、防腐等性能。
同时,在铸造中,硅锰合金可以用于改善铸件的表面光洁度和抗氧化性能,提高铸件的质量和使用寿命。
4. 硅锰合金的特点和优势硅锰合金具有众多优点和特点。
一方面,硅锰合金的成分均匀、粒度小、硬度高、延展性好,能够在钢铁生产的过程中更好的扩散和反应,以达到更高的添加效果;另一方面,硅锰合金的抗氧化性能强、耐磨性能好,能够在高温下保持稳定性能,有利于钢铁生产的高效、稳定和优质。
5. 硅锰合金的市场前景随着我国钢铁行业的不断发展壮大,硅锰合金的应用范围将越来越广泛。
据预测,未来硅锰合金市场的需求将会持续增长。
同时,由于环保压力的不断增大,对钢铁生产过程中的废气净化和治理要求越来越高,硅锰合金具有良好的环保性能,因此其在钢铁行业中将拥有更广阔的应用前景。
钢牌号与对应化学成分
1、普通碳素结构钢牌号及化学成分:C Si Mn P S Q1950.06~0.120.12~0.300.25~0.50≤0.045≤0.050Q215A 0.09~0.150.12~0.300.25~0.55≤0.045≤0.050Q315B 0.09~0.150.12~0.300.25~0.55≤0.045≤0.045Q235A0.14~0.220.12~0.300.30~0.65≤0.045≤0.050Q335B 0.12~0.200.12~0.300.30~0.70≤0.045≤0.045Q235C ≤0.180.12~0.300.35~0.80≤0.040≤0.040Q235D ≤0.170.12~0.300.35~0.80≤0.030≤0.030Q255A 0.18~0.280.12~0.300.40~0.70≤0.045≤0.050Q255B 0.18~0.280.12~0.300.40~0.70≤0.045≤0.045Q2750.28~0.380.15~0.350.5~0.80≤0.045≤0.050CSi Mn P S Cr Ni Cu GB/T69908F 0.05~0.11≤0.030.25~0.500.0350.0350.10.30.25GB/T69910F 0.07~0.13≤0.070.25~0.500.0350.0350.150.30.25GB/T69915F 0.12~0.18≤0.070.25~0.500.0350.0350.250.30.25GB/T69980.05~0.110.17~0.370.35~0.650.0350.0350.10.30.25GB/T699100.07~0.130.17~0.370.35~0.650.0350.0350.150.30.25GB/T699150.12~0.180.17~0.370.35~0.650.0350.0350.250.30.25GB/T699200.17~0.230.17~0.370.35~0.650.0350.0350.250.30.25GB/T699250.22~0.290.17~0.370.50~0.800.0350.0350.250.30.25GB/T699300.27~0.340.17~0.370.50~0.800.0350.0350.250.30.25GB/T699350.32~0.390.17~0.370.50~0.800.0350.0350.250.30.25GB/T699400.37~0.440.17~0.370.50~0.800.0350.0350.250.30.25GB/T699450.42~0.500.17~0.370.50~0.800.0350.0350.250.30.25GB/T699500.47~0.550.17~0.370.50~0.800.0350.0350.250.30.25GB/T699550.52~0.600.17~0.370.50~0.800.0350.0350.250.30.25GB/T699600.57~0.650.17~0.370.50~0.800.0350.0350.250.30.25GB/T699650.62~0.700.17~0.370.50~0.800.0350.0350.250.30.25GB/T699700.67~0.750.17~0.370.50~0.800.0350.0350.250.30.25GB/T699750.72~0.800.17~0.370.50~0.800.0350.0350.250.30.25GB/T699800.77~0.850.17~0.370.50~0.800.0350.0350.250.30.252、优质碳素结构钢牌号及化学成分:钢牌号及化学成分执行标准牌号化学成分(%)执行标准牌号化学成分(%)GB700-1988GB/T699850.82~0.900.17~0.370.50~0.800.0350.0350.30.25GB/T699Mn150.12~0.180.17~0.370.70~1.000.0350.0350.30.25GB/T699Mn200.17~0.230.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn250.22~0.290.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn300.27~0.340.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn350.32~0.390.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn400.37~0.440.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn450.42~0.500.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn500.48~0.560.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn600.57~0.650.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn650.62~0.700.17~0.370.90~1.200.0350.0350.250.30.25GB/T699Mn700.67~0.750.17~0.370.90~1.200.0350.0350.250.30.25C Si P S Cr NiAL ≤≥GB/T1591Q295A 0.160.80~1.500.550.0450.0450.02~0.150.015~0.0600.02~0.20GB/T1591Q395B 0.160.80~1.500.550.040.040.02~0.150.015~0.0600.02~0.20GB/T1591Q345A 0.20.10~1.600.550.0450.0450.02~0.150.015~0.0600.02~0.20GB/T1591Q345B 0.20.10~1.600.550.040.040.02~0.150.02~0.200.02~0.20GB/T1591Q345C 0.20.10~1.600.550.0350.0350.02~0.150.02~0.200.02~0.200.015GB/T1591Q345D 0.180.10~1.600.550.030.030.02~0.150.02~0.200.02~0.200.015GB/T1591Q345E 0.180.10~1.600.550.0250.0250.02~0.150.02~0.200.02~0.200.015GB/T1591Q345A 0.20.10~1.600.550.0450.0450.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390B 0.20.10~1.600.550.040.040.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390C 0.20.10~1.600.550.0350.0350.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390D 0.20.10~1.600.550.030.030.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390E 0.20.10~1.600.550.0250.0250.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420A 0.2 1.00~1.700.550.0450.0450.70.02~0.200.02~0.200.02~0.20GB/T1591Q420B 0.2 1.00~1.700.550.040.040.70.02~0.200.02~0.200.02~0.20GB/T1591Q420C 0.2 1.00~1.700.550.0350.0350.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420D 0.18 1.00~1.700.550.030.030.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460D 0.2 1.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460E 0.21.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.0154、合金机构钢牌号及化学成分3、低合金高度结构钢号及化学成分:执行标准牌号化学成分(%)Mn V Nb Ti≤(1)、锰合金机构钢牌号及化学成分:P S Cr Ni Cu GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307740Mn20.37~0.440.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307750Mn20.47~0.550.17~0.37 1.40~1.800.0350.0350.30.30.3(2)、锰钒合金结构钢牌号及化学成分:GB/T1591Q345B 0.20.10~1.600.550.040.040.02~0.150.02~0.200.02~0.20GB/T1591Q345C 0.20.10~1.600.550.0350.0350.02~0.150.02~0.200.02~0.200.015GB/T1591Q345D 0.180.10~1.600.550.030.030.02~0.150.02~0.200.02~0.200.015GB/T1591Q345E 0.180.10~1.600.550.0250.0250.02~0.150.02~0.200.02~0.200.015GB/T1591Q345A 0.20.10~1.600.550.0450.0450.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390B 0.20.10~1.600.550.040.040.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390C 0.20.10~1.600.550.0350.0350.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390D 0.20.10~1.600.550.030.030.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390E 0.20.10~1.600.550.0250.0250.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420A 0.2 1.00~1.700.550.0450.0450.70.02~0.200.02~0.200.02~0.20GB/T1591Q420B 0.2 1.00~1.700.550.040.040.70.02~0.200.02~0.200.02~0.20GB/T1591Q420C 0.2 1.00~1.700.550.0350.0350.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420D 0.18 1.00~1.700.550.030.030.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460D 0.2 1.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460E 0.21.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015P S Cr Ni Cu GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307740Mn20.37~0.440.17~0.371.40~1.800.0350.0350.30.30.34、合金机构钢牌号及化学成分执行标准牌号化学成分(%)(1)、锰合金机构钢牌号及化学成分:≤Mn Si C 执行标准牌号化学成分(%)C Si Mn ≤GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307750Mn20.47~0.550.17~0.371.40~1.800.0350.0350.30.30.3Mn P S Cr Ni ≤GB/T307720MnV 1.70~0.24 1.70~0.371.30~1.600.0350.0350.30.30.07~0.12P SCr Ni GB/T307727SiMn 0.24~0.32 1.10~1.40 1.10~1.400.0350.0350.30.3GB/T307735SiMn 0.32~0.40 1.10~1.40 1.10~1.400.0350.0350.3GB/T307742SiMn 0.39~0.45 1.10~1.401.10~1.400.0350.0350.3Mn P S Cr Ni Mo≤GB/T307720SiMn2MoV 0.17~0.230.90~1.20 2.20~2.600.0350.0350.30.30.30~0.400.05~0.12GB/T307825SiMn3MoV 0.22~0.280.90~1.20 2.20~2.600.0350.0350.30.30.30~0.400.05~0.12Mn P S Cr Ni≤GB/T307740B 0.37~0.440.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035GB/T307745B 0.42~0.490.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035GB/T307750B 0.47~0.550.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035Mn P S Cr Ni ≤GB/T307740MnB 0.37~0.440.17~0.37 1.10~1.400.0350.0350.30.30.0005~0.0035GB/T307745MnB 0.42~0.490.17~0.371.10~1.400.0350.0350.30.30.0005~0.0035Mn P S Cr Ni执行标准牌号化学成分(%)C SiV (3)、硅锰合金结构钢牌号及化学成分执行标准牌号化学成分(%)C Si Mn ≤(4)、硅锰钼矾合金结构钢牌号及化学成分执行标准牌号化学成分(%)C SiV GB/T3078 37SiMn3MoV 0.33~0.39 0.90~1.20 1.60~1.90 0.035 0.035 0.3 0.3 0.3 0.40~0.50 0.05~0.12(5)、硼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si B(6)、锰硼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C SiB(7)、锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C SiB(2)、锰钒合金结构钢牌号及化学成分:≤GB/T307720MnMoB 0.16~0.220.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035Mn P S Cr Ni ≤GB/T307715MnVB 0.12~0.180.17~0.37 1.20~1.600.0350.0350.30.30.07~0.0120.0005~0.0035GB/T307720MnVB 0.17~0.230.17~0.37 1.10~1.400.0350.0350.30.30.07~0.0120.0005~0.0035GB/T307740MnVB 0.37~0.440.17~0.371.30~1.500.0350.0350.30.30.07~0.0120.0005~0.0035Mn P S Cr Ni V BRE ≤ ≤GB/T307720MnTiB 0.17~0.240.17~0.37 1.30~1.500.0350.0350.30.30.04~0.100.0005~0.0035GB/T307725MnTiBRE 0.22~0.280.20~0.451.30~1.600.0350.0350.30.30.04~0.100.0005~0.00350.05P SNi Cu GB/T307715Cr 0.12~0.180.17~0.370.40~0.700.70~1.000.0350.0350.30.3GB/T307715CrA 0.12~0.170.17~0.370.40~0.700.70~1.000.0250.0250.30.3GB/T307720Cr 0.18~0.240.17~0.370.50~0.800.70~1.000.0350.0350.30.3GB/T307730Cr 0.27~0.340.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307735Cr 0.32~0.390.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307740Cr 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307745Cr 0.42~0.490.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307750Cr 0.47~0.540.17~0.370.50~0.700.80~1.100.0350.0350.30.3P SNi Cu GB/T307712CrMo 0.80~0.120.17~0.370.40~0.700.40~0.700.40~0.550.0350.0350.30.3GB/T307715CrMo 0.12~0.180.17~0.370.40~0.700.80~1.100.40~0.550.0350.0350.30.3GB/T307720CrMo 0.17~0.240.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3GB/T307730CrMo 0.26~0.340.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3GB/T307730CrMoA 0.26~0.330.17~0.370.40~0.700.80~1.100.15~0.250.0250.0250.30.3GB/T307735CrMo0.32~0.400.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3执行标准牌号C SiB(8)、锰矾硼合金机构钢牌号及化学成分:执行标准牌号化学成分(%)C SiV BMn Cr (9)、锰钛合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Si Mn Cr Mo(10)、钼铬金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si ≤(11)、铬硅合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C ≤GB/T307742CrMo 0.38~0.450.17~0.370.50~0.800.90~1.200.15~0.250.0350.0350.30.3P SNiCuGB/T307742CrSi 0.35~0.43 1.00~1.300.30~0.601.30~1.600.0350.0350.30.3P SNiCu VGB/T307712CrMoV 0.08~0.150.17~0.370.40~0.700.30~0.600.25~0.350.0350.0350.30.30.15~0.30GB/T307735CrMoV 0.30~0.380.17~0.370.40~0.70 1.00~1.300.20~0.300.0350.0350.30.30.10~0.20GB/T307712Cr1MoV 0.08~0.150.17~0.370.40~0.700.90~1.200.25~0.350.0350.0350.30.30.15~0.30GB/T307725Cr2MoVA 0.22~0.290.17~0.370.40~0.70 1.50~1.800.25~0.350.0250.0250.30.30.15~0.30GB/T307725Cr2Mo1VA 0.22~0.290.17~0.370.50~0.802.10~2.500.90~1.100.0250.0250.30.30.30~0.50P SNiCu A1GB/T307738CrMoVA10.35~0.420.20~0.450.30~0.601.35~1.650.15~0.250.0350.0350.30.30.70~1.10P SNi Cu GB/T307740CrV 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.0350.30.30.10~0.20GB/T307750CrVA 0.47~0.540.17~0.370.50~0.800.80~1.100.0250.0250.30.30.10~0.20P SNi Cu GB/T307715CrMn 0.12~0.180.17~0.37 1.10~1.400.40~0.700.0350.0350.30.3GB/T307720CrMn 0.17~0.230.17~0.370.90~1.200.90~1.200.0250.0250.30.3GB/T307742CrMn 0.37~0.450.17~0.370.90~1.200.90~1.200.0350.0350.30.3P SNi CuSi Mn Cr ≤Mn Cr Mo≤(12)、铬钼合金结构钢号及化学成分:执行标准牌号化学成分(%)C Mn Cr Mo≤(13)、铬钼矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr V (14)、铬钼铝合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Si Mn Cr (15)、铬矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiC Si Mn Cr≤(16)、铬锰合金结构钢号及化学成分:执行标准牌号化学成分(%)C ≤≤(17)、铬锰硅合金结构钢号及化学成分:执行标准牌号化学成分(%)GB/T307720CrMnSi 0.17~0.230.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307725CrMnSi 0.22~0.280.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307730CrMnSi 0.27~0.340.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307731CrMnSiA 0.28~0.340.90~1.200.80~1.100.80~1.100.0250.0250.30.3GB/T307732CrMnSiA 0.32~0.39 1.10~1.400.80~1.101.10~1.400.0250.0250.30.3P SNi Cu GB/T307720CrMoNo 0.17~0.230.17~0.370.90~1.20 1.10~1.400.20~0.300.0350.0350.30.3GB/T307740CrMoNo 0.37~0.440.17~0.370.90~1.200.90~1.200.20~0.300.0350.0350.30.3P S Cu GB/T307720CrNi 0.17~0.230.17~0.370.40~0.700.45~0.75 1.00~1.400.0350.0350.30.80~1.100.80~1.10GB/T307740CrNi 0.37~0.440.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.30.80~1.100.80~1.10GB/T307745CrNi 0.42~0.490.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.3GB/T307750CrNi 0.47~0.540.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.3GB/T307712CrNi20.10~0.170.17~0.370.30~0.600.60~0.90 1.50~1.900.0350.0350.3GB/T307712CrNi30.10~0.170.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307720CrNi30.17~0.240.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307730CrNi30.27~0.330.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307737CrNi30.34~0.410.17~0.370.30~0.60 1.20~1.60 3.00~3.500.0350.0350.3GB/T307712CrNi40.10~0.160.17~0.370.30~0.60 1.25~1.65 3.25~3.650.0350.0350.3GB/T307720CrNi40.17~0.230.17~0.370.30~0.601.25~1.65 3.25~3.650.0350.0350.3P S Cu Ni GB/T307720CrMnTi 0.17~0.230.17~0.370.80~1.10 1.00~1.300.04~0.100.0350.0350.30.3GB/T307730CrMnTi 0.24~0.320.17~0.370.80~1.101.00~1.300.04~0.100.0350.0350.30.3P S CuGB/T307720CrNiMo0.17~0.230.17~0.370.60~0.950.40~0.700.35~0.750.20~0.300.0350.0350.3(18)、铬锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Mo≤(19)、铬镍合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ni≤(20)、铬锰钛合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ti≤(21)、铬镍钼合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ni Mo≤GB/T307721CrNiMoA 0.37~0.440.17~0.370.50~0.800.60~0.90 1.25~1.650.15~0.250.0250.0250.3P S CuGB/T307718CrNiMnMoA 0.15~0.210.17~0.37 1.10~1.401.00~1.30 1.00~1.300.20~0.300.0250.0250.3P S CuGB/T307718CrNiMoVA 0.42~0.480.17~0.370.50~0.800.80~1.10 1.30~1.800.20~0.300.10~0.200.0250.0250.3P S CuGB/T307718Cr2Ni4WA 0.13~0.190.17~0.370.30~0.60 1.35~1.65 4.00~4.500.80~1.200.0250.0250.3GB/T307725Cr2Ni4WA 0.21~0.280.17~0.370.30~0.601.35~1.65 4.00~4.500.80~1.200.0250.0250.3P S CuGB/T521645H 0.42~0.500.17~0.370.50~0.85≤0.25≤0.300.0350.0350.25GB/T521615CrH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.300.0350.0350.3GB/T521620CrH 0.17~0.230.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521620CrLH 0.17~0.230.17~0.370.55~0.900.85~1.25≤0.300.0350.0350.3GB/T521640CrH 0.37~0.440.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521620CrH 0.42~0.490.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521616CrMnH 0.14~0.19≤0.37 1.00~1.300.80~1.10≤0.300.0350.0350.3GB/T521620CrMnH 0.17~0.22≤0.37 1.10~1.40 1.00~1.30≤0.300.0350.0350.3GB/T521615CrMnBh 0.13~0.180.17~0.37 1.00~1.300.80~1.10≤0.300.0005~0.00300.0350.0350.3GB/T521617CrMnBh 0.15~0.200.17~0.37 1.00~1.30 1.00~1.35≤0.300.0005~0.00300.0350.0350.3GB/T521640MnBH 0.37~0.440.17~0.37 1.00~1.40≤0.30≤0.300.0005~0.00300.0350.0350.3GB/T521645MnBH 0.42~0.490.17~0.37 1.00~1.40≤0.30≤0.300.0005~0.00300.0350.0350.3GB/T521620MnVBH 0.17~0.230.17~0.37 1.05~1.45≤0.30≤0.30V=0.07~0.120.0005~0.00300.0350.0350.3GB/T521620MnTiBH 0.17~0.230.17~0.37 1.20~1.55≤0.30≤0.30Ti=0.04~0.100.0005~0.00300.0350.0350.3GB/T521615CrMoH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3GB/T521620CrMoH0.17~0.230.17~0.371.10~1.480.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3(22)、铬镍锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMn CrNiV≤Mo≤(23)、铬镍钼矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMn CrNiWNiMo Mn CrSi Mn Cr Ni (24)、铬镍钨合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMo、Ti、V B≤≤5、保证淬透性结构钢(H钢)牌号及化学成分:执行标准牌号化学成分(%)CGB/T521622CrMoH 0.19~0.250.17~0.37 1.10~1.490.85~1.25≤0.30Mo=0.35~0.450.0350.0350.3GB/T521644CrMoH 0.37~0.440.17~0.37 1.10~1.500.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3GB/T521620CrMnMoH 0.17~0.230.17~0.37 1.10~1.51 1.05~1.40≤0.30Mo=0.20~0.300.0350.0350.3GB/T521620CrMnTiH 0.17~0.230.17~0.37 1.10~1.52 1.00~1.35≤0.30Ti=0.04~0.100.0350.0350.3GB/T521647CrNi3H 0.17~0.230.17~0.37 1.10~1.530.60~0.95 2.70~3.250.0350.0350.3GB/T521647Cr2Ni4H 0.10~0.170.17~0.37 1.10~1.54 1.20~1.75 3.20~3.750.0350.0350.3GB/T521620CrNiMoH 0.17~0.230.17~0.37 1.10~1.550.35~0.650.35~0.75Mo=0.15~0.250.0350.0350.3GB/T521620CrNi2MoH 0.17~0.230.17~0.37 1.10~1.560.35~0.65 1.55~2.00Mo=0.20~0.300.0350.0350.36、易切削结构钢牌号及化学成分:C Si MnPSPbGB/T8731Y120.08~0.160.15~0.350.70~1.000.08~0.150.10~0.20GB/T8731Y12Pb 0.08~0.16≤0.150.70~1.000.05~0.100.15~0.250.15~0.35GB/T8731Y150.10~0.18≤0.150.80~1.200.05~0.100.23~0.33GB/T8731Y15pb 0.10~0.19≤0.150.80~1.200.05~0.100.23~0.330.15~0.35GB/T8731Y200.17~0.250.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y300.27~0.350.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y350.32~0.400.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y40Mn 0.37~0.450.15~0.35 1.20~1.55≤0.0500.20~0.30GB/T8731Y45Ca 0.42~0.500.20~0.400.60~0.90≤0.900.04~0.08Ca=0.15~0.357、冷墩和冷压用钢牌号及化学成分:(1)、非热处理型冷墩和冷挤压用钢牌号及化学成分:Si P S Cu Ni CrALt≤≥GB/T6478ML04ML ≤0.060.10.20~0.400.0350.0350.200.200.20.02GB/T6478ML08AL 0.05~0.100.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML10AL 0.08~0.130.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML15AL 0.13~0.180.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML15AL 0.13~0.180.15~0.350.30~0.600.0350.0350.200.200.2GB/T6478ML20AL 0.18~0.230.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML200.18~0.230.15~0.350.30~0.600.0350.0350.200.200.2(2)、表面硬化型冷墩和冷挤压用钢牌号及化学成分:Si P S Cu Ni CrALt ≤≥GB/T6478ML18Mn0.15~0.200.10.60~0.900.0350.0350.200.200.20.02执行标准牌号化学成分(%)执行标准牌号化学成分(%)CMn≤执行标准牌号化学成分(%)C Mn≤GB/T6478ML22Mn 0.18~0.230.10.70~1.000.0350.0350.200.200.20.02GB/T6478ML20Cr 0.17~0.230.30.60~0.900.0350.0350.200.200.90~1.200.02(3)、调质型冷镦和冷挤压用钢牌号及化学成分:ALt P S NiCu ≥GB/T6478ML250.22~0.29≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML300.27~0.34≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML350.32~0.39≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML400.37~0.44≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML450.42~0.50≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML15Mn 0.14~0.200.20~0.400.20~0.40≤0.200.0350.0350.020.02GB/T6478ML25Mn 0.22~0.29≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML30Mn 0.27~0.34≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML35Mn 0.32~0.39≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML37Cr 0.34~0.41≤0.300.60~0.900.90~1.200.0350.0350.020.02GB/T6478ML40Cr 0.38~0.45≤0.300.60~0.900.90~1.200.0350.0350.020.02GB/T6478ML30CrMo 0.26~0.34≤0.300.60~0.900.15~0.250.80~1.100.0350.0350.020.02GB/T6478ML35CrMo 0.32~0.40≤0.300.60~0.900.15~0.250.80~1.100.0350.0350.020.02GB/T6478ML42CrMo 0.38~0.45≤0.300.60~0.900.15~0.250.90~1.200.0350.0350.020.02GB/T6478ML20B 0.17~0.24≤0.400.50~0.800.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML28B 0.25~0.32≤0.400.60~0.900.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML35B 0.32~0.39≤0.400.50~0.800.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML15MnB 0.14~0.20≤0.40 1.20~1.600.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML20MnB 0.17~0.24≤0.400.80~1.200.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML35MnB 0.32~0.39≤0.40 1.10~1.400.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML37CrB 0.34~0.41≤0.400.50~0.800.0005~0.00350.20~0.400.020.0350.0350.020.02GB/T6478ML20MnTiB 0.19~0.24≤0.30 1.30~1.600.04~0.100.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML15VMnB 0.13~0.18≤0.30 1.20~1.600.07~0.120.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML20VMnB 0.19~0.24≤0.301.20~1.600.07~0.120.0005~0.0035≤0.200.020.0350.0350.020.028、高耐侯结构钢牌号及化学成分表:化学成分(%)C SiMnPS Cr Ni CuTi RE ≤≤GB/T4171Q295GNH 0.25~0.500.20~0.400.20~0.600.07~0.150.0350.25~0.550.10.15GB/T4171Q295GNHL 0.120.10~0.400.20~0.500.07~0.120.0350.30~0.650.25~0.500.25~0.451GB/T4171Q345GNH 0.120.20~0.600.50~0.900.07~0.120.0350.25~0.500.030.15执行标准牌号化学成分(%)C Si Mn Mo.Ti.V B Cr≤执行标准牌号≤GB/T4171Q345GNHL 0.120.25~0.750.20~0.500.07~0.120.0350.30~1.25≤0.650.25~0.55GB/T4171Q390GH 0.120.15~0.65≤1.40≤0.0350.0350.45~0.750.05~0.300.25~0.500.10.129、焊接结构用耐钢牌号及化学成分类:C SiMnP S Cr V CuNiGB/T4172Q235NH ≤0.150.15~0.400.20~0.600.0350.0350.40~0.800.02~0.50GB/T4172Q295NH ≤0.150.15~0.50 1.00~1.600.0350.0350.40~0.800.02~0.50GB/T4172Q355NH ≤0.16≤0.500.90~1.000.0350.0350.40~0.800.02~0.100.02~0.50GB/T4172Q460NH 0.10~0.18≤0.500.90~1.000.0350.0350.40~0.800.02~0.50PSCrNiCuGB/T122265钢0.62~0.700.17~0.370.50~0.800.0350.0350.250.250.25GB/T122270钢0.62~0.750.17~0.370.50~0.800.0350.0350.250.250.25GB/T122285钢0.82~0.900.17~0.370.50~0.800.0350.0350.250.250.25GB/T122265Mn 0.62~0.700.17~0.370.90~1.20.0350.0350.250.25(2)、合金弹簧钢牌号及化学成分:P SNiCu GB/T122255Si2Mn 0.52~0.60 1.50~2.000.60~0.90≤0.350.0350.0350.350.25GB/T122255si2MnB 0.52~0.60 1.50~2.000.60~0.900.0005~0.004≤0.350.0350.0350.350.25GB/T122255siMnVB 0.52~0.600.70~1.00 1.00~1.300.08~0.100.0005~0.0035≤0.350.0350.0350.350.25GB/T122260si2Mn 0.56~0.64 1.50~2.000.60~0.90≤0.350.0350.0350.350.25GB/T122260si2MnA 0.56~0.64 1.60~2.000.60~0.90≤0.300.030.0350.350.25GB/T122260si2CrA 0.56~0.64 1.40~1.800.40~0.600.70~1.000.030.030.350.25GB/T122260si2CrVA 0.56~0.64 1.40~1.800.40~0.600.10~0.200.90~1.200.030.030.350.25GB/T122255CrMnA 0.50~0.600.17~0.370.65~0.950.65~0.950.030.030.350.25GB/T122260CrMnA 0.56~0.640.17~0.370.70~1.000.70~1.000.030.030.350.25GB/T122260CrMnMoA 0.56~0.640.17~0.370.70~1.000.25~0.350.70~0.900.030.030.350.25GB/T122250CrVA 0.46~0.640.17~0.370.50~0.800.10~0.200.80~1.100.030.030.350.25GB/T122260CrMnBA 0.56~0.640.17~0.370.70~1.000.0005~0.0040.70~1.000.030.030.350.25GB/T122230W4Cr2VA 0.26~0.340.17~0.37≤0.400.50~0.80 4.00~4.502.00~2.500.030.030.350.2511、高碳铬轴承钢牌号及化学成分表:Si Mn ≤执行标准牌号化学成分(%)V W、Mo、B Cr≤10、弹簧钢牌号及化学成分表:(1)、优质碳素弹簧钢号及化学成分表:执行标准牌号化学成分(%)C执行标准牌号化学成分(%)C Si Mn 化学成分(%)模连GB/T18254GCr40.95~1.050.15~0.300.15~0.30≤0.080.35~0.500.0250.0250.250.215×1012×10GB/T18255GCrl50.95~1.050.15~0.350.25~0.45≤0.10 1.40~1.500.0250.0250.30.2515×1012×10GB/T18256GCrl5SiMn 0.95~1.050.45~0.750.95~1.25≤0.10 1.40~1.650.0250.0250.30.2515×1012×10GB/T18257GCrl5SiMn 0.95~1.050.65~0.850.20~0.400.30~0.40 1.40~1.700.0270.020.30.2515×1012×10GB/T18258GCrl8Mo 0.95~1.050.20~0.400.25~0.400.15~0.251.65~1.950.0250.020.250.2515×1012×10二、不绣钢、耐热钢牌号及化学成分:1、不绣钢牌号及化学成分:(1)、奥氏体不绣钢牌号及化学成分:C SiMnP SCu ≤GB/T12201Cr17Mn6Ni5N0.1515.50~0.060.0316.00~18.003.50~5.50≤0.250.27.5GB/T12201Cr18Mn8Ni5N 0.15 1.007.50~10.000.060.0317.00~19.004.00~6.00≤0.250.2 2.80~3.50GB/T12201Cr18Mn10Ni5Mo30.1 1.008.50~12.000.060.0317.00~19.004.00~6.000.20~0.300.2GB/T12201Cr17Ni70.15 1.00 2.000.0350.0316.00~18.006.00~8.000.2GB/T12201Ce18Ni90.15 1.00 2.000.0350.0317.00~19.008.00~10.000.2≤0.60GB/T1220Y1Cr18Ni90.15 1.00 2.000.2 ≥0.1517.00~19.008.00~10.000.2Se≥0.15GB/T1220Y1Cr18Ni9Se 0.15 1.00 2.000.20.0617.00~19.008.00~10.000.2GB/T12200Cr18Ni90.07 1.00 2.000.0350.0317.00~19.008.00~11.000.2GB/T122000Cr19Ni100.03 1.00 2.000.0350.0318.00~20.008.00~12.000.2GB/T12200Cr19Ni9N 0.08 1.00 2.000.0350.03518.00~20.007.00~10.500.10~0.250.2GB/T12200Cr19Ni10NbN 0.08 1.00 2.000.0350.0318.00~20.007.50~10.500.15~0.300.2Nb≤0.15GB/T122000Cr18Ni10N 0.03 1.00 2.000.0350.0317.00~29.008.50~11.500.12~0.220.2GB/T12201Cr18Ni120.12 1.00 2.000.0350.0317.00~19.0010.50~13.000.2GB/T12200Cr23Ni130.08 1.00 2.000.0350.0322.00~24.0012.00~15.000.2GB/T12200Cr25Ni200.08 1.00 2.000.0350.0324.00~26.0019.00~22.000.2GB/T12200Cr17Ni12Mo20.08 1.00 2.000.0350.0316.00~18.5010.00~14.000.2 2.00~3.00GB/T12201Cr17Ni12Mo2Ti 0.12 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 1.80~2.50Ti=5×(c-0.02)~0.80GB/T12200Cr17Ni12Mo2Ti 0.08 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 1.80~2.50Ti=5×C~0.70GB/T122000Cr17Ni14Mo20.03 1.00 2.000.0350.0316.00~18.0012.00~15.000.2 2.00~3.00GB/T12200Cr17Ni12Mo2N 0.08 1.00 2.000.0350.0316.00~18.0010.00~14.000.10~0.220.2 2.00~3.00GB/T12200Cr17Ni13Mo2N 0.03 1.00 2.000.0350.0316.00~18.0010.50~14.500.12~0.220.2 2.00~3.00GB/T12200Cr18Ci12Mo2Cu20.081.002.000.0350.0317.00~19.0010.00~14.501.00~2.501.20~2.75Mo Cr P S NiCuO≤执行标准牌号C Si Mn N Mo 其它≤执行标准牌号Cr NiGB/T122000Crl8Ni4Mo2Cu20.03 1.00 2.000.0350.0317.00~19.0012.00~16.00 1.00~2.501.20~2.75GB/T12200Cr19Ni13Mo30.08 1.00 2.000.0350.0318.00~20.0011.00~15.000.23.00~4.00GB/T122000Cr19Ni13Mo30.03 1.00 2.000.0350.0318.00~20.0011.00~15.000.2 3.00~4.00GB/T12201Crl8Nil2Mo3Ti 0.12 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 2.50~3.50Ti=5×(c-0.02)~0.80GB/T12200Cr18Ni12Mo3Ti 0.08 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 2.50~3.50Ti=5×C~0.70GB/T12200Cr18Ni12Mo50.04 1.00 2.000.0350.0316.00~19.0015.00~17.000.2 4.00~6.00GB/T12201Crl8Ni9Ti 0.12 1.00 2.000.0350.0317.00~19.008.00~11.000.2Ti=5×(c-0.02)~0.80GB/T12200Cr18Ni10Ti 0.08 1.00 2.000.0350.0317.00~19.009.00~12.000.2Ti ≥5×C GB/T12200Crl8NillNb 0.08 1.00 2.000.0350.0317.00~19.009.00~13.000.2Nb≤10×CGB/T12200Crl8Ni9Cu30.08 1.00 2.000.0350.0317.00~19.008.50~10.50 3.00~4.00GB/T12200Crl8Ni13Si40.08 3.00~5.002.000.0350.0315.00~20.0011.50~15.000.2(2)、奥氏体——铁素体不锈钢牌号及化学成分:C SiMn P S Cu ≤GB/T12200Cr26NiMo20.08 1.00 1.500.0350.0323.00~28.003.00~6.00 1.00~3.000.2GB/T12201Cr18NillSi4A 0.10~0.18 3.40~4.000.800.0350.0317.50~19.5010.00~12.000.20.10~0.300.40~0.70GB/T122000Cr18Ni5Mo3S 0.03 2.001.00~2.000.0350.0318.00~19.004.50~5.50 2.50~3.000.2(3)铁素体不锈钢牌号及化学成分:C SiMn P S NiCu 其它GB/T12200Cr13AL 0.08 1.001.000.0350.0311.50~14.500.600.200.10~0.30GB/T122000Cr120.03 1.00 1.000.0350.0311.00~13.000.600.20GB/T12201Cr170.120.75 1.000.0350.0316.00~18.000.600.20GB/T1220Y1Cr170.12 1.00 1.250.06≥0.1516.00~18.00≤0.600.600.20GB/T12201Cr17Mo 0.12 1.00 1.000.0350.0316.00~18.000.75~1.250.600.20GB/T122000Cr30Mo20.100.400.400.030.0228.50~32.001.50~2.500.600.20GB/T122000Cr27Mo 0.100.400.400.030.0225.00~27.500.75~1.500.600.20Ni+Cu≤0.50(4)、马氏体不锈钢钢牌号及化学成分:执行标准牌号CSi Mn P S Cu GB/T1220≤GB/T12201Cr120.150.5 1.000.0350.0311.50~13.00≤0.600.20GB/T12201Cr130.15 1.00 1.000.0350.0311.50~13.50≤0.600.20GB/T12200Cr130.08 1.00 1.000.0350.0311.50~13.50≤0.600.20GB/T1220Y1Cr130.151.001.250.06≥0.1512.00~14.00≤0.60≤0.600.20Ni MoAl Ti执行标准牌号化学成分(%)Cr ≤MoAl ≤≤执行标准牌号化学成分(%)Cr 化学成分(%)Cr Ni MoVGB/T12201Cr13Mo 0.08~0.180.6 1.000.0350.0311.50~14.00≤0.600.30~0.600.20GB/T12202Cr130.16~0.25 1.00 1.000.0350.0312.00~14.00≤0.600.20GB/T12203Cr130.26~0.35 1.00 1.000.0350.0312.00~14.00≤0.600.20GB/T1220Y3Cr130.26~0.40 1.00 1.250.06≥0.1512.00~14.00≤0.60≤0.600.20GB/T12203Cr13Mo 0.28~0.350.8 1.000.0350.0312.00~14.00≤0.600.50~1.000.20GB/T12204Cr130.36~0.450.60.800.0350.03≤0.600.20GB/T12201Cr17Ni20.11~0.170.80.800.0350.03 1.50~2.500.20GB/T12207Cr170.60~0.75 1.00 1.000.0350.03≤0.60≤0.750.20GB/T12208Cr170.75~0.95 1.00 1.000.0350.03≤0.60≤0.750.20GB/T12209Cr180.90~1.000.8 1.250.0350.03≤0.60≤0.750.20GB/T122011Cr170.95~1.20 1.00 1.000.0350.03≤0.60≤0.750.20GB/T1220Y11Cr170.95~1.20 1.00 1.000.035≥0.15≤0.60≤0.750.20GB/T12209Cr18Mo 0.95~1.100.80.80.0350.03≤0.600.40~0.700.20GB/T12209Cr18MoV 0.85~0.950.80.80.0350.04≤0.60 1.00~1.300.20.07~0.12(4)沉淀硬化型不锈钢牌号及化学成分:C SiMnPSMo CuNbAlGB/T12200Cr17Ni4Cu4nb 0.07 1.00 1.000.0350.0315.50~17.503.00~5.00 3.00~5.000.15~0.45GB/T12200Cr17Ni7Al 0.09 1.00 1.000.0350.0316.00~18.006.50~7.750.2GB/T12200Cr15Ni7Mo2Al 0.091.001.000.0350.0314.00~16.006.50~7.503.00~5.000.250.75~1.502、耐热钢牌号及化学成分:0.75~1.50(1)、奥氏体不绣钢牌号及化学成分:P SGB/T12215Cr21Mn9Ni4N 0.48~0.580.358.00~1.000.040.03020.00~22.00 3.25~4.500.35~0.50GB/T12212Cr21Ni12N 0.15~0.280.75~1.25 1.00~1.600.0350.03020.00~22.0010.50~12.500.15~0.30GB/T12212Cr23Ni12N 0.201.002.000.0350.03022.00~24.0012.00~15.00GB/T12212Cr25Ni200.25 1.50 2.000.0350.03024.00~26.0019.00~22.00GB/T12211Cr16Ni350.151.502.000.0350.03014.00~17.0033.00~37.00GB/T1221Cr15Ni25Ti2MoAlV 0.081.002.000.0350.03013.50~16.0024.00~27.00V=0.10~0.50Mo=1.00~1.50Al≤0.35Ti=1.90~2.35B=0.001~0.010GB/T12210r18Ni90.07 1.00 2.000.0350.03017.00~19.008.00~11.00GB/T12210Cr23Ni130.08 1.00 2.000.0350.03022.00~24.0012.00~15.00GB/T12210Cr25Ni200.08 1.50 2.000.0350.03024.00~26.0019.00~22.00Si Mn 执行标准牌号化学成分(%)Cr Ni≤Cr Ni ≤执行标准牌号化学成分(%)C N、V、B、A1、W Mo、Nb、Ti。
gs 21 mn5 化学成分
GS-21 MN5是一种广泛用于工业和科学研究领域的材料,其化学成分以及相关特性一直备受关注。
本文将通过详细的分析和讨论,带领读者深入了解GS-21 MN5的化学成分,并探讨其在不同领域的应用。
一、GS-21 MN5的化学成分GS-21 MN5是一种含有多种金属元素的合金材料,其主要化学成分包括铁、锰、硅、铬、镍等。
具体的化学成分如下:1. 铁(Fe):铁是GS-21 MN5合金的主要成分,其含量通常在70以上,起到了增加材料强度和硬度的作用。
2. 锰(Mn):锰是另一个重要的成分,其含量一般在10-15之间,能够提高合金的韧性和耐磨性。
3. 硅(Si):硅的含量在2-3左右,对提高材料的耐热性和耐蚀性起着关键作用。
4. 铬(Cr):铬的含量在5-8之间,能够增加合金的耐蚀性和耐磨性,使其在恶劣环境下具有更长的使用寿命。
5. 镍(Ni):镍的含量一般在5-8之间,能够提高合金的强度和塑性,同时提高其耐热性和耐腐蚀性。
二、GS-21 MN5的相关特性除了上述的化学成分之外,GS-21 MN5合金还具有一些其他的特性,使其在工业和科学研究领域得到广泛的应用。
1. 优异的磁性能:由于含有大量的铁和其他磁性元素,GS-21 MN5具有优异的磁性能,可用于制造电机、发电机等磁性零部件。
2. 良好的耐热性:GS-21 MN5合金在高温下仍能保持较好的力学性能和化学稳定性,适合用于高温工作环境。
3. 高强度和耐磨性:在含有锰、铬等合金元素的作用下,GS-21 MN5具有较高的强度和良好的耐磨性,可用于制造耐磨零部件。
4. 良好的耐蚀性:合金中的铬、镍等元素能够提高其耐蚀性,使其在腐蚀性环境中具有较好的稳定性和耐用性。
三、GS-21 MN5的应用领域基于GS-21 MN5的优良化学成分和相关特性,该材料被广泛应用于多个领域,包括但不限于以下几个方面:1. 电力行业:GS-21 MN5合金的优异磁性能使其成为电机、发电机等设备的理想材料,能够提高设备的性能和效率。
硅锰铁 锰硅合金
硅锰铁锰硅合金
硅锰铁是一种合金,主要由硅、锰和铁组成。
它是一种重要的冶金原料,被广泛用于钢铁生产和其他工业领域。
硅锰铁具有许多优点,例如高熔点、高硬度和良好的抗腐蚀性能,这使得它在钢铁冶金中起着不可或缺的作用。
硅锰铁在钢铁生产中被用作脱氧剂和合金元素。
钢是一种含碳量较低的合金,硅锰铁中的锰和硅可以有效地去除钢中的氧气,从而减少了钢中的气孔和夹杂物。
此外,硅锰铁中的锰还可以提高钢的硬度和抗磨损性能,使钢具有更好的力学性能和耐久性。
硅锰铁在铸造行业也有着重要的应用。
铸造是一种通过将熔融金属注入到模具中,使其冷却硬化成型的工艺。
硅锰铁在铸造过程中可以提高铸件的强度和耐磨性,同时还能够抑制铸件中的气孔和夹杂物的生成,从而提高铸件的质量。
硅锰铁还被广泛应用于电力行业和化工行业。
在电力行业,硅锰铁可以用作电石炉的一种原料,用于生产电石和其他化学产品。
在化工行业,硅锰铁可以用于生产有机硅化合物和其他化学品,这些化学品在合成橡胶、塑料和涂料等领域有着广泛的应用。
总的来说,硅锰铁是一种非常重要的合金材料,它在钢铁冶金、铸造、电力和化工等行业中都有广泛的应用。
硅锰铁的优良性能使得它成为许多工业生产过程中不可或缺的材料。
通过合理使用硅锰铁,
我们可以改善产品的质量,提高生产效率,推动工业的发展。
硅锰合金质量标准
硅锰合金质量标准硅锰合金是一种用途广泛的合金材料,常用于钢铁生产中的脱氧剂和合金元素。
由于其在钢铁冶炼中的重要性,硅锰合金的质量标准也显得尤为重要。
下面将从硅锰合金的质量标准内容、执行标准以及质量控制等方面进行详细介绍。
首先,硅锰合金的质量标准内容包括化学成分、机械性能、工艺性能等方面。
硅锰合金的化学成分应符合相关标准规定,主要包括硅含量、锰含量、硫含量、磷含量等。
机械性能包括抗拉强度、屈服强度、延伸率等指标,这些性能直接影响硅锰合金在钢铁生产中的使用效果。
工艺性能包括熔化性能、析氧化能力等指标,这些性能对硅锰合金的生产工艺和质量控制具有重要意义。
其次,硅锰合金的质量标准执行标准是指硅锰合金生产和质量控制过程中需要遵循的标准规定。
目前,硅锰合金的执行标准主要包括国家标准、行业标准和企业标准等。
国家标准是硅锰合金生产的最基本标准,包括硅锰合金的化学成分、机械性能、工艺性能等指标。
行业标准是根据不同行业的需要而制定的标准,可以更好地适应硅锰合金在不同领域的应用。
企业标准是指企业根据自身生产情况和技术水平所制定的标准,是企业质量管理的重要依据。
最后,硅锰合金的质量控制是保证硅锰合金质量标准的重要手段。
硅锰合金的质量控制主要包括原料质量控制、生产过程质量控制和成品质量检测等方面。
原料质量控制是硅锰合金质量的基础,需要对硅锰合金的原料进行严格的检验和控制。
生产过程质量控制是指在硅锰合金生产的各个环节中进行质量监控和管理,确保合金的质量稳定和可控。
成品质量检测是对生产出的硅锰合金进行全面的质量检测,确保合金的质量达到标准要求。
总的来说,硅锰合金的质量标准是硅锰合金生产和质量控制的重要指导,对硅锰合金的质量和性能起着至关重要的作用。
只有严格执行硅锰合金的质量标准,才能保证硅锰合金的质量稳定、性能可靠,进而推动钢铁产业的发展和进步。
希望各生产企业和相关部门能够高度重视硅锰合金的质量标准,加强质量管理,提升硅锰合金的质量水平,为我国钢铁产业的发展做出更大的贡献。
硅锰合金基础知识简介
硅锰合金基础知识简介硅锰合金:(1)概念:硅锰合金是由锰、硅、铁及少量碳和其它元素组成的合金,是一种用途较广、产量较大的铁合金。
硅锰合金是炼钢常用的复合脱氧剂,又是生产中,低碳锰铁和电硅热法生产金属锰的还原剂。
硅锰合金可在大、中、小型矿热炉内采取连续式操作进行冶炼。
(2)硅锰在国内西南地区较多,云南、贵州、广西、湖南。
生产硅锰合金的原料有锰矿、富锰渣、硅石、焦炭等。
(3)常见牌号:FeMn68Si18 FeMn65Si17 FeMn60Si14(4)原料:锰矿、富锰渣、焦炭、硅石、石灰等.1、硅锰合金的用途:硅锰合金主要是作为钢铁生产的脱氧剂和合金剂的中间料,同时也是中低碳锰铁生产的主要原料2、硅锰合金的生产方法:硅锰合金都是在矿热炉中用炭同时还原锰矿石(包括富锰渣)和硅石中的氧化锰和二氧化硅而炼制生产的。
3、硅锰合金性能:块状、有银光泽、比重6.0-6.4。
锰矿:储量主要集中在南非、莫桑比克、澳大利亚、俄罗斯、缅甸、加蓬等国,我国的锰矿产地是辽宁、湖南、四川、广西等地区,但是因为品位低,所以每年需要从国外进口大量高品位锰矿搭配使用。
(5)炉锰矿石品位应在30%以上,国内都是贫锰矿,需进口一些富锰矿(大于30%)主要从巴西、加蓬、澳大利亚等国家。
据不完全统计,锰矿品位每降低1%,硅锰合金电耗升高135KWh。
尽可能提高入炉锰矿石的品位,是提高锰回收率、降低电耗,改善其他各项指标的重要手段。
对于硅石的要求:SiO2>97%,P2O5<0.02%,粒度10-40mm,不带泥土及杂物。
对于焦炭的要求:固定碳>84%,灰分<;14%,焦炭粒度,一般中小电炉使用3-13mm,大电炉使用5-25mm。
锰硅合金按锰、硅及其杂质含量的不同,分为8个牌号,其化学成分如下表:牌号化学成份/%Mn Si C P SⅠⅡⅢ≤FeMn64Si27 60.0~67.0 25.0~28.0 0.5 0.10 0.15 0.25 0.04FeMn67Si23 63.0~70.0 22.0~25.0 0.7 0.10 0.15 0.25 0.04FeMn68Si22 65.0~72.0 20.0~23.0 1.2 0.10 0.15 0.25 0.04FeMn64Si23 60.0~67.0 20.0~25.0 1.2 0.10 0.15 0.25 0.04FeMn68Si18 65.0~72.0 17.0~22.0 1.8 0.10 0.15 0.25 0.04FeMn64Si18 60.0~67.0 17.0~20.0 1.8 0.10 0.15 0.25 0.04FeMn68Si16 65.0~72.0 14.0~17.0 2.5 0.10 0.15 0.25 0.04FeMn64Si16 60.0~67.0 14.0~17.0 2.5 0.20 0.25 0.30 0.05冶金工业对锰矿石的质量要求用于炼钢生铁、含锰生铁、镜铁的矿石,铁含量不受限制,矿石中锰和铁的总含量最好能达到40%~50%。
钢牌号与化学成分
1、普通碳素结构钢牌号及化学成分:C Si Mn P S Q1950.06~0.120.12~0.300.25~0.50≤0.045≤0.050Q215A 0.09~0.150.12~0.300.25~0.55≤0.045≤0.050Q315B 0.09~0.150.12~0.300.25~0.55≤0.045≤0.045Q235A0.14~0.220.12~0.300.30~0.65≤0.045≤0.050Q335B 0.12~0.200.12~0.300.30~0.70≤0.045≤0.045Q235C ≤0.180.12~0.300.35~0.80≤0.040≤0.040Q235D ≤0.170.12~0.300.35~0.80≤0.030≤0.030Q255A 0.18~0.280.12~0.300.40~0.70≤0.045≤0.050Q255B 0.18~0.280.12~0.300.40~0.70≤0.045≤0.045Q2750.28~0.380.15~0.350.5~0.80≤0.045≤0.050CSi Mn P S Cr Ni Cu GB/T69908F 0.05~0.11≤0.030.25~0.500.0350.0350.10.30.25GB/T69910F 0.07~0.13≤0.070.25~0.500.0350.0350.150.30.25GB/T69915F 0.12~0.18≤0.070.25~0.500.0350.0350.250.30.25GB/T69980.05~0.110.17~0.370.35~0.650.0350.0350.10.30.25GB/T699100.07~0.130.17~0.370.35~0.650.0350.0350.150.30.25GB/T699150.12~0.180.17~0.370.35~0.650.0350.0350.250.30.25GB/T699200.17~0.230.17~0.370.35~0.650.0350.0350.250.30.25GB/T699250.22~0.290.17~0.370.50~0.800.0350.0350.250.30.25GB/T699300.27~0.340.17~0.370.50~0.800.0350.0350.250.30.25GB/T699350.32~0.390.17~0.370.50~0.800.0350.0350.250.30.25GB/T699400.37~0.440.17~0.370.50~0.800.0350.0350.250.30.25GB/T699450.42~0.500.17~0.370.50~0.800.0350.0350.250.30.25GB/T699500.47~0.550.17~0.370.50~0.800.0350.0350.250.30.25GB/T699550.52~0.600.17~0.370.50~0.800.0350.0350.250.30.25GB/T699600.57~0.650.17~0.370.50~0.800.0350.0350.250.30.25GB/T699650.62~0.700.17~0.370.50~0.800.0350.0350.250.30.25GB/T699700.67~0.750.17~0.370.50~0.800.0350.0350.250.30.25GB/T699750.72~0.800.17~0.370.50~0.800.0350.0350.250.30.25GB/T699800.77~0.850.17~0.370.50~0.800.0350.0350.250.30.252、优质碳素结构钢牌号及化学成分:钢牌号及化学成分执行标准牌号化学成分(%)执行标准牌号化学成分(%)GB700-1988GB/T699850.82~0.900.17~0.370.50~0.800.0350.0350.30.25GB/T699Mn150.12~0.180.17~0.370.70~1.000.0350.0350.30.25GB/T699Mn200.17~0.230.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn250.22~0.290.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn300.27~0.340.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn350.32~0.390.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn400.37~0.440.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn450.42~0.500.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn500.48~0.560.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn600.57~0.650.17~0.370.70~1.000.0350.0350.250.30.25GB/T699Mn650.62~0.700.17~0.370.90~1.200.0350.0350.250.30.25GB/T699Mn700.67~0.750.17~0.370.90~1.200.0350.0350.250.30.25C Si P S Cr NiAL ≤≥GB/T1591Q295A 0.160.80~1.500.550.0450.0450.02~0.150.015~0.0600.02~0.20GB/T1591Q395B 0.160.80~1.500.550.040.040.02~0.150.015~0.0600.02~0.20GB/T1591Q345A 0.20.10~1.600.550.0450.0450.02~0.150.015~0.0600.02~0.20GB/T1591Q345B 0.20.10~1.600.550.040.040.02~0.150.02~0.200.02~0.20GB/T1591Q345C 0.20.10~1.600.550.0350.0350.02~0.150.02~0.200.02~0.200.015GB/T1591Q345D 0.180.10~1.600.550.030.030.02~0.150.02~0.200.02~0.200.015GB/T1591Q345E 0.180.10~1.600.550.0250.0250.02~0.150.02~0.200.02~0.200.015GB/T1591Q345A 0.20.10~1.600.550.0450.0450.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390B 0.20.10~1.600.550.040.040.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390C 0.20.10~1.600.550.0350.0350.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390D 0.20.10~1.600.550.030.030.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390E 0.20.10~1.600.550.0250.0250.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420A 0.2 1.00~1.700.550.0450.0450.70.02~0.200.02~0.200.02~0.20GB/T1591Q420B 0.2 1.00~1.700.550.040.040.70.02~0.200.02~0.200.02~0.20GB/T1591Q420C 0.2 1.00~1.700.550.0350.0350.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420D 0.18 1.00~1.700.550.030.030.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460D 0.2 1.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460E 0.21.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.0154、合金机构钢牌号及化学成分3、低合金高度结构钢号及化学成分:执行标准牌号化学成分(%)Mn V Nb Ti≤(1)、锰合金机构钢牌号及化学成分:P S Cr Ni Cu GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307740Mn20.37~0.440.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307750Mn20.47~0.550.17~0.37 1.40~1.800.0350.0350.30.30.3(2)、锰钒合金结构钢牌号及化学成分:GB/T1591Q345B 0.20.10~1.600.550.040.040.02~0.150.02~0.200.02~0.20GB/T1591Q345C 0.20.10~1.600.550.0350.0350.02~0.150.02~0.200.02~0.200.015GB/T1591Q345D 0.180.10~1.600.550.030.030.02~0.150.02~0.200.02~0.200.015GB/T1591Q345E 0.180.10~1.600.550.0250.0250.02~0.150.02~0.200.02~0.200.015GB/T1591Q345A 0.20.10~1.600.550.0450.0450.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390B 0.20.10~1.600.550.040.040.30.70.02~0.200.02~0.200.02~0.20GB/T1591Q390C 0.20.10~1.600.550.0350.0350.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390D 0.20.10~1.600.550.030.030.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q390E 0.20.10~1.600.550.0250.0250.30.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420A 0.2 1.00~1.700.550.0450.0450.70.02~0.200.02~0.200.02~0.20GB/T1591Q420B 0.2 1.00~1.700.550.040.040.70.02~0.200.02~0.200.02~0.20GB/T1591Q420C 0.2 1.00~1.700.550.0350.0350.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420D 0.18 1.00~1.700.550.030.030.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.40.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460D 0.2 1.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015GB/T1591Q460E 0.21.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.015P S Cr Ni Cu GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307740Mn20.37~0.440.17~0.371.40~1.800.0350.0350.30.30.34、合金机构钢牌号及化学成分执行标准牌号化学成分(%)(1)、锰合金机构钢牌号及化学成分:≤Mn Si C 执行标准牌号化学成分(%)C Si Mn ≤GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.30.30.3GB/T307750Mn20.47~0.550.17~0.371.40~1.800.0350.0350.30.30.3Mn P S Cr Ni ≤GB/T307720MnV 1.70~0.24 1.70~0.371.30~1.600.0350.0350.30.30.07~0.12P SCr Ni GB/T307727SiMn 0.24~0.32 1.10~1.40 1.10~1.400.0350.0350.30.3GB/T307735SiMn 0.32~0.40 1.10~1.40 1.10~1.400.0350.0350.3GB/T307742SiMn 0.39~0.45 1.10~1.401.10~1.400.0350.0350.3Mn P S Cr Ni Mo≤GB/T307720SiMn2MoV 0.17~0.230.90~1.20 2.20~2.600.0350.0350.30.30.30~0.400.05~0.12GB/T307825SiMn3MoV 0.22~0.280.90~1.20 2.20~2.600.0350.0350.30.30.30~0.400.05~0.12Mn P S Cr Ni≤GB/T307740B 0.37~0.440.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035GB/T307745B 0.42~0.490.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035GB/T307750B 0.47~0.550.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035Mn P S Cr Ni ≤GB/T307740MnB 0.37~0.440.17~0.37 1.10~1.400.0350.0350.30.30.0005~0.0035GB/T307745MnB 0.42~0.490.17~0.371.10~1.400.0350.0350.30.30.0005~0.0035Mn P S Cr Ni执行标准牌号化学成分(%)C SiV (3)、硅锰合金结构钢牌号及化学成分执行标准牌号化学成分(%)C Si Mn ≤(4)、硅锰钼矾合金结构钢牌号及化学成分执行标准牌号化学成分(%)C SiV GB/T3078 37SiMn3MoV 0.33~0.39 0.90~1.20 1.60~1.90 0.035 0.035 0.3 0.3 0.3 0.40~0.50 0.05~0.12(5)、硼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si B(6)、锰硼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C SiB(7)、锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C SiB(2)、锰钒合金结构钢牌号及化学成分:≤GB/T307720MnMoB 0.16~0.220.17~0.370.60~0.900.0350.0350.30.30.0005~0.0035Mn P S Cr Ni ≤GB/T307715MnVB 0.12~0.180.17~0.37 1.20~1.600.0350.0350.30.30.07~0.0120.0005~0.0035GB/T307720MnVB 0.17~0.230.17~0.37 1.10~1.400.0350.0350.30.30.07~0.0120.0005~0.0035GB/T307740MnVB 0.37~0.440.17~0.371.30~1.500.0350.0350.30.30.07~0.0120.0005~0.0035Mn P S Cr Ni V BRE ≤ ≤GB/T307720MnTiB 0.17~0.240.17~0.37 1.30~1.500.0350.0350.30.30.04~0.100.0005~0.0035GB/T307725MnTiBRE 0.22~0.280.20~0.451.30~1.600.0350.0350.30.30.04~0.100.0005~0.00350.05P SNi Cu GB/T307715Cr 0.12~0.180.17~0.370.40~0.700.70~1.000.0350.0350.30.3GB/T307715CrA 0.12~0.170.17~0.370.40~0.700.70~1.000.0250.0250.30.3GB/T307720Cr 0.18~0.240.17~0.370.50~0.800.70~1.000.0350.0350.30.3GB/T307730Cr 0.27~0.340.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307735Cr 0.32~0.390.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307740Cr 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307745Cr 0.42~0.490.17~0.370.50~0.800.80~1.100.0350.0350.30.3GB/T307750Cr 0.47~0.540.17~0.370.50~0.700.80~1.100.0350.0350.30.3P SNi Cu GB/T307712CrMo 0.80~0.120.17~0.370.40~0.700.40~0.700.40~0.550.0350.0350.30.3GB/T307715CrMo 0.12~0.180.17~0.370.40~0.700.80~1.100.40~0.550.0350.0350.30.3GB/T307720CrMo 0.17~0.240.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3GB/T307730CrMo 0.26~0.340.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3GB/T307730CrMoA 0.26~0.330.17~0.370.40~0.700.80~1.100.15~0.250.0250.0250.30.3GB/T307735CrMo0.32~0.400.17~0.370.40~0.700.80~1.100.15~0.250.0350.0350.30.3执行标准牌号C SiB(8)、锰矾硼合金机构钢牌号及化学成分:执行标准牌号化学成分(%)C SiV BMn Cr (9)、锰钛合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Si Mn Cr Mo(10)、钼铬金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si ≤(11)、铬硅合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C ≤GB/T307742CrMo 0.38~0.450.17~0.370.50~0.800.90~1.200.15~0.250.0350.0350.30.3P SNiCuGB/T307742CrSi 0.35~0.43 1.00~1.300.30~0.601.30~1.600.0350.0350.30.3P SNiCu VGB/T307712CrMoV 0.08~0.150.17~0.370.40~0.700.30~0.600.25~0.350.0350.0350.30.30.15~0.30GB/T307735CrMoV 0.30~0.380.17~0.370.40~0.70 1.00~1.300.20~0.300.0350.0350.30.30.10~0.20GB/T307712Cr1MoV 0.08~0.150.17~0.370.40~0.700.90~1.200.25~0.350.0350.0350.30.30.15~0.30GB/T307725Cr2MoVA 0.22~0.290.17~0.370.40~0.70 1.50~1.800.25~0.350.0250.0250.30.30.15~0.30GB/T307725Cr2Mo1VA 0.22~0.290.17~0.370.50~0.802.10~2.500.90~1.100.0250.0250.30.30.30~0.50P SNiCu A1GB/T307738CrMoVA10.35~0.420.20~0.450.30~0.601.35~1.650.15~0.250.0350.0350.30.30.70~1.10P SNi Cu GB/T307740CrV 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.0350.30.30.10~0.20GB/T307750CrVA 0.47~0.540.17~0.370.50~0.800.80~1.100.0250.0250.30.30.10~0.20P SNi Cu GB/T307715CrMn 0.12~0.180.17~0.37 1.10~1.400.40~0.700.0350.0350.30.3GB/T307720CrMn 0.17~0.230.17~0.370.90~1.200.90~1.200.0250.0250.30.3GB/T307742CrMn 0.37~0.450.17~0.370.90~1.200.90~1.200.0350.0350.30.3P SNi CuSi Mn Cr ≤Mn Cr Mo≤(12)、铬钼合金结构钢号及化学成分:执行标准牌号化学成分(%)C Mn Cr Mo≤(13)、铬钼矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr V (14)、铬钼铝合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Si Mn Cr (15)、铬矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiC Si Mn Cr≤(16)、铬锰合金结构钢号及化学成分:执行标准牌号化学成分(%)C ≤≤(17)、铬锰硅合金结构钢号及化学成分:执行标准牌号化学成分(%)GB/T307720CrMnSi 0.17~0.230.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307725CrMnSi 0.22~0.280.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307730CrMnSi 0.27~0.340.90~1.200.80~1.100.80~1.100.0350.0350.30.3GB/T307731CrMnSiA 0.28~0.340.90~1.200.80~1.100.80~1.100.0250.0250.30.3GB/T307732CrMnSiA 0.32~0.39 1.10~1.400.80~1.101.10~1.400.0250.0250.30.3P SNi Cu GB/T307720CrMoNo 0.17~0.230.17~0.370.90~1.20 1.10~1.400.20~0.300.0350.0350.30.3GB/T307740CrMoNo 0.37~0.440.17~0.370.90~1.200.90~1.200.20~0.300.0350.0350.30.3P S Cu GB/T307720CrNi 0.17~0.230.17~0.370.40~0.700.45~0.75 1.00~1.400.0350.0350.30.80~1.100.80~1.10GB/T307740CrNi 0.37~0.440.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.30.80~1.100.80~1.10GB/T307745CrNi 0.42~0.490.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.3GB/T307750CrNi 0.47~0.540.17~0.370.50~0.800.45~0.75 1.00~1.400.0350.0350.3GB/T307712CrNi20.10~0.170.17~0.370.30~0.600.60~0.90 1.50~1.900.0350.0350.3GB/T307712CrNi30.10~0.170.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307720CrNi30.17~0.240.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307730CrNi30.27~0.330.17~0.370.30~0.600.60~0.90 2.75~3.150.0350.0350.3GB/T307737CrNi30.34~0.410.17~0.370.30~0.60 1.20~1.60 3.00~3.500.0350.0350.3GB/T307712CrNi40.10~0.160.17~0.370.30~0.60 1.25~1.65 3.25~3.650.0350.0350.3GB/T307720CrNi40.17~0.230.17~0.370.30~0.601.25~1.65 3.25~3.650.0350.0350.3P S Cu Ni GB/T307720CrMnTi 0.17~0.230.17~0.370.80~1.10 1.00~1.300.04~0.100.0350.0350.30.3GB/T307730CrMnTi 0.24~0.320.17~0.370.80~1.101.00~1.300.04~0.100.0350.0350.30.3P S CuGB/T307720CrNiMo0.17~0.230.17~0.370.60~0.950.40~0.700.35~0.750.20~0.300.0350.0350.3(18)、铬锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Mo≤(19)、铬镍合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ni≤(20)、铬锰钛合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ti≤(21)、铬镍钼合金结构钢号及化学成分:执行标准牌号化学成分(%)C Si Mn Cr Ni Mo≤GB/T307721CrNiMoA 0.37~0.440.17~0.370.50~0.800.60~0.90 1.25~1.650.15~0.250.0250.0250.3P S CuGB/T307718CrNiMnMoA 0.15~0.210.17~0.37 1.10~1.401.00~1.30 1.00~1.300.20~0.300.0250.0250.3P S CuGB/T307718CrNiMoVA 0.42~0.480.17~0.370.50~0.800.80~1.10 1.30~1.800.20~0.300.10~0.200.0250.0250.3P S CuGB/T307718Cr2Ni4WA 0.13~0.190.17~0.370.30~0.60 1.35~1.65 4.00~4.500.80~1.200.0250.0250.3GB/T307725Cr2Ni4WA 0.21~0.280.17~0.370.30~0.601.35~1.65 4.00~4.500.80~1.200.0250.0250.3P S CuGB/T521645H 0.42~0.500.17~0.370.50~0.85≤0.25≤0.300.0350.0350.25GB/T521615CrH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.300.0350.0350.3GB/T521620CrH 0.17~0.230.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521620CrLH 0.17~0.230.17~0.370.55~0.900.85~1.25≤0.300.0350.0350.3GB/T521640CrH 0.37~0.440.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521620CrH 0.42~0.490.17~0.370.50~0.850.70~1.10≤0.300.0350.0350.3GB/T521616CrMnH 0.14~0.19≤0.37 1.00~1.300.80~1.10≤0.300.0350.0350.3GB/T521620CrMnH 0.17~0.22≤0.37 1.10~1.40 1.00~1.30≤0.300.0350.0350.3GB/T521615CrMnBh 0.13~0.180.17~0.37 1.00~1.300.80~1.10≤0.300.0005~0.00300.0350.0350.3GB/T521617CrMnBh 0.15~0.200.17~0.37 1.00~1.30 1.00~1.35≤0.300.0005~0.00300.0350.0350.3GB/T521640MnBH 0.37~0.440.17~0.37 1.00~1.40≤0.30≤0.300.0005~0.00300.0350.0350.3GB/T521645MnBH 0.42~0.490.17~0.37 1.00~1.40≤0.30≤0.300.0005~0.00300.0350.0350.3GB/T521620MnVBH 0.17~0.230.17~0.37 1.05~1.45≤0.30≤0.30V=0.07~0.120.0005~0.00300.0350.0350.3GB/T521620MnTiBH 0.17~0.230.17~0.37 1.20~1.55≤0.30≤0.30Ti=0.04~0.100.0005~0.00300.0350.0350.3GB/T521615CrMoH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3GB/T521620CrMoH0.17~0.230.17~0.371.10~1.480.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3(22)、铬镍锰钼合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMn CrNiV≤Mo≤(23)、铬镍钼矾合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMn CrNiWNiMo Mn CrSi Mn Cr Ni (24)、铬镍钨合金结构钢牌号及化学成分:执行标准牌号化学成分(%)CSiMo、Ti、V B≤≤5、保证淬透性结构钢(H钢)牌号及化学成分:执行标准牌号化学成分(%)CGB/T521622CrMoH 0.19~0.250.17~0.37 1.10~1.490.85~1.25≤0.30Mo=0.35~0.450.0350.0350.3GB/T521644CrMoH 0.37~0.440.17~0.37 1.10~1.500.85~1.25≤0.30Mo=0.15~0.250.0350.0350.3GB/T521620CrMnMoH 0.17~0.230.17~0.37 1.10~1.51 1.05~1.40≤0.30Mo=0.20~0.300.0350.0350.3GB/T521620CrMnTiH 0.17~0.230.17~0.37 1.10~1.52 1.00~1.35≤0.30Ti=0.04~0.100.0350.0350.3GB/T521647CrNi3H 0.17~0.230.17~0.37 1.10~1.530.60~0.95 2.70~3.250.0350.0350.3GB/T521647Cr2Ni4H 0.10~0.170.17~0.37 1.10~1.54 1.20~1.75 3.20~3.750.0350.0350.3GB/T521620CrNiMoH 0.17~0.230.17~0.37 1.10~1.550.35~0.650.35~0.75Mo=0.15~0.250.0350.0350.3GB/T521620CrNi2MoH 0.17~0.230.17~0.37 1.10~1.560.35~0.65 1.55~2.00Mo=0.20~0.300.0350.0350.36、易切削结构钢牌号及化学成分:C Si MnPSPbGB/T8731Y120.08~0.160.15~0.350.70~1.000.08~0.150.10~0.20GB/T8731Y12Pb 0.08~0.16≤0.150.70~1.000.05~0.100.15~0.250.15~0.35GB/T8731Y150.10~0.18≤0.150.80~1.200.05~0.100.23~0.33GB/T8731Y15pb 0.10~0.19≤0.150.80~1.200.05~0.100.23~0.330.15~0.35GB/T8731Y200.17~0.250.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y300.27~0.350.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y350.32~0.400.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y40Mn 0.37~0.450.15~0.35 1.20~1.55≤0.0500.20~0.30GB/T8731Y45Ca 0.42~0.500.20~0.400.60~0.90≤0.900.04~0.08Ca=0.15~0.357、冷墩和冷压用钢牌号及化学成分:(1)、非热处理型冷墩和冷挤压用钢牌号及化学成分:Si P S Cu Ni CrALt≤≥GB/T6478ML04ML ≤0.060.10.20~0.400.0350.0350.200.200.20.02GB/T6478ML08AL 0.05~0.100.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML10AL 0.08~0.130.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML15AL 0.13~0.180.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML15AL 0.13~0.180.15~0.350.30~0.600.0350.0350.200.200.2GB/T6478ML20AL 0.18~0.230.10.30~0.600.0350.0350.200.200.20.02GB/T6478ML200.18~0.230.15~0.350.30~0.600.0350.0350.200.200.2(2)、表面硬化型冷墩和冷挤压用钢牌号及化学成分:Si P S Cu Ni CrALt ≤≥GB/T6478ML18Mn0.15~0.200.10.60~0.900.0350.0350.200.200.20.02执行标准牌号化学成分(%)执行标准牌号化学成分(%)CMn≤执行标准牌号化学成分(%)C Mn≤GB/T6478ML22Mn 0.18~0.230.10.70~1.000.0350.0350.200.200.20.02GB/T6478ML20Cr 0.17~0.230.30.60~0.900.0350.0350.200.200.90~1.200.02(3)、调质型冷镦和冷挤压用钢牌号及化学成分:ALt P S NiCu ≥GB/T6478ML250.22~0.29≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML300.27~0.34≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML350.32~0.39≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML400.37~0.44≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML450.42~0.50≤0.200.30~0.60≤0.200.0350.0350.020.02GB/T6478ML15Mn 0.14~0.200.20~0.400.20~0.40≤0.200.0350.0350.020.02GB/T6478ML25Mn 0.22~0.29≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML30Mn 0.27~0.34≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML35Mn 0.32~0.39≤0.250.60~0.90≤0.200.0350.0350.020.02GB/T6478ML37Cr 0.34~0.41≤0.300.60~0.900.90~1.200.0350.0350.020.02GB/T6478ML40Cr 0.38~0.45≤0.300.60~0.900.90~1.200.0350.0350.020.02GB/T6478ML30CrMo 0.26~0.34≤0.300.60~0.900.15~0.250.80~1.100.0350.0350.020.02GB/T6478ML35CrMo 0.32~0.40≤0.300.60~0.900.15~0.250.80~1.100.0350.0350.020.02GB/T6478ML42CrMo 0.38~0.45≤0.300.60~0.900.15~0.250.90~1.200.0350.0350.020.02GB/T6478ML20B 0.17~0.24≤0.400.50~0.800.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML28B 0.25~0.32≤0.400.60~0.900.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML35B 0.32~0.39≤0.400.50~0.800.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML15MnB 0.14~0.20≤0.40 1.20~1.600.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML20MnB 0.17~0.24≤0.400.80~1.200.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML35MnB 0.32~0.39≤0.40 1.10~1.400.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML37CrB 0.34~0.41≤0.400.50~0.800.0005~0.00350.20~0.400.020.0350.0350.020.02GB/T6478ML20MnTiB 0.19~0.24≤0.30 1.30~1.600.04~0.100.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML15VMnB 0.13~0.18≤0.30 1.20~1.600.07~0.120.0005~0.0035≤0.200.020.0350.0350.020.02GB/T6478ML20VMnB 0.19~0.24≤0.301.20~1.600.07~0.120.0005~0.0035≤0.200.020.0350.0350.020.028、高耐侯结构钢牌号及化学成分表:化学成分(%)C SiMnPS Cr Ni CuTi RE ≤≤GB/T4171Q295GNH 0.25~0.500.20~0.400.20~0.600.07~0.150.0350.25~0.550.10.15GB/T4171Q295GNHL 0.120.10~0.400.20~0.500.07~0.120.0350.30~0.650.25~0.500.25~0.451GB/T4171Q345GNH 0.120.20~0.600.50~0.900.07~0.120.0350.25~0.500.030.15执行标准牌号化学成分(%)C Si Mn Mo.Ti.V B Cr≤执行标准牌号≤GB/T4171Q345GNHL 0.120.25~0.750.20~0.500.07~0.120.0350.30~1.25≤0.650.25~0.55GB/T4171Q390GH 0.120.15~0.65≤1.40≤0.0350.0350.45~0.750.05~0.300.25~0.500.10.129、焊接结构用耐钢牌号及化学成分类:C SiMnP S Cr V CuNiGB/T4172Q235NH ≤0.150.15~0.400.20~0.600.0350.0350.40~0.800.02~0.50GB/T4172Q295NH ≤0.150.15~0.50 1.00~1.600.0350.0350.40~0.800.02~0.50GB/T4172Q355NH ≤0.16≤0.500.90~1.000.0350.0350.40~0.800.02~0.100.02~0.50GB/T4172Q460NH 0.10~0.18≤0.500.90~1.000.0350.0350.40~0.800.02~0.50PSCrNiCuGB/T122265钢0.62~0.700.17~0.370.50~0.800.0350.0350.250.250.25GB/T122270钢0.62~0.750.17~0.370.50~0.800.0350.0350.250.250.25GB/T122285钢0.82~0.900.17~0.370.50~0.800.0350.0350.250.250.25GB/T122265Mn 0.62~0.700.17~0.370.90~1.20.0350.0350.250.25(2)、合金弹簧钢牌号及化学成分:P SNiCu GB/T122255Si2Mn 0.52~0.60 1.50~2.000.60~0.90≤0.350.0350.0350.350.25GB/T122255si2MnB 0.52~0.60 1.50~2.000.60~0.900.0005~0.004≤0.350.0350.0350.350.25GB/T122255siMnVB 0.52~0.600.70~1.00 1.00~1.300.08~0.100.0005~0.0035≤0.350.0350.0350.350.25GB/T122260si2Mn 0.56~0.64 1.50~2.000.60~0.90≤0.350.0350.0350.350.25GB/T122260si2MnA 0.56~0.64 1.60~2.000.60~0.90≤0.300.030.0350.350.25GB/T122260si2CrA 0.56~0.64 1.40~1.800.40~0.600.70~1.000.030.030.350.25GB/T122260si2CrVA 0.56~0.64 1.40~1.800.40~0.600.10~0.200.90~1.200.030.030.350.25GB/T122255CrMnA 0.50~0.600.17~0.370.65~0.950.65~0.950.030.030.350.25GB/T122260CrMnA 0.56~0.640.17~0.370.70~1.000.70~1.000.030.030.350.25GB/T122260CrMnMoA 0.56~0.640.17~0.370.70~1.000.25~0.350.70~0.900.030.030.350.25GB/T122250CrVA 0.46~0.640.17~0.370.50~0.800.10~0.200.80~1.100.030.030.350.25GB/T122260CrMnBA 0.56~0.640.17~0.370.70~1.000.0005~0.0040.70~1.000.030.030.350.25GB/T122230W4Cr2VA 0.26~0.340.17~0.37≤0.400.50~0.80 4.00~4.502.00~2.500.030.030.350.2511、高碳铬轴承钢牌号及化学成分表:Si Mn ≤执行标准牌号化学成分(%)V W、Mo、B Cr≤10、弹簧钢牌号及化学成分表:(1)、优质碳素弹簧钢号及化学成分表:执行标准牌号化学成分(%)C执行标准牌号化学成分(%)C Si Mn 化学成分(%)模连GB/T18254GCr40.95~1.050.15~0.300.15~0.30≤0.080.35~0.500.0250.0250.250.215×1012×10GB/T18255GCrl50.95~1.050.15~0.350.25~0.45≤0.10 1.40~1.500.0250.0250.30.2515×1012×10GB/T18256GCrl5SiMn 0.95~1.050.45~0.750.95~1.25≤0.10 1.40~1.650.0250.0250.30.2515×1012×10GB/T18257GCrl5SiMn 0.95~1.050.65~0.850.20~0.400.30~0.40 1.40~1.700.0270.020.30.2515×1012×10GB/T18258GCrl8Mo 0.95~1.050.20~0.400.25~0.400.15~0.251.65~1.950.0250.020.250.2515×1012×10二、不绣钢、耐热钢牌号及化学成分:1、不绣钢牌号及化学成分:(1)、奥氏体不绣钢牌号及化学成分:C SiMnP SCu ≤GB/T12201Cr17Mn6Ni5N0.1515.50~0.060.0316.00~18.003.50~5.50≤0.250.27.5GB/T12201Cr18Mn8Ni5N 0.15 1.007.50~10.000.060.0317.00~19.004.00~6.00≤0.250.2 2.80~3.50GB/T12201Cr18Mn10Ni5Mo30.1 1.008.50~12.000.060.0317.00~19.004.00~6.000.20~0.300.2GB/T12201Cr17Ni70.15 1.00 2.000.0350.0316.00~18.006.00~8.000.2GB/T12201Ce18Ni90.15 1.00 2.000.0350.0317.00~19.008.00~10.000.2≤0.60GB/T1220Y1Cr18Ni90.15 1.00 2.000.2 ≥0.1517.00~19.008.00~10.000.2Se≥0.15GB/T1220Y1Cr18Ni9Se 0.15 1.00 2.000.20.0617.00~19.008.00~10.000.2GB/T12200Cr18Ni90.07 1.00 2.000.0350.0317.00~19.008.00~11.000.2GB/T122000Cr19Ni100.03 1.00 2.000.0350.0318.00~20.008.00~12.000.2GB/T12200Cr19Ni9N 0.08 1.00 2.000.0350.03518.00~20.007.00~10.500.10~0.250.2GB/T12200Cr19Ni10NbN 0.08 1.00 2.000.0350.0318.00~20.007.50~10.500.15~0.300.2Nb≤0.15GB/T122000Cr18Ni10N 0.03 1.00 2.000.0350.0317.00~29.008.50~11.500.12~0.220.2GB/T12201Cr18Ni120.12 1.00 2.000.0350.0317.00~19.0010.50~13.000.2GB/T12200Cr23Ni130.08 1.00 2.000.0350.0322.00~24.0012.00~15.000.2GB/T12200Cr25Ni200.08 1.00 2.000.0350.0324.00~26.0019.00~22.000.2GB/T12200Cr17Ni12Mo20.08 1.00 2.000.0350.0316.00~18.5010.00~14.000.2 2.00~3.00GB/T12201Cr17Ni12Mo2Ti 0.12 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 1.80~2.50Ti=5×(c-0.02)~0.80GB/T12200Cr17Ni12Mo2Ti 0.08 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 1.80~2.50Ti=5×C~0.70GB/T122000Cr17Ni14Mo20.03 1.00 2.000.0350.0316.00~18.0012.00~15.000.2 2.00~3.00GB/T12200Cr17Ni12Mo2N 0.08 1.00 2.000.0350.0316.00~18.0010.00~14.000.10~0.220.2 2.00~3.00GB/T12200Cr17Ni13Mo2N 0.03 1.00 2.000.0350.0316.00~18.0010.50~14.500.12~0.220.2 2.00~3.00GB/T12200Cr18Ci12Mo2Cu20.081.002.000.0350.0317.00~19.0010.00~14.501.00~2.501.20~2.75Mo Cr P S NiCuO≤执行标准牌号C Si Mn N Mo 其它≤执行标准牌号Cr NiGB/T122000Crl8Ni4Mo2Cu20.03 1.00 2.000.0350.0317.00~19.0012.00~16.00 1.00~2.501.20~2.75GB/T12200Cr19Ni13Mo30.08 1.00 2.000.0350.0318.00~20.0011.00~15.000.23.00~4.00GB/T122000Cr19Ni13Mo30.03 1.00 2.000.0350.0318.00~20.0011.00~15.000.2 3.00~4.00GB/T12201Crl8Nil2Mo3Ti 0.12 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 2.50~3.50Ti=5×(c-0.02)~0.80GB/T12200Cr18Ni12Mo3Ti 0.08 1.00 2.000.0350.0316.00~19.0011.00~14.000.2 2.50~3.50Ti=5×C~0.70GB/T12200Cr18Ni12Mo50.04 1.00 2.000.0350.0316.00~19.0015.00~17.000.2 4.00~6.00GB/T12201Crl8Ni9Ti 0.12 1.00 2.000.0350.0317.00~19.008.00~11.000.2Ti=5×(c-0.02)~0.80GB/T12200Cr18Ni10Ti 0.08 1.00 2.000.0350.0317.00~19.009.00~12.000.2Ti ≥5×C GB/T12200Crl8NillNb 0.08 1.00 2.000.0350.0317.00~19.009.00~13.000.2Nb≤10×CGB/T12200Crl8Ni9Cu30.08 1.00 2.000.0350.0317.00~19.008.50~10.50 3.00~4.00GB/T12200Crl8Ni13Si40.08 3.00~5.002.000.0350.0315.00~20.0011.50~15.000.2(2)、奥氏体——铁素体不锈钢牌号及化学成分:C SiMn P S Cu ≤GB/T12200Cr26NiMo20.08 1.00 1.500.0350.0323.00~28.003.00~6.00 1.00~3.000.2GB/T12201Cr18NillSi4A 0.10~0.18 3.40~4.000.800.0350.0317.50~19.5010.00~12.000.20.10~0.300.40~0.70GB/T122000Cr18Ni5Mo3S 0.03 2.001.00~2.000.0350.0318.00~19.004.50~5.50 2.50~3.000.2(3)铁素体不锈钢牌号及化学成分:C SiMn P S NiCu 其它GB/T12200Cr13AL 0.08 1.001.000.0350.0311.50~14.500.600.200.10~0.30GB/T122000Cr120.03 1.00 1.000.0350.0311.00~13.000.600.20GB/T12201Cr170.120.75 1.000.0350.0316.00~18.000.600.20GB/T1220Y1Cr170.12 1.00 1.250.06≥0.1516.00~18.00≤0.600.600.20GB/T12201Cr17Mo 0.12 1.00 1.000.0350.0316.00~18.000.75~1.250.600.20GB/T122000Cr30Mo20.100.400.400.030.0228.50~32.001.50~2.500.600.20GB/T122000Cr27Mo 0.100.400.400.030.0225.00~27.500.75~1.500.600.20Ni+Cu≤0.50(4)、马氏体不锈钢钢牌号及化学成分:执行标准牌号CSi Mn P S Cu GB/T1220≤GB/T12201Cr120.150.5 1.000.0350.0311.50~13.00≤0.600.20GB/T12201Cr130.15 1.00 1.000.0350.0311.50~13.50≤0.600.20GB/T12200Cr130.08 1.00 1.000.0350.0311.50~13.50≤0.600.20GB/T1220Y1Cr130.151.001.250.06≥0.1512.00~14.00≤0.60≤0.600.20Ni MoAl Ti执行标准牌号化学成分(%)Cr ≤MoAl ≤≤执行标准牌号化学成分(%)Cr 化学成分(%)Cr Ni MoVGB/T12201Cr13Mo 0.08~0.180.6 1.000.0350.0311.50~14.00≤0.600.30~0.600.20GB/T12202Cr130.16~0.25 1.00 1.000.0350.0312.00~14.00≤0.600.20GB/T12203Cr130.26~0.35 1.00 1.000.0350.0312.00~14.00≤0.600.20GB/T1220Y3Cr130.26~0.40 1.00 1.250.06≥0.1512.00~14.00≤0.60≤0.600.20GB/T12203Cr13Mo 0.28~0.350.8 1.000.0350.0312.00~14.00≤0.600.50~1.000.20GB/T12204Cr130.36~0.450.60.800.0350.03≤0.600.20GB/T12201Cr17Ni20.11~0.170.80.800.0350.03 1.50~2.500.20GB/T12207Cr170.60~0.75 1.00 1.000.0350.03≤0.60≤0.750.20GB/T12208Cr170.75~0.95 1.00 1.000.0350.03≤0.60≤0.750.20GB/T12209Cr180.90~1.000.8 1.250.0350.03≤0.60≤0.750.20GB/T122011Cr170.95~1.20 1.00 1.000.0350.03≤0.60≤0.750.20GB/T1220Y11Cr170.95~1.20 1.00 1.000.035≥0.15≤0.60≤0.750.20GB/T12209Cr18Mo 0.95~1.100.80.80.0350.03≤0.600.40~0.700.20GB/T12209Cr18MoV 0.85~0.950.80.80.0350.04≤0.60 1.00~1.300.20.07~0.12(4)沉淀硬化型不锈钢牌号及化学成分:C SiMnPSMo CuNbAlGB/T12200Cr17Ni4Cu4nb 0.07 1.00 1.000.0350.0315.50~17.503.00~5.00 3.00~5.000.15~0.45GB/T12200Cr17Ni7Al 0.09 1.00 1.000.0350.0316.00~18.006.50~7.750.2GB/T12200Cr15Ni7Mo2Al 0.091.001.000.0350.0314.00~16.006.50~7.503.00~5.000.250.75~1.502、耐热钢牌号及化学成分:0.75~1.50(1)、奥氏体不绣钢牌号及化学成分:P SGB/T12215Cr21Mn9Ni4N 0.48~0.580.358.00~1.000.040.03020.00~22.00 3.25~4.500.35~0.50GB/T12212Cr21Ni12N 0.15~0.280.75~1.25 1.00~1.600.0350.03020.00~22.0010.50~12.500.15~0.30GB/T12212Cr23Ni12N 0.201.002.000.0350.03022.00~24.0012.00~15.00GB/T12212Cr25Ni200.25 1.50 2.000.0350.03024.00~26.0019.00~22.00GB/T12211Cr16Ni350.151.502.000.0350.03014.00~17.0033.00~37.00GB/T1221Cr15Ni25Ti2MoAlV 0.081.002.000.0350.03013.50~16.0024.00~27.00V=0.10~0.50Mo=1.00~1.50Al≤0.35Ti=1.90~2.35B=0.001~0.010GB/T12210r18Ni90.07 1.00 2.000.0350.03017.00~19.008.00~11.00GB/T12210Cr23Ni130.08 1.00 2.000.0350.03022.00~24.0012.00~15.00GB/T12210Cr25Ni200.08 1.50 2.000.0350.03024.00~26.0019.00~22.00Si Mn 执行标准牌号化学成分(%)Cr Ni≤Cr Ni ≤执行标准牌号化学成分(%)C N、V、B、A1、W Mo、Nb、Ti。
钢牌号及化学成分
一、结构钢牌号及化学成分1、普通碳素结构钢牌号及化学成分:CSiMnPSQ1950.06~0.120.12~0.300.25~0.50≤0.045≤0.050Q215A 0.09~0.150.12~0.300.25~0.55≤0.045≤0.050Q315B 0.09~0.150.12~0.300.25~0.55≤0.045≤0.045Q235A 0.14~0.220.12~0.300.30~0.65≤0.045≤0.050Q335B 0.12~0.200.12~0.300.30~0.70≤0.045≤0.045Q235C ≤0.180.12~0.300.35~0.80≤0.040≤0.040Q235D ≤0.170.12~0.300.35~0.80≤0.030≤0.030Q255A 0.18~0.280.12~0.300.40~0.70≤0.045≤0.050Q255B 0.18~0.280.12~0.300.40~0.70≤0.045≤0.045Q2750.28~0.380.15~0.350.5~0.80≤0.045≤0.050CSi Mn PS Cr GB/T69908F 0.05~0.11≤0.030.25~0.500.0350.0350.1GB/T69910F 0.07~0.13≤0.070.25~0.500.0350.0350.15GB/T69915F 0.12~0.18≤0.070.25~0.500.0350.0350.25GB/T69980.05~0.110.17~0.370.35~0.650.0350.0350.1GB/T699100.07~0.130.17~0.370.35~0.650.0350.0350.15GB/T699150.12~0.180.17~0.370.35~0.650.0350.0350.25GB/T699200.17~0.230.17~0.370.35~0.650.0350.0350.25GB/T699250.22~0.290.17~0.370.50~0.800.0350.0350.25GB/T699300.27~0.340.17~0.370.50~0.800.0350.0350.25GB/T699350.32~0.390.17~0.370.50~0.800.0350.0350.25GB/T699400.37~0.440.17~0.370.50~0.800.0350.0350.25牌号牌号执行标准GB700-1988执行标准钢牌号及化学成分化学成分(%)2、优质碳素结构钢牌号及化学成分:化学成分(%)GB/T699450.42~0.500.17~0.370.50~0.800.0350.0350.25GB/T699500.47~0.550.17~0.370.50~0.800.0350.0350.25GB/T699550.52~0.600.17~0.370.50~0.800.0350.0350.25GB/T699600.57~0.650.17~0.370.50~0.800.0350.0350.25GB/T699650.62~0.700.17~0.370.50~0.800.0350.0350.25GB/T699700.67~0.750.17~0.370.50~0.800.0350.0350.25GB/T699750.72~0.800.17~0.370.50~0.800.0350.0350.25GB/T699800.77~0.850.17~0.370.50~0.800.0350.0350.25GB/T699850.82~0.900.17~0.370.50~0.800.0350.035GB/T699Mn150.12~0.180.17~0.370.70~1.000.0350.035GB/T699Mn200.17~0.230.17~0.370.70~1.000.0350.035GB/T699Mn250.22~0.290.17~0.370.70~1.000.0350.0350.25GB/T699Mn300.27~0.340.17~0.370.70~1.000.0350.0350.25GB/T699Mn350.32~0.390.17~0.370.70~1.000.0350.0350.25GB/T699Mn400.37~0.440.17~0.370.70~1.000.0350.0350.25GB/T699Mn450.42~0.500.17~0.370.70~1.000.0350.0350.25GB/T699Mn500.48~0.560.17~0.370.70~1.000.0350.0350.25GB/T699Mn600.57~0.650.17~0.370.70~1.000.0350.0350.25GB/T699Mn650.62~0.700.17~0.370.90~1.200.0350.0350.25GB/T699Mn700.67~0.750.17~0.370.90~1.200.0350.0350.25C Si P S Cr≤GB/T1591Q295A 0.160.80~1.500.550.0450.045GB/T1591Q395B 0.160.80~1.500.550.040.04GB/T1591Q345A 0.20.10~1.600.550.0450.045GB/T1591Q345B 0.20.10~1.600.550.040.04GB/T1591Q345C 0.20.10~1.600.550.0350.035GB/T1591Q345D0.180.10~1.600.550.030.03牌号执行标准≤Mn 3、低合金高度结构钢号及化学成分:化学成分(%)GB/T1591Q345E 0.180.10~1.600.550.0250.025GB/T1591Q345A 0.20.10~1.600.550.0450.0450.3GB/T1591Q390B 0.20.10~1.600.550.040.040.3GB/T1591Q390C 0.20.10~1.600.550.0350.0350.3GB/T1591Q390D 0.20.10~1.600.550.030.030.3GB/T1591Q390E 0.20.10~1.600.550.0250.0250.3GB/T1591Q420A 0.2 1.00~1.700.550.0450.045GB/T1591Q420B 0.2 1.00~1.700.550.040.04GB/T1591Q420C 0.2 1.00~1.700.550.0350.035GB/T1591Q420D 0.18 1.00~1.700.550.030.030.4GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.4GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.7GB/T1591Q460D 0.2 1.00~1.700.550.030.030.7GB/T1591Q460E 0.2 1.00~1.700.550.030.030.7(1)、锰合金机构钢牌号及化学成分:P S Cr GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.3GB/T307740Mn20.37~0.440.17~0.37 1.40~1.800.0350.0350.3GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.3GB/T307750Mn20.47~0.550.17~0.37 1.40~1.800.0350.0350.3(2)、锰钒合金结构钢牌号及化学成分:GB/T1591Q345B 0.20.10~1.600.550.040.04GB/T1591Q345C 0.20.10~1.600.550.0350.035GB/T1591Q345D 0.180.10~1.600.550.030.03GB/T1591Q345E0.180.10~1.600.550.0250.025Mn C 牌号执行标准4、合金机构钢牌号及化学成分化学成分(%)≤SiGB/T1591Q345A 0.20.10~1.600.550.0450.0450.3GB/T1591Q390B 0.20.10~1.600.550.040.040.3GB/T1591Q390C 0.20.10~1.600.550.0350.0350.3GB/T1591Q390D 0.20.10~1.600.550.030.030.3GB/T1591Q390E 0.20.10~1.600.550.0250.0250.3GB/T1591Q420A 0.2 1.00~1.700.550.0450.045GB/T1591Q420B 0.2 1.00~1.700.550.040.04GB/T1591Q420C 0.2 1.00~1.700.550.0350.035GB/T1591Q420D 0.18 1.00~1.700.550.030.030.4GB/T1591Q420E 0.18 1.00~1.700.550.0250.0250.4GB/T1591Q460C 0.2 1.00~1.700.550.0350.0350.7GB/T1591Q460D 0.2 1.00~1.700.550.030.030.7GB/T1591Q460E 0.2 1.00~1.700.550.030.030.7P S Cr GB/T307720Mn20.17~0.240.17~0.37 1.40~1.800.0350.0350.3GB/T307730Mn20.27~0.340.17~0.37 1.40~1.800.0350.0350.3GB/T307735Mn20.32~0.390.17~0.37 1.40~1.800.0350.0350.3GB/T307740Mn20.37~0.440.17~0.37 1.40~1.800.0350.0350.3GB/T307745Mn20.42~0.490.17~0.37 1.40~1.800.0350.0350.3GB/T307750Mn20.47~0.550.17~0.371.40~1.800.0350.0350.3Mn P S Cr ≤GB/T307720MnV 1.70~0.24 1.70~0.371.30~1.600.0350.0350.3Mn CC牌号牌号执行标准化学成分(%)≤(2)、锰钒合金结构钢牌号及化学成分:化学成分(%)(3)、硅锰合金结构钢牌号及化学成分执行标准Si Si 4、合金机构钢牌号及化学成分(1)、锰合金机构钢牌号及化学成分:P SGB/T307727SiMn 0.24~0.32 1.10~1.40 1.10~1.400.0350.035GB/T307735SiMn 0.32~0.40 1.10~1.40 1.10~1.400.0350.035GB/T307742SiMn 0.39~0.45 1.10~1.401.10~1.400.0350.035MnP S Cr ≤GB/T307720SiMn2MoV 0.17~0.230.90~1.20 2.20~2.600.0350.0350.3GB/T307825SiMn3MoV 0.22~0.280.90~1.20 2.20~2.600.0350.0350.3Mn P S Cr≤GB/T307740B 0.37~0.440.17~0.370.60~0.900.0350.0350.3GB/T307745B 0.42~0.490.17~0.370.60~0.900.0350.0350.3GB/T307750B 0.47~0.550.17~0.370.60~0.900.0350.0350.3Mn P S Cr≤GB/T307740MnB 0.37~0.440.17~0.37 1.10~1.400.0350.0350.3GB/T307745MnB 0.42~0.490.17~0.37 1.10~1.400.0350.0350.3Mn P S Cr≤Mn Si SiSiSiSiC CC C C 牌号牌号牌号(6)、锰硼合金结构钢牌号及化学成分:化学成分(%)(7)、锰钼合金结构钢牌号及化学成分:化学成分(%)执行标准执行标准牌号≤(4)、硅锰钼矾合金结构钢牌号及化学成分化学成分(%)GB/T3078 37SiMn3MoV 0.33~0.39 0.90~1.20 1.60~1.90 0.035 0.035 0.3 0.3 0.3 0.40~0.50 0.05~0.12(5)、硼合金结构钢牌号及化学成分:化学成分(%)执行标准执行标准执行标准牌号化学成分(%)GB/T307720MnMoB 0.16~0.220.17~0.370.60~0.900.0350.0350.3Mn P S Cr ≤GB/T307715MnVB 0.12~0.180.17~0.37 1.20~1.600.0350.0350.3GB/T307720MnVB 0.17~0.230.17~0.37 1.10~1.400.0350.0350.3GB/T307740MnVB 0.37~0.440.17~0.371.30~1.500.0350.0350.3Mn P S Cr ≤GB/T307720MnTiB 0.17~0.240.17~0.37 1.30~1.500.0350.0350.3GB/T307725MnTiBRE0.22~0.280.20~0.451.30~1.600.0350.0350.3P SGB/T307715Cr 0.12~0.180.17~0.370.40~0.700.70~1.000.0350.035GB/T307715CrA 0.12~0.170.17~0.370.40~0.700.70~1.000.0250.025GB/T307720Cr 0.18~0.240.17~0.370.50~0.800.70~1.000.0350.035GB/T307730Cr 0.27~0.340.17~0.370.50~0.800.80~1.100.0350.035GB/T307735Cr 0.32~0.390.17~0.370.50~0.800.80~1.100.0350.035GB/T307740Cr 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.035GB/T307745Cr 0.42~0.490.17~0.370.50~0.800.80~1.100.0350.035GB/T307750Cr0.47~0.540.17~0.370.50~0.700.80~1.100.0350.035P MoCr CrMn MnSi CC C C牌号牌号牌号牌号化学成分(%)执行标准Si(9)、锰钛合金结构钢牌号及化学成分:化学成分(%)(10)、钼铬金结构钢牌号及化学成分:化学成分(%)≤(11)、铬硅合金结构钢牌号及化学成分:执行标准执行标准Si Si (8)、锰矾硼合金机构钢牌号及化学成分:化学成分(%)执行标准GB/T307712CrMo 0.80~0.120.17~0.370.40~0.700.40~0.700.40~0.550.035GB/T307715CrMo 0.12~0.180.17~0.370.40~0.700.80~1.100.40~0.550.035GB/T307720CrMo 0.17~0.240.17~0.370.40~0.700.80~1.100.15~0.250.035GB/T307730CrMo 0.26~0.340.17~0.370.40~0.700.80~1.100.15~0.250.035GB/T307730CrMoA 0.26~0.330.17~0.370.40~0.700.80~1.100.15~0.250.025GB/T307735CrMo 0.32~0.400.17~0.370.40~0.700.80~1.100.15~0.250.035GB/T307742CrMo0.38~0.450.17~0.370.50~0.800.90~1.200.15~0.250.035P SGB/T307742CrSi 0.35~0.43 1.00~1.300.30~0.601.30~1.600.0350.035P GB/T307712CrMoV 0.08~0.150.17~0.370.40~0.700.30~0.600.25~0.350.035GB/T307735CrMoV 0.30~0.380.17~0.370.40~0.70 1.00~1.300.20~0.300.035GB/T307712Cr1MoV 0.08~0.150.17~0.370.40~0.700.90~1.200.25~0.350.035GB/T307725Cr2MoVA 0.22~0.290.17~0.370.40~0.70 1.50~1.800.25~0.350.025GB/T307725Cr2Mo1VA 0.22~0.290.17~0.370.50~0.802.10~2.500.90~1.100.025P GB/T307738CrMoVA10.35~0.420.20~0.450.30~0.601.35~1.650.15~0.250.035PSMo Mo CrCr Cr Cr Mn Mn Mn MnSi Si SiCCCC牌号化学成分(%)≤执行标准牌号化学成分(%)(14)、铬钼铝合金结构钢号及化学成分:化学成分(%)(15)、铬矾合金结构钢牌号及化学成分:执行标准执行标准牌号牌号(12)、铬钼合金结构钢号及化学成分:化学成分(%)≤(13)、铬钼矾合金结构钢牌号及化学成分:执行标准SiGB/T307740CrV 0.37~0.440.17~0.370.50~0.800.80~1.100.0350.035GB/T307750CrVA 0.47~0.540.17~0.370.50~0.800.80~1.100.0250.025P SGB/T307715CrMn 0.12~0.180.17~0.37 1.10~1.400.40~0.700.0350.035GB/T307720CrMn 0.17~0.230.17~0.370.90~1.200.90~1.200.0250.025GB/T307742CrMn 0.37~0.450.17~0.370.90~1.200.90~1.200.0350.035P SGB/T307720CrMnSi 0.17~0.230.90~1.200.80~1.100.80~1.100.0350.035GB/T307725CrMnSi 0.22~0.280.90~1.200.80~1.100.80~1.100.0350.035GB/T307730CrMnSi 0.27~0.340.90~1.200.80~1.100.80~1.100.0350.035GB/T307731CrMnSiA 0.28~0.340.90~1.200.80~1.100.80~1.100.0250.025GB/T307732CrMnSiA 0.32~0.39 1.10~1.400.80~1.101.10~1.400.0250.025P GB/T307720CrMoNo 0.17~0.230.17~0.370.90~1.20 1.10~1.400.20~0.300.035GB/T307740CrMoNo 0.37~0.440.17~0.370.90~1.200.90~1.200.20~0.300.035P GB/T307720CrNi 0.17~0.230.17~0.370.40~0.700.45~0.75 1.00~1.400.035GB/T307740CrNi0.37~0.440.17~0.370.50~0.800.45~0.751.00~1.400.035Mo Ni Cr Cr Cr Cr Mn Mn Mn Mn Si Si Si Si CCCC 化学成分(%)执行标准牌号化学成分(%)≤(18)、铬锰钼合金结构钢牌号及化学成分:化学成分(%)(19)、铬镍合金结构钢号及化学成分:执行标准执行标准牌号牌号(16)、铬锰合金结构钢号及化学成分:化学成分(%)≤(17)、铬锰硅合金结构钢号及化学成分:执行标准牌号GB/T307745CrNi 0.42~0.490.17~0.370.50~0.800.45~0.75 1.00~1.400.035GB/T307750CrNi 0.47~0.540.17~0.370.50~0.800.45~0.75 1.00~1.400.035GB/T307712CrNi20.10~0.170.17~0.370.30~0.600.60~0.90 1.50~1.900.035GB/T307712CrNi30.10~0.170.17~0.370.30~0.600.60~0.90 2.75~3.150.035GB/T307720CrNi30.17~0.240.17~0.370.30~0.600.60~0.90 2.75~3.150.035GB/T307730CrNi30.27~0.330.17~0.370.30~0.600.60~0.90 2.75~3.150.035GB/T307737CrNi30.34~0.410.17~0.370.30~0.60 1.20~1.60 3.00~3.500.035GB/T307712CrNi40.10~0.160.17~0.370.30~0.60 1.25~1.65 3.25~3.650.035GB/T307720CrNi40.17~0.230.17~0.370.30~0.60 1.25~1.65 3.25~3.650.035P GB/T307720CrMnTi 0.17~0.230.17~0.370.80~1.10 1.00~1.300.04~0.100.035GB/T307730CrMnTi 0.24~0.320.17~0.370.80~1.101.00~1.300.04~0.100.035GB/T307720CrNiMo 0.17~0.230.17~0.370.60~0.950.40~0.700.35~0.750.20~0.30GB/T307721CrNiMoA 0.37~0.440.17~0.370.50~0.800.60~0.901.25~1.650.15~0.25GB/T307718CrNiMnMoA 0.15~0.210.17~0.371.10~1.401.00~1.301.00~1.300.20~0.30Mo Mo MoNiTi Ni Ni Cr Cr CrCr MnMn Mn Mn Si Si Si SiCCCC化学成分(%)执行标准牌号化学成分(%)(22)、铬镍锰钼合金结构钢牌号及化学成分:化学成分(%)(23)、铬镍钼矾合金结构钢牌号及化学成分:执行标准执行标准牌号牌号(20)、铬锰钛合金结构钢号及化学成分:化学成分(%)(21)、铬镍钼合金结构钢号及化学成分:执行标准牌号GB/T307718CrNiMoVA 0.42~0.480.17~0.370.50~0.800.80~1.10 1.30~1.800.20~0.30GB/T307718Cr2Ni4WA 0.13~0.190.17~0.370.30~0.60 1.35~1.65 4.00~4.500.80~1.20GB/T307725Cr2Ni4WA 0.21~0.280.17~0.370.30~0.601.35~1.654.00~4.500.80~1.20GB/T521645H 0.42~0.500.17~0.370.50~0.85≤0.25≤0.30GB/T521615CrH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.30GB/T521620CrH 0.17~0.230.17~0.370.50~0.850.70~1.10≤0.30GB/T521620CrLH 0.17~0.230.17~0.370.55~0.900.85~1.25≤0.30GB/T521640CrH 0.37~0.440.17~0.370.50~0.850.70~1.10≤0.30GB/T521620CrH 0.42~0.490.17~0.370.50~0.850.70~1.10≤0.30GB/T521616CrMnH 0.14~0.19≤0.37 1.00~1.300.80~1.10≤0.30GB/T521620CrMnH 0.17~0.22≤0.37 1.10~1.40 1.00~1.30≤0.30GB/T521615CrMnBh 0.13~0.180.17~0.37 1.00~1.300.80~1.10≤0.30GB/T521617CrMnBh 0.15~0.200.17~0.37 1.00~1.30 1.00~1.35≤0.30GB/T521640MnBH 0.37~0.440.17~0.37 1.00~1.40≤0.30≤0.30GB/T521645MnBH 0.42~0.490.17~0.37 1.00~1.40≤0.30≤0.30GB/T521620MnVBH 0.17~0.230.17~0.37 1.05~1.45≤0.30≤0.30V=0.07~0.12GB/T521620MnTiBH 0.17~0.230.17~0.37 1.20~1.55≤0.30≤0.30Ti=0.04~0.10GB/T521615CrMoH 0.12~0.180.17~0.370.55~0.900.85~1.25≤0.30Mo=0.15~0.25GB/T521620CrMoH 0.17~0.230.17~0.37 1.10~1.480.85~1.25≤0.30Mo=0.15~0.25GB/T521622CrMoH 0.19~0.250.17~0.37 1.10~1.490.85~1.25≤0.30Mo=0.35~0.45GB/T521644CrMoH 0.37~0.440.17~0.37 1.10~1.500.85~1.25≤0.30Mo=0.15~0.25GB/T521620CrMnMoH0.17~0.230.17~0.371.10~1.511.05~1.40≤0.30Mo=0.20~0.30W Mo、Ti、VNi Ni Cr Cr Mn Mn Si CC 牌号执行标准化学成分(%)Si (24)、铬镍钨合金结构钢牌号及化学成分:化学成分(%)5、保证淬透性结构钢(H钢)牌号及化学成分:执行标准牌号GB/T521620CrMnTiH 0.17~0.230.17~0.37 1.10~1.52 1.00~1.35≤0.30Ti=0.04~0.10GB/T521647CrNi3H 0.17~0.230.17~0.37 1.10~1.530.60~0.95 2.70~3.25GB/T521647Cr2Ni4H 0.10~0.170.17~0.37 1.10~1.54 1.20~1.75 3.20~3.75GB/T521620CrNiMoH 0.17~0.230.17~0.37 1.10~1.550.35~0.650.35~0.75Mo=0.15~0.25GB/T521620CrNi2MoH0.17~0.230.17~0.37 1.10~1.560.35~0.65 1.55~2.00Mo=0.20~0.306、易切削结构钢牌号及化学成分:CSi Mn PSPbGB/T8731Y120.08~0.160.15~0.350.70~1.000.08~0.150.10~0.20GB/T8731Y12Pb 0.08~0.16≤0.150.70~1.000.05~0.100.15~0.250.15~0.35GB/T8731Y150.10~0.18≤0.150.80~1.200.05~0.100.23~0.33GB/T8731Y15pb 0.10~0.19≤0.150.80~1.200.05~0.100.23~0.330.15~0.35GB/T8731Y200.17~0.250.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y300.27~0.350.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y350.32~0.400.15~0.350.70~1.00≤0.0600.08~0.15GB/T8731Y40Mn 0.37~0.450.15~0.35 1.20~1.55≤0.0500.20~0.30GB/T8731Y45Ca0.42~0.500.20~0.400.60~0.90≤0.900.04~0.08Ca=0.15~0.357、冷墩和冷压用钢牌号及化学成分:(1)、非热处理型冷墩和冷挤压用钢牌号及化学成分:Si P S Cu ≤GB/T6478ML04ML ≤0.060.10.20~0.400.0350.0350.20GB/T6478ML08AL 0.05~0.100.10.30~0.600.0350.0350.20GB/T6478ML10AL 0.08~0.130.10.30~0.600.0350.0350.20GB/T6478ML15AL 0.13~0.180.10.30~0.600.0350.0350.20GB/T6478ML15AL 0.13~0.180.15~0.350.30~0.600.0350.0350.20GB/T6478ML20AL 0.18~0.230.10.30~0.600.0350.0350.20GB/T6478ML200.18~0.230.15~0.350.30~0.600.0350.0350.20(2)、表面硬化型冷墩和冷挤压用钢牌号及化学成分:Mn牌号牌号执行标准执行标准化学成分(%)化学成分(%)≤CSi P S Cu ≤GB/T6478ML18Mn 0.15~0.200.10.60~0.900.0350.0350.20GB/T6478ML22Mn 0.18~0.230.10.70~1.000.0350.0350.20GB/T6478ML20Cr 0.17~0.230.30.60~0.900.0350.0350.20(3)、调质型冷镦和冷挤压用钢牌号及化学成分:GB/T6478ML250.22~0.29≤0.200.30~0.60≤0.20GB/T6478ML300.27~0.34≤0.200.30~0.60≤0.20GB/T6478ML350.32~0.39≤0.200.30~0.60≤0.20GB/T6478ML400.37~0.44≤0.200.30~0.60≤0.20GB/T6478ML450.42~0.50≤0.200.30~0.60≤0.20GB/T6478ML15Mn 0.14~0.200.20~0.400.20~0.40≤0.20GB/T6478ML25Mn 0.22~0.29≤0.250.60~0.90≤0.20GB/T6478ML30Mn 0.27~0.34≤0.250.60~0.90≤0.20GB/T6478ML35Mn 0.32~0.39≤0.250.60~0.90≤0.20GB/T6478ML37Cr 0.34~0.41≤0.300.60~0.900.90~1.20GB/T6478ML40Cr 0.38~0.45≤0.300.60~0.900.90~1.20GB/T6478ML30CrMo 0.26~0.34≤0.300.60~0.900.15~0.250.80~1.10GB/T6478ML35CrMo 0.32~0.40≤0.300.60~0.900.15~0.250.80~1.10GB/T6478ML42CrMo 0.38~0.45≤0.300.60~0.900.15~0.250.90~1.20GB/T6478ML20B 0.17~0.24≤0.400.50~0.800.0005~0.0035≤0.20GB/T6478ML28B 0.25~0.32≤0.400.60~0.900.0005~0.0035≤0.20GB/T6478ML35B 0.32~0.39≤0.400.50~0.800.0005~0.0035≤0.20GB/T6478ML15MnB 0.14~0.20≤0.40 1.20~1.600.0005~0.0035≤0.20GB/T6478ML20MnB 0.17~0.24≤0.400.80~1.200.0005~0.0035≤0.20GB/T6478ML35MnB0.32~0.39≤0.401.10~1.400.0005~0.0035≤0.20Cr B Mo.Ti.V MnMnSi牌号牌号执行标准执行标准≤化学成分(%)CC化学成分(%)GB/T6478ML37CrB 0.34~0.41≤0.400.50~0.800.0005~0.00350.20~0.40GB/T6478ML20MnTiB 0.19~0.24≤0.30 1.30~1.600.04~0.100.0005~0.0035≤0.20GB/T6478ML15VMnB 0.13~0.18≤0.30 1.20~1.600.07~0.120.0005~0.0035≤0.20GB/T6478ML20VMnB0.19~0.24≤0.30 1.20~1.600.07~0.120.0005~0.0035≤0.208、高耐侯结构钢牌号及化学成分表:化学成分(%)C Si Mn PS Cr≤≤GB/T4171Q295GNH 0.25~0.500.20~0.400.20~0.600.07~0.150.035GB/T4171Q295GNHL 0.120.10~0.400.20~0.500.07~0.120.0350.30~0.65GB/T4171Q345GNH 0.120.20~0.600.50~0.900.07~0.120.035GB/T4171Q345GNHL 0.120.25~0.750.20~0.500.07~0.120.0350.30~1.25GB/T4171Q390GH0.120.15~0.65≤1.40≤0.0350.0350.45~0.759、焊接结构用耐钢牌号及化学成分类:CSiMnP S Cr GB/T4172Q235NH ≤0.150.15~0.400.20~0.600.0350.0350.40~0.80GB/T4172Q295NH ≤0.150.15~0.50 1.00~1.600.0350.0350.40~0.80GB/T4172Q355NH ≤0.16≤0.500.90~1.000.0350.0350.40~0.80GB/T4172Q460NH0.10~0.18≤0.500.90~1.000.0350.0350.40~0.80PS CrGB/T122265钢0.62~0.700.17~0.370.50~0.800.0350.0350.25GB/T122270钢0.62~0.750.17~0.370.50~0.800.0350.0350.25GB/T122285钢0.82~0.900.17~0.370.50~0.800.0350.0350.25GB/T122265Mn0.62~0.700.17~0.370.90~1.20.0350.0350.25(2)、合金弹簧钢牌号及化学成分:MnSi C牌号执行标准(1)、优质碳素弹簧钢号及化学成分表:化学成分(%)≤执行标准牌号化学成分(%)10、弹簧钢牌号及化学成分表:执行标准牌号GB/T122255Si2Mn 0.52~0.60 1.50~2.000.60~0.90≤0.35GB/T122255si2MnB 0.52~0.60 1.50~2.000.60~0.900.0005~0.004≤0.35GB/T122255siMnVB 0.52~0.600.70~1.00 1.00~1.300.08~0.100.0005~0.0035≤0.35GB/T122260si2Mn 0.56~0.64 1.50~2.000.60~0.90≤0.35GB/T122260si2MnA 0.56~0.64 1.60~2.000.60~0.90≤0.30GB/T122260si2CrA 0.56~0.64 1.40~1.800.40~0.600.70~1.00GB/T122260si2CrVA 0.56~0.64 1.40~1.800.40~0.600.10~0.200.90~1.20GB/T122255CrMnA 0.50~0.600.17~0.370.65~0.950.65~0.95GB/T122260CrMnA 0.56~0.640.17~0.370.70~1.000.70~1.00GB/T122260CrMnMoA 0.56~0.640.17~0.370.70~1.000.25~0.350.70~0.90GB/T122250CrVA 0.46~0.640.17~0.370.50~0.800.10~0.200.80~1.10GB/T122260CrMnBA 0.56~0.640.17~0.370.70~1.000.0005~0.0040.70~1.00GB/T122230W4Cr2VA 0.26~0.340.17~0.37≤0.400.50~0.804.00~4.50 2.00~2.5011、高碳铬轴承钢牌号及化学成分表:GB/T18254GCr40.95~1.050.15~0.300.15~0.30≤0.080.35~0.500.025GB/T18255GCrl50.95~1.050.15~0.350.25~0.45≤0.10 1.40~1.500.025GB/T18256GCrl5SiMn 0.95~1.050.45~0.750.95~1.25≤0.10 1.40~1.650.025GB/T18257GCrl5SiMn 0.95~1.050.65~0.850.20~0.400.30~0.40 1.40~1.700.027GB/T18258GCrl8Mo 0.95~1.050.20~0.400.25~0.400.15~0.251.65~1.950.025二、不绣钢、耐热钢牌号及化学成分:1、不绣钢牌号及化学成分:(1)、奥氏体不绣钢牌号及化学成分:CrP W、Mo、BCr VMo MnMnSi Si CC 牌号牌号牌号执行标准化学成分(%)化学成分(%)执行标准执行标准CSiMn P SGB/T12201Cr17Mn6Ni5N0.1515.50~0.060.0316.00~18.007.5GB/T12201Cr18Mn8Ni5N 0.15 1.007.50~10.000.060.0317.00~19.00GB/T12201Cr18Mn10Ni5Mo30.1 1.008.50~12.000.060.0317.00~19.00GB/T12201Cr17Ni70.15 1.00 2.000.0350.0316.00~18.00GB/T12201Ce18Ni90.15 1.00 2.000.0350.0317.00~19.00GB/T1220Y1Cr18Ni90.15 1.00 2.000.2 ≥0.1517.00~19.00GB/T1220Y1Cr18Ni9Se0.15 1.00 2.000.20.0617.00~19.00GB/T12200Cr18Ni9(SUS304)0.07 1.00 2.000.0350.0317.00~19.00GB/T122000Cr19Ni100.03 1.00 2.000.0350.0318.00~20.00GB/T12200Cr19Ni9N 0.08 1.00 2.000.0350.03518.00~20.00GB/T12200Cr19Ni10NbN 0.08 1.00 2.000.0350.0318.00~20.00GB/T122000Cr18Ni10N 0.03 1.00 2.000.0350.0317.00~29.00GB/T12201Cr18Ni120.12 1.00 2.000.0350.0317.00~19.00GB/T12200Cr23Ni130.08 1.00 2.000.0350.0322.00~24.00GB/T12200Cr25Ni200.08 1.00 2.000.0350.0324.00~26.00GB/T12200Cr17Ni12Mo20.08 1.00 2.000.0350.0316.00~18.50GB/T12201Cr17Ni12Mo2Ti 0.12 1.00 2.000.0350.0316.00~19.00GB/T12200Cr17Ni12Mo2Ti0.08 1.00 2.000.0350.0316.00~19.00GB/T122000Cr17Ni14Mo2(316L)0.03 1.00 2.000.0350.0316.00~18.00GB/T12200Cr17Ni12Mo2N 0.08 1.00 2.000.0350.0316.00~18.00GB/T12200Cr17Ni13Mo2N 0.03 1.00 2.000.0350.0316.00~18.00GB/T12200Cr18Ci12Mo2Cu20.08 1.00 2.000.0350.0317.00~19.00GB/T122000Crl8Ni4Mo2Cu20.03 1.00 2.000.0350.0317.00~19.00GB/T12200Cr19Ni13Mo30.08 1.00 2.000.0350.0318.00~20.00GB/T122000Cr19Ni13Mo30.03 1.00 2.000.0350.0318.00~20.00GB/T12201Crl8Nil2Mo3Ti 0.12 1.00 2.000.0350.0316.00~19.00GB/T12200Cr18Ni12Mo3Ti0.081.002.000.0350.0316.00~19.00Cr牌号执行标准≤GB/T12200Cr18Ni12Mo50.04 1.00 2.000.0350.0316.00~19.00GB/T12201Crl8Ni9Ti 0.12 1.00 2.000.0350.0317.00~19.00GB/T12200Cr18Ni10Ti 0.08 1.00 2.000.0350.0317.00~19.00GB/T12200Crl8NillNb 0.08 1.00 2.000.0350.0317.00~19.00GB/T12200Crl8Ni9Cu30.08 1.00 2.000.0350.0317.00~19.00GB/T12200Crl8Ni13Si40.08 3.00~5.00 2.000.0350.0315.00~20.00(2)、奥氏体——铁素体不锈钢牌号及化学成分:CSi MnP S GB/T12200Cr26NiMo20.08 1.00 1.500.0350.0323.00~28.00GB/T12201Cr18NillSi4AlTi 0.10~0.183.40~4.000.800.0350.0317.50~19.50GB/T122000Cr18Ni5Mo3Si20.032.00 1.00~2.000.0350.0318.00~19.00(3)铁素体不锈钢牌号及化学成分:C Si Mn P S GB/T12200Cr13AL 0.08 1.00 1.000.0350.0311.50~14.50GB/T122000Cr120.03 1.00 1.000.0350.0311.00~13.00GB/T12201Cr170.120.75 1.000.0350.0316.00~18.00GB/T1220Y1Cr170.12 1.00 1.250.06≥0.1516.00~18.00GB/T12201Cr17Mo 0.12 1.00 1.000.0350.0316.00~18.00GB/T122000Cr30Mo20.100.400.400.030.0228.50~32.00GB/T122000Cr27Mo0.100.400.400.030.0225.00~27.50(4)、马氏体不锈钢钢牌号及化学成分:执行标准牌号CSi Mn P S GB/T1220GB/T12201Cr120.150.5 1.000.0350.0311.50~13.00GB/T12201Cr130.151.001.000.0350.0311.50~13.50CrCr Cr 牌号牌号执行标准执行标准≤化学成分(%)化学成分(%)≤化学成分(%)GB/T12200Cr130.08 1.00 1.000.0350.0311.50~13.50GB/T1220Y1Cr130.15 1.00 1.250.06≥0.1512.00~14.00GB/T12201Cr13Mo 0.08~0.180.6 1.000.0350.0311.50~14.00GB/T12202Cr130.16~0.25 1.00 1.000.0350.0312.00~14.00GB/T12203Cr130.26~0.35 1.00 1.000.0350.0312.00~14.00GB/T1220Y3Cr130.26~0.40 1.00 1.250.06≥0.1512.00~14.00GB/T12203Cr13Mo 0.28~0.350.8 1.000.0350.0312.00~14.00GB/T12204Cr130.36~0.450.60.800.0350.03≤0.60GB/T12201Cr17Ni20.11~0.170.80.800.0350.03 1.50~2.50GB/T12207Cr170.60~0.75 1.00 1.000.0350.03≤0.60GB/T12208Cr170.75~0.95 1.00 1.000.0350.03≤0.60GB/T12209Cr180.90~1.000.8 1.250.0350.03≤0.60GB/T122011Cr170.95~1.20 1.00 1.000.0350.03≤0.60GB/T1220Y11Cr170.95~1.20 1.00 1.000.035≥0.15≤0.60GB/T12209Cr18Mo 0.95~1.100.80.80.0350.03≤0.60GB/T12209Cr18MoV 0.85~0.950.80.80.0350.04≤0.60(4)沉淀硬化型不锈钢牌号及化学成分:CSiMn PS GB/T12200Cr17Ni4Cu4nb 0.07 1.00 1.000.0350.0315.50~17.50GB/T12200Cr17Ni7Al 0.09 1.00 1.000.0350.0316.00~18.00GB/T12200Cr15Ni7Mo2Al 0.091.001.000.0350.0314.00~16.002、耐热钢牌号及化学成分:(1)、奥氏体不绣钢牌号及化学成分:PS GB/T12215Cr21Mn9Ni4N 0.48~0.580.358.00~1.000.040.03020.00~22.00GB/T12212Cr21Ni12N0.15~0.280.75~1.251.00~1.600.0350.03020.00~22.00Cr Mn Si C牌号执行标准执行标准≤牌号化学成分(%)≤化学成分(%)CrGB/T12212Cr23Ni12N 0.20 1.00 2.000.0350.03022.00~24.00GB/T12212Cr25Ni200.25 1.50 2.000.0350.03024.00~26.00GB/T12211Cr16Ni350.15 1.50 2.000.0350.03014.00~17.00GB/T12210Cr15Ni25Ti2MoAlVB 0.08 1.00 2.000.0350.03013.50~16.00GB/T12210r18Ni90.07 1.00 2.000.0350.03017.00~19.00GB/T12210Cr23Ni130.08 1.00 2.000.0350.03022.00~24.00GB/T12210Cr25Ni200.08 1.50 2.000.0350.03024.00~26.00GB/T12210Cr17Ni12Mo20.08 1.00 2.000.0350.03016.00~18.00GB/T12214Cr14Ni14W2mo 0.40~0.500.80.70.0350.03013.00~15.00GB/T12213Cr18Mn12Si2N 0.22~0.30 1.40~2.2010.50~12.500.060.03017.00~19.00GB/T12212Cr20Mn19Ni2SiN 0.17~0.26 1.80~2.708.50~11.000.060.03018.00~21.00GB/T12210Cr19Ni13Mo30.08 1.00 2.000.0350.03018.00~20.00GB/T12211Cr18Ni9Ti 0.12 1.00 2.000.0350.03017.00~19.00GB/T12210Cr18Ni10Ti 0.08 1.00 2.000.0350.03017.00~19.00GB/T12210Cr18Ni11Nb 0.08 1.00 2.000.0350.03017.00~19.00GB/T12210Cr18Ni13Si40.08 3.00~5.00 2.000.0350.03015.00~20.00GB/T12211Cr20Ni14Si20.20 1.50~2.50 1.500.0350.03019.00~22.001Cr25Ni20Si20.201.50~2.50 1.500.0350.03024.00~27.00C Si Mn P S N GB/T12212Cr25N 0.2 1.00 1.50.040.030.25GB/T12210Cr120.08 1.00 1.000.040.03GB/T122100Cr120.03 1.00 1.000.040.03GB/T12211Cr170.120.75 1.000.040.03C Si Mn PSCr执行标准(2)、铁素体型耐热钢牌号及化学成分:化学成分(%)(3)、马氏体型耐热钢牌号及化学成分:化学成分(%)执行标准牌号牌号GB/T12211Cr5Mo GB/T12214Cr9Si20.150.50.60.0350.03GB/T12214Cr10Si2Mo 0.35~0.50 2.00~3.000.70.0350.03 4.00~6.00GB/T12218Cr20Si2Ni 0.35~0.50 1.90~2.600.70.0350.038.00~10.00GB/T12211Cr11MoV 0.75~0.85 1.75~2.250.20~0.600.0350.039.00~10.50GB/T12211Cr12Mo 0.11~0.180.50.60.0350.0319.00~20.50GB/T12212Cr12MoVBbN 0.10~0.150.50.30~0.500.0350.0310.00~11.50GB/T12211Cr12WMoV 0.15~0.200.50.50~1.000.0350.0311.50~13.00GB/T12212Cr12NiMoWV 0.12~0.180.50.50~0.700.0350.0310.00~13.00GB/T12211Cr130.20~0.250.50.50~1.000.0350.0311.00~13.00GB/T12211Cr13Mo 0.15 1.00 1.000.0350.0311.00~12.00GB/T12212Cr130.08~0.180.60 1.000.0350.0311.50~13.50GB/T12211Cr17Ni120.16~0.25 1.00 1.000.0350.0312.00~14.00GB/T12211Cr11Ni2W2MoV 0.11~0.170.80.80.0350.0316.00~18.00GB/T12211Cr11Ni2W2MoV 0.10~0.160.60.60.0350.0310.50~12.00C Si Mn PS GB/T12210Cr17Ni4Cu4Nb 0.07 1.00 1.000.0350.0315.50~17.50GB/T12210Cr17Ni7Al 0.091.001.000.0350.0316.00~18.001、碳素工具钢牌号及化学成分:化学成分(%)CSi MnP S Cr≤GB/T1298T70.65~0.74≤0.35≤0.400.0350.0300.25GB/T1298T80.75~0.84≤0.35≤0.400.0350.0300.25GB/T1298T8Mn 0.80~0.90≤0.350.40~0.600.0350.0300.25GB/T1298T90.85~0.94≤0.35≤0.400.0350.0300.25Cr Cr (4)、沉淀硬化物型耐热刚号及化学成分:化学成分(%)≤三、工具钢牌号及化学成分:≤执行标准执行标准牌号牌号≤GB/T1298T100.95~1.04≤0.35≤0.400.0350.0300.25GB/T1298T11 1.05~1.14≤0.35≤0.400.0350.0300.25GB/T1298T12 1.15~1.24≤0.35≤0.400.0350.0300.25GB/T1298T131.15~1.35≤0.35≤0.400.0350.0300.25P GB/T12999SiCr 0.85~0.95 1.20~1.600.30~0.600.95~1.250.030GB/T12998MnSi 0.75~0.850.30~0.600.60~0.800.030GB/T1299Cr06 1.30~1.45≤0.40≤0.400.50~0.700.030GB/T1299Cr20.95~1.10≤0.40≤0.40 1.30~1.650.030GB/T12999Cr20.80~0.95≤0.40≤0.40 1.30~1.700.030GB/T1299W1.05~1.25≤0.40≤0.400.10~0.300.80~1.200.030GB/T12994CrW2Si 0.35~0.450.80~1.10≤0.40 1.00~1.30 2.00~2.50GB/T12995CrW2Si 0.45~0.550.50~0.80≤0.40 1.00~1.30 2.00~2.50GB/T12996CrW2Si 0.55~0.650.50~0.80≤0.40 1.00~1.30 2.20~2.70GB/T12996CrMnSi2MolV 0.50~0.65 1.75~2.250.60~1.000.10~0.500.20~1.350.15~0.35GB/T12995Cr3Mn1SiMo1V 0.45~0.550.20~1.000.20~0.903.00~1.801.30~1.80≤0.35GB/T1299Cr12 2.00~2.30≤0.40≤0.4011.50~13.00GB/T1299Cr12Mo1V11.40~1.60≤0.40≤0.6011.00~13.000.50~1.10VV WW.Mo WCr Cr Cr Mn Mn Mn Si Si Si C C C (3)、冷作模具钢牌号及化学成分:化学成分(%)执行标准牌号(1)、量具刃具用钢牌号及化学成分:化学成分(%)(2)、耐冲击工具钢牌号及化学成分:化学成分(%)执行标准执行标准牌号牌号2、合金工具钢牌号及化学成分:GB/T1299Cr12MoV 1.45~1.70≤0.40≤0.4011.50~13.00GB/T1299Cr5Mo1V 0.95~1.05≤0.40≤0.50 4.75~5.500.15~0.50GB/T12999Mn2V 0.85~0.95≤0.40 1.70~2.000.10~0.20GB/T1299CrWMn 0.90~1.05≤0.400.80~1.100.90~1.20 1.20~1.60GB/T12999CrWMn 0.85~0.90≤0.400.90~1.200.50~0.800.50~10.80GB/T1299Cr4W2MoV 1.12~1.250.40~0.70≤0.40 3.50~4.00 1.90~2.600.80~1.10GB/T12996Cr4W3Mo2VNb 0.60~0.70≤0.40≤0.40 3.80~4.40 2.50~3.500.80~1.20GB/T12996W6Mo5Cr4V 0.55~0.65≤0.40≤0.60 3.70~4.30 6.00~7.000.70~1.10GB/T12997CrSiMnMoV 0.65~0.750.85~1.150.65~1.050.90~1.200.15~0.30GB/T12995CrMnMo 0.50~0.600.25~0.60 1.20~1.600.60~0.90GB/T12995CrNiMo 0.50~0.60≤0.400.50~0.800.50~0.80GB/T12993Cr2W8V 0.30~0.40≤0.40≤0.60 2.20~2.707.50~9.000.20~0.50GB/T12995Cr4Mo3SiMnVAl 0.47~0.570.80~1.100.80~1.10 3.80~4.300.80~1.20GB/T12993Cr3Mo3W2V 0.32~0.420.60~0.90≤0.65 2.80~3.30 1.20~1.800.80~1.20GB/T12995Cr4W5Mo2V 0.40~0.50≤0.40≤0.60 3.40~4.40 4.50~5.300.70~1.10GB/T12998Cr30.75~0.85≤0.40≤0.60 3.20~3.80GB/T12994CrMnSiMov 0.35~0.450.80~1.100.80~1.10 1.30~1.500.20~0.40GB/T12994Cr3Mo3SiV 0.35~0.450.80~1.100.25~0.70 3.00~3.750.25~0.75GB/T12994Cr5MoSiV 0.33~0.430.80~1.200.20~0.50 4.75~5.500.30~0.60GB/T12994Cr5MoSiV10.32~0.420.80~1.200.20~0.50 4.75~5.500.80~1.20GB/T12994Cr5W2VSi 0.32~0.420.80~1.20≤0.404.75~5.501.60~2.400.60~1.00VVW W Cr Cr Mn Mn Si Si C C (5)、无磁模具钢牌号及化学成分:化学成分(%执行标准牌号(4)、热作模具钢牌号及化学成分:化学成分执行标准牌号GB/T12997Mn15Cr2Al3V2WMo 0.65~0.75≤0.8014.5~16.5 2.00~2.500.50~0.80 1.50~2.00GB/T12993Cr2Mo 0.28~0.400.20~0.800.60~1.00 1.40~2.000.30~0.55≤0.25GB/T12993Cr2NiMo0.32~0.400.20~0.400.60~0.801.70~2.000.25~0.400.85~1.153、高速工具钢牌号及化学成分:(1)、钨系工具钢牌号及化学成分:PS NiGB/T9943W18Cr4V 0.70~0.800.20~0.400.10~0.400.0300.0300.03GB/T9943W18Cr4VCo50.70~0.800.20~0.400.10~0.400.0300.0300.03GB/T9943W18Cr4V2Co80.75~0.850.20~0.400.20~0.400.0300.0300.03GB/T9943W12Cr4V5Co51.50~1.600.15~0.400.15~0.400.0300.0300.03(2)、钼系高速工具钢牌号及化学成分:PSNiGB/T9943W6Mo5Cr4V20.80~0.900.20~0.450.15~0.400.0300.0300.3GB/T9943CW6Mo5Cr4V20.95~1.050.20~0.450.15~0.400.0300.0300.3GB/T9943W6Mo5Cr4V3 1.00~1.100.20~0.450.15~0.400.0300.0300.3GB/T9943CW6Mo5Cr4V3 1.15~1.250.20~0.400.15~0.400.0300.0300.3GB/T9943W2Mo9Cr4V20.97~1.050.20~0.550.15~0.400.0300.0300.3GB/T9943W6Mo5Cr4V2Co50.80~0.900.20~0.450.15~0.400.0300.0300.3GB/T9943W7Mo4Cr4V2Co5 1.05~1.150.15~0.300.15~0.400.0300.0300.3GB/T9943W2Mo9Cr4VCo8 1.05~1.150.15~0.650.15~0.400.0300.0300.3GB/T9943W6Mo3Cr4V 0.77~0.870.20~0.400.15~0.400.0300.0300.3GB/T9943W6Mp5Cr4V2Al1.05~1.200.20~0.600.15~0.400.0300.0300.3Ni Mo Cr Mn Mn Mn Si Si Si C C C 牌号牌号执行标准执行标准化学成分(%)≤化学成分(%(6)、高速工具钢牌号及化学成分:化学成分(%执行标准牌号。
硅锰合金
锰矿化学成分要求:
锰矿粒度:10 mm~80 mm,小于10 mm的不大于10%;②对焦炭的要求:应符合冶金焦条件,固定碳≥84%, 灰分≤14%;粒度要求5 mm~25 mm。萤石中的CaF2≥70%,粒度5 mm~40 mm。对原料的要求与电炉容量大小有关。
(2)冶炼参数要求:在变压器额定容量为12500 kVA矿热炉条件下:①常用电压级为143 V;②合适的电极工 作端长度1700 mm~2000 mm;③保持三相电流电压平衡;④控制合适的炉渣碱度,控制二元碱度R2=0.5~0.7,炉 渣中 SiO235~43%、MgO5~9%;⑤料面透气性良好、冒火均匀、炉料均衡大面积下沉(封闭电炉使炉内压力稳定)、 电极深而稳定地插入炉料中,这是冶炼过程中炉况正常的重要标志;⑥足够量的还原剂,还原剂不足,易导致翻 渣、负荷波动且送电不足,合金中Si与Mn的含量下降。
炉渣碱度
冶炼硅锰合金时,硅和锰是从熔融态的硅酸锰中还原出来。MnO易被还原,而SiO2难被还原。为使SiO2能得 到充分还原以保证合金成分,从控制炉渣成分角度来考虑,应选择低碱度炉渣为宜,且碱度愈低愈好。但当碱度 低于0.5时炉渣粘度较大,难以从炉内排出;且由于导电性差而影响电功率在炉膛载体内的均匀分布,难以得到广 阔的高温区。结果会使 SiO2不能充分还原,还会导致炉况恶化。影响炉渣碱度的重要因素是SiO2的还原率。提 高炉渣的碱度的途径就是提高SiO2的还原率来实现,不能依靠添加CaO或MgO来实现,因为CaO和MgO的增加限制了 SiO2的还原,降低了Mn的回收率。通常情况下,控制炉渣碱度CaO/SiO2=0.5~0.7、CaO+MgO/SiO2= 0.6~0.8较 适宜,此时渣中SiO2含量在38~42%、MnO含量在10%左右。
硅锰合金对冶炼的要求
硅锰合金对冶炼的要求
硅锰合金是一种重要的铁合金,广泛应用于钢铁冶炼过程中。
它由硅和锰两种元素组成,其中硅的含量通常在30%至35%之间,锰的含量通常在60%至75%之间。
硅锰合金的主要作用是增加钢铁中的碳含量、硅含量和锰含量等元素,从而改善钢铁的物理和机械性能。
1.合金纯度要求高:硅锰合金的纯度对于冶炼过程至关重要。
高质量的硅锰合金应该具有较高的纯度,以确保其能够有效地溶解在钢水中,使合金元素能够充分发挥作用。
2.粒度要求适中:硅锰合金的颗粒大小对冶炼过程也有一定的影响。
合金的颗粒大小过大或过小都会影响其熔化速度和熔化性能,从而影响到合金的均匀分布和化学反应。
一般来说,硅锰合金的颗粒大小应该适中,以便有效地溶解和溶解。
3.化学成分稳定:硅锰合金的化学成分对冶炼过程也有一定的要求。
硅锰合金中的硅和锰元素含量应该在一定的范围内,以确保在钢水中形成合适的比例和含量。
此外,硅锰合金中还应该控制其他杂质元素的含量,以避免对钢水质量和性能产生负面影响。
4.熔化性能要稳定:硅锰合金的熔化性能对于冶炼过程也非常重要。
合金的熔化温度和熔化速度应该适中,以确保在冶炼过程中能够充分发挥作用,并且能够有效地与钢水中的其他成分发生化学反应。
总之,硅锰合金对于冶炼过程有一些特殊的要求。
高纯度、适中的颗粒大小、稳定的化学成分和熔化性能都是确保硅锰合金能够有效地发挥作用的关键因素。
只有满足这些要求,硅锰合金才能够在冶炼过程中发挥其应有的功能,提高钢铁的质量和性能。
硅锰合金的冶炼要点
关于硅锰合金的冶炼方式和方法邓绍鑫、邓元华内容摘要:硅锰合金是炼钢中常用的复合脱氧剂,因此,世界上对于硅锰合金的冶炼都十分的重视。
本文通过对硅锰合金的冶炼过程进行剖析阐述,客观上总结了国内外硅锰合金冶炼的技术手段和方法。
关键词:硅锰合金复合脱氧剂冶炼硅锰合金是炼钢常用的复合脱氧剂,又是生产中,低碳锰铁和电硅热法生产金属锰的还原剂。
硅锰合金可在大中小型矿热炉内采取连续式操作进行冶炼。
目前,世界上硅锰合金电炉正向大型化、全封闭的方向发展,南非1975年投产了一台88000KVA的大型硅锰合金电炉。
表1-1某厂冶炼中低碳锰铁自用硅锰合金牌号及成分生产硅锰合金的原料有锰矿、富锰渣、硅石、焦炭。
生产硅锰合金可使用一种锰矿或几种锰矿(包括富锰渣)的混合矿。
为保证炼出合格产品,矿石中的锰铁比和锰磷比应满足一定要求,见表1-2所示。
所用的锰矿含锰越高,表1-2各项指标越好,图1-1为锰矿品位对硅锰合金技术经济指标的影响。
锰矿中二氧化硅含量通常不受限制。
采用含二氧化硅较高的锰矿(30~40%SiO 2)来冶炼硅锰合金在技术上是允许的,在资源利用上是合理的。
锰矿中的杂质P 2O 5要低,P 2O 5使合金中磷含量升高。
锰矿粒度一般为10~80mm ,小于10mm 不超过总量的10%。
对于硅石的要求,SiO 2≥97%,P 2O 5<0.02,粒度10~40mm ,不带泥土及杂物。
图1-1对于焦炭的要求,固定碳≥84%,灰分≤14%,焦炭粒度,一般中小电炉使用3~13mm,大电炉使用5~25mm。
对于石灰的要求与碳素锰铁对石灰的要求相同。
为了改善硅的还原,炉料中必须有足够的SiO2使在酸性渣中进行冶炼,渣中SiO2过高,会使排渣困难,通常冶炼硅锰合金的炉渣成分:(SiO2)=34~42%,CaO+MgO=0.6~0.8 Mn<8% SiO2锰的高价氧化物不稳定,受热后容易分解和被CO还原成低价的氧化物MnO,在1373K~1473K的温度区间,锰的高价氧化物已经分解或还原成MnO。
硅锰钢丝钢号
硅锰钢丝钢号
硅锰钢丝是一种用于制造钢丝绳、弹簧、机械零件等的合金钢丝。
它的主要成分是碳、锰、硅和少量的其他元素。
硅锰钢丝的钢号通常以“70”开头,例如70#、72A等。
不同的钢号代表着不同的化学成分和机械性能。
硅锰钢丝的主要特点是强度高、韧性好、耐磨性强、耐腐蚀性好。
它的强度比普通钢丝高出很多,可以承受更大的拉力和压力。
同时,硅锰钢丝的韧性也很好,不易断裂。
这使得它在制造钢丝绳、弹簧等需要承受大力的产品中得到广泛应用。
此外,硅锰钢丝的耐磨性和耐腐蚀性也很好,可以在恶劣的环境下使用。
硅锰钢丝的钢号有很多种,每种钢号都有其特定的用途。
以下是几种常见的硅锰钢丝钢号及其用途:
70#:用于制造钢丝绳、弹簧、机械零件等。
72A:用于制造弹簧、机械零件等。
65Mn:用于制造弹簧、机械零件等。
60Si2MnA:用于制造弹簧、机械零件等。
50CrVA:用于制造弹簧、机械零件等。
以上钢号只是硅锰钢丝钢号中的一部分,还有很多其他的钢号。
不同的钢号适用于不同的场合,选择合适的钢号可以提高产品的性能和寿命。
总之,硅锰钢丝是一种优良的合金钢丝,具有高强度、好韧性、耐磨性强、耐腐蚀性好等优点。
不同的钢号适用于不同的场合,选择合适的钢号可以提高产品的性能和寿命。