钢牌号及化学成分

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钢的牌号和化学成分标准

钢的牌号和化学成分标准

钢的牌号和化学成分标准成品标准一、钢的牌号和化学成分标准(一)普通碳素结构钢成分标准(GB/T 700-2006)牌号 等级 厚度(或直径)/mm脱氧方法 化学成分(质量分数)/%,不大于 C Si Mn P S Q195 — — F 、Z 0.120.300.50 0.035 0.040 Q195K A — F 、Z 0.06-0.12 0.12-0.22 0.25-0.55 0.030 0.035 B — F 、Z 0.06-0.12 0.12-0.22 0.25-0.55 0.030 0.030 Q215A —F 、Z 0.15 0.351.200.045 0.050 B 0.045 Q235A—F 、Z0.22 0.351.400.0450.050 B 0.20b 0.045 C Z 0.17 0.040 0.040 D TZ 0.035 0.035 Q275A— F 、Z 0.24 0.351.500.0450.050 B ≤40 Z 0.21 0.045 0.045 >40 0.22 C —Z 0.200.040 0.040 DTZ0.0350.035b经需方同意,Q235B 的碳含量可不大于0.22%冷轧用铝镇静钢Q195L 成分标准(企业标准或内控)标准化学成分%备注 C Si MnP ≤ S ≤ 国标≤0.08≤0.070.25~0.500.0300.030镀锌用 ≤0.08≤0.10 0.25~0.50 0.030 0.030 非镀锌用 内控 0.05-0.08 0.05-0.07 0.35-0.45 0.030 0.030 目标值0.060.060.400.0300.030(二)优质碳素结构钢成分标准(GB/T699-1999) 1、 20#钢成分标准(液相线温度1515℃)钢种 标准化学成分% CSi MnP ≤ S ≤ 20#GB/T699-1999 0.17~0.23 0.17~0.37 0.35~0.650.035 0.035 内控 0.17~0.21 0.17~0.27 0. 50~0.600.0300.030 目标值 0.18 0.25 0.550.0300.0302、 45#钢成分标准(液相线温度1493℃)3、 08Al 化学成分标准[GB/T699-1999]元素 C Si Mn P SALs标准 ≤0.08 ≤0.03 ≤0.40 ≤0.020 ≤0.030 0.015-0.065 内控0.06≤0.03 0.3-0.35 ≤0.020 ≤0.020 0.025-0.040 目标值 0.060.030.300.0150.0150.030附:优质钢等级组别质量等级 PS不大于%优质钢 0.035 0.035 高级优质钢 0.030 0.030 特级优质钢0.0250.020 (三)低合金高强度结构钢Q345B 技术标准1、 低合金高强度结构钢Q345B 标准(GB/T 1591-2008)%牌号 C Si Mn p S Q345B≤0.20≤0.50≤1.70≤0.035≤0.035钢种 标准化学成分%CSi Mn P 、S ≤ Cr ≤ Ni ≤ Cu ≤ 45#GB/T699-19990.42~0.50 0.17~0.37 0.50~0.80 0.035 0.25 0.30 0.25 内控 0.42~0.48 0.17~0.27 0. 50~0.60 0.030 0.25 0.30 0.25 目标值0.460.250.550.0300.250.300.25型材P、S含量可提高0.005%。

合金结构钢的牌号及化学成分GBT

合金结构钢的牌号及化学成分GBT

合金结构钢的牌号及化学成分GBT合金结构钢的牌号是根据其化学成分来命名的,根据国家标准GBT700-2024《碳素结构钢技术条件》的规定,合金结构钢的牌号采用字母和数字组合的形式表示,其中字母代表合金元素的符号,数字代表元素含量的百分比。

以下是一些常见的合金结构钢牌号及其化学成分:1.20CrMo:由于合金中添加了Cr和Mo元素,提高了钢的硬度和耐磨性,适用于制作耐磨零件。

化学成分为:C:0.17-0.24,Si:0.17-0.37,Mn:0.40-0.70,Cr:0.80-1.10,Mo:0.15-0.252.40Cr:具有较高的硬度、强度和耐磨性,适用于制造高强度要求的零件。

化学成分为:C:0.37-0.44,Si:0.17-0.37,Mn:0.50-0.80,Cr:0.80-1.10。

3.42CrMo:添加了Cr和Mo元素,提高了钢的硬度和抗拉强度,适用于制造高负荷的零件。

化学成分为:C:0.38-0.45,Si:0.17-0.37,Mn:0.50-0.80,Cr:0.90-1.20,Mo:0.15-0.30。

4.20CrNiMo:由于添加了Ni和Mo元素,提高了钢的强度和韧性,适用于制造大型和高负荷的零件。

化学成分为:C:0.17-0.24,Si:0.17-0.37,Mn:0.40-0.70,Ni:0.90-1.20,Cr:0.30-0.60,Mo:0.15-0.255.35CrMo:添加了Cr和Mo元素,提高了钢的抗拉强度和硬度,适用于制造大型机械零件。

化学成分为:C:0.32-0.40,Si:0.17-0.37,Mn:0.40-0.70,Cr:0.80-1.10,Mo:0.15-0.25合金结构钢的化学成分决定了其力学性能和用途,不同的合金元素可以提高钢的硬度、强度、韧性和耐磨性。

因此,在选择合金结构钢时,需要根据具体的使用要求和环境条件进行选材,并根据设计标准和相关规范来确定合金结构钢的牌号和化学成分。

中外常用钢号对照表及化学成分

中外常用钢号对照表及化学成分

牌号
00Cr19Ni10
1Cr19Ni12 0Cr25Ni12 0Cr17Ni12Mo2 00Cr17Ni14Mo 2 1Cr18Ni12Mo2 Ti 0Cr18Ni12Mo2 Ti 1Cr18Ni9Ti 2Cr13 9Cr18MoV
≤0.12 ≤0.08 ≤0.08
≤1.0 ≤1.0 ≤1.0
≤2.0 ≤2.0 ≤2.0
0.2
0.05
80-40
产品名 称标准 普通碳素 结构钢 GB700-88
牌号 Q215 (A2、C2) Q235 (A3、C3) Q255 (A4、C4)
化学成分% C 0.09~0.15 Si ≤0.3 Mn 0.25~0.55 Cr Ni Mo Cu Ti S ≤0.05 P ≤0.045 N 美国 1010
17.0~19.0 24.0~26.0 16.0~18.5
10.5~13.0 19.0~22.0 10.0~14.0
2.0~3.0
-
-
≤0.03 ≤0.03 ≤0.03
≤0.035 ≤0.035 ≤0.035
-
305 310S 316
SUS305 SUS-310S SUS316
X5CrNi -Mo18.1 X2CrN i-Mo18.1 X10CrNi -MoTi
≤0.07
≤1.0
≤1.0
15.5~17.5
3.0~5.0
-
2.6~4.6
-
≤0.03
≤0.035
-
≤0.1
≤1.5
7.5~10.0
17.0~19.0
3.50~5.50
-
-
-
≤0.03
≤0.06
0.12~0.25

各种钢管牌号及化学成分

各种钢管牌号及化学成分

不锈钢牌号及化学成分301不锈钢:301不锈钢牌号1Cr17Ni7 。

化学成分% C:≤0.15 ,Si :≤1.0 ,Mn :≤2.0 ,Cr :16.0~18.0 ,Ni :6.0-8.0,S :≤0.03 ,P :≤0.045304不锈钢:304不锈钢牌号:0Cr18Ni9(0Cr19Ni9);化学成分% C:≤0.07 ,Si :≤1.0 ,Mn :≤2.0 ,Cr :17.0~19.0 ,Ni :8.0~11.0,S :≤0.03 ,P :≤0.035304L不锈钢:304L不锈钢牌号:00Cr19Ni10(0Cr18Ni10),化学成分% C:≤0.07 ,Si :≤1.0 ,Mn :≤2.0 ,Cr :17.0~19.0 ,Ni :8.0~11.0,S :≤0.03 ,P :≤0.035302不锈钢:302不锈钢牌号:1Cr18Ni9.化学成分% C:≤0.15 ,Si :≤1.0 ,Mn :≤2.0 ,Cr :17-19 ,Ni :8.0-10,S :≤0.03 ,P :≤0.045303不锈钢:303不锈钢牌号:Y1Cr18Ni9.化学成分% C:≤0.15 ,Si :≤1.0 ,Mn :≤2.0 ,Cr :17-19 ,Ni :8.0-10,S :≥0.03 ,P :≤0.20,Mo≤6.0316不锈钢:316L不锈钢牌号:00Cr17Ni14Mo2。

化学成分% C:≤0.03 Si :≤1.0 Mn :≤2.0 Cr :16.0~18.0 Ni :12.0~15.0 S :≤0.03 P :≤0.045 Mo:2.0~3.0310不锈钢:化学成分% C:≤0.25 Si :≤1.5 Mn :≤2.0 Cr :24.0~26.0 Ni :19.0~22.0 S :≤0.03 P :≤0.045310S不锈钢:310S不锈钢牌号:0Cr25Ni20/1Cr25Ni20Si2。

化学成分% C:≤0.08 Si :≤1.0 Mn :≤2.0 Cr :24.0~26.0 Ni :19.0~22.0 S :≤0.03 P :≤0.045317L不锈钢:317L不锈钢牌号:0Cr19Ni13Mo3 。

不锈钢和耐热钢_牌号及化学成分

不锈钢和耐热钢_牌号及化学成分

不锈钢和耐热钢_牌号及化学成分
不锈钢是一种合金钢,添加了铬等元素,能够在大气或化学介质中形成致密的氧化膜,具有耐腐蚀性,并能够抗氧化、耐磨、耐高温等特性。

常见的不锈钢牌号和化学成分如下:
1. 304不锈钢(UNS S30400):含18-20%铬,8-10.5%镍,少
量的碳、锰和氮。

2. 316不锈钢(UNS S31600):含16-18%铬,10-14%镍,2-3%钼,少量的碳、锰和氮。

3. 430不锈钢(UNS S43000):含16-18%铬,少量的碳和铁。

4. 201不锈钢(UNS S20100):含16-18%铬,3.5-
5.5%镍,
少量的碳和锰。

耐热钢是一种能够在高温环境中保持良好力学性能和抗氧化性能的钢材。

常见的耐热钢牌号和化学成分如下:
1. 310耐热钢(UNS S31000):含25-28%铬,19-22%镍,少
量的碳、锰和硅。

2. 304H耐热钢(UNS S30409):含18-20%铬,8-10.5%镍,
少量的碳、锰和氮。

3. 321耐热钢(UNS S32100):含17-19%铬,9-12%镍,少
量的碳和钛。

4. 601耐热钢(UNS N06601):含22-25%铬,61-63%镍,少量的铝、铁和硅。

以上仅为常见的不锈钢和耐热钢牌号和化学成分,具体的成分比例还可以根据不同的标准和应用需求进行调整。

常见牌号钢的化学成分

常见牌号钢的化学成分

常见牌号钢的化学成分一、SWRCH35K(一般常用于生产8.8级、8级,也有用10B21【10B21不宜用在大螺栓上】)碳C:0.32-0.38 硅Si:0.10-0.35 锰Mn:0.60-0.90硫S:允许残余含量≦0.035 磷P:允许残余含量≦0.030备注:8.8级相当于SAE Grade 5二、SCM435(一般用于常用于生产10.9级、12.9级)碳C:0.38-0.45 硅Si:0.17-0.37 锰Mn:0.50-0.80硫S:允许残余含量≦0.035 磷P:允许残余含量≦0.035铬Cr:0.90-1.20 镍Ni:允许残余含量≦0.030钼Mo:0.15-0.25 铜Cu:允许残余含量≦0.030备注:10.9级相当于SAE Grade 8;SCM435相当于国内的牌号35CrMo、42CrMo三、SUS304(一般常用于生产A2-70)碳C:≤0.07 硅Si:≤1.0 锰Mn:≤2.0硫S:允许残余含量≦0.030 磷P:允许残余含量≦0.035铬Cr:17.0~19.0 镍Ni:8.0~11.0304不锈钢中国牌号:0Cr18Ni9四、SUS316(一般常用于生产A4-80)碳C:≤0.08 硅Si:≤1.0 锰Mn:≤2.0硫S:允许残余含量≦0.030 磷P:允许残余含量≦0.035铬Cr:16.0~18.5 镍Ni:10.0~14.0钼Mo:2.0-3.0五、SWRCH22A(一般常用于生产自攻钉类)碳C:0.18-0.23 硅Si:≤0.10 锰Mn:0.70-1.00硫S:允许残余含量≦0.035 磷P:允许残余含量≦0.030铝Al:≤0.02六、SWRCH8A或SWRCH10A(一般常用于生产无等级要求的)碳C:0.08-0.13 硅Si:≤0.10 锰Mn:0.30-0.60硫S:允许残余含量≦0.035 磷P:允许残余含量≦0.030 铝Al:≤0.02七、Q235(一般常用于生产无性能等级要求的平垫圈类)Q235A级含C0.14~0.22% Mn0.30~0.65 Si≤0.30S≤0.050 P≤0.045 Q235B级含C0.12~0.20% Mn0.30~0.670 Si≤0.30S≤0.045 P≤0.045 Q235C级含C≤0.18% Mn0.35~0.80 Si≤0.30S≤0.040 P≤0.040 Q235D级含C≤0.17% Mn0.35~0.80 Si≤0.35 S≤0.040 P≤0.035八、65Mn(一般常用于垫垫,销、轴等类)碳C:0.62-0.70 硅Si:0.17-0.37 锰Mn:0.90-1.20 硫S:允许残余含量≦0.04 磷P:允许残余含量≦0.035 铬Cr:≦0.25 镍Ni:≦0.25 铜Cu:≦0.25备:以上资料仅供参考。

优质碳素结构钢牌号和化学成分

优质碳素结构钢牌号和化学成分

优质碳素结构钢牌号和化学成分1.45钢(GB/T699-1999)45钢是一种普通碳素结构钢,其化学成分如下:-碳含量(C):0.42-0.50%-硅含量(Si):0.17-0.37%-锰含量(Mn):0.50-0.80%-磷含量(P):≤0.035%-硫含量(S):≤0.035%2.40Cr钢(GB/T3077-1999)40Cr钢是一种具有较高强度和硬度的合金结构钢,其化学成分如下:-碳含量(C):0.37-0.44%-硅含量(Si):0.17-0.37%-锰含量(Mn):0.50-0.80%-磷含量(P):≤0.035%-硫含量(S):≤0.035%-铬含量(Cr):0.80-1.10%-钼含量(Mo):0.15-0.25%3.20Cr钢(GB/T3077-1999)20Cr钢是一种低碳合金结构钢,其化学成分如下:-碳含量(C):0.18-0.24%-硅含量(Si):0.17-0.37%-锰含量(Mn):0.50-0.80%-磷含量(P):≤0.035%-硫含量(S):≤0.035%-铬含量(Cr):0.70-1.00%4.35CrMo钢(GB/T3077-1999)35CrMo钢是一种含有钼的合金结构钢,其化学成分如下:-碳含量(C):0.32-0.40%-硅含量(Si):0.17-0.37%-锰含量(Mn):0.40-0.70%-磷含量(P):≤0.035%-硫含量(S):≤0.035%-铬含量(Cr):0.80-1.10%-钼含量(Mo):0.15-0.25%需要注意的是,以上化学成分仅为标准要求的范围,具体的成分会根据不同的生产工艺和特定要求有所变化。

优质碳素结构钢通常具有较高的强度、韧性和耐热性能,适用于各种机械零部件和工程结构的制造。

此外,优质碳素结构钢还可以通过热处理、表面处理等方式进行改良,以满足特定的工程要求。

必须强调的是,对于具体的工程应用,还需要根据实际情况和需求选择合适的材料牌号和制造工艺。

常用工业用钢牌号及性能(详细)

常用工业用钢牌号及性能(详细)

语拼音中选取第一个字母. 具
常用钢产品的名称、用途、特性和工艺方法 表示符号(GB/T 221—2000)
名称
符号 位置
名称
符号 位置
碳素结构钢
Q 头 桥梁用钢
q

低合金高强度钢 Q 头 锅炉用钢
g

易切削钢
Y 头 焊接气瓶用钢 HP 尾
碳素工具钢
T
头 车辆车轴用钢 LZ

(滚珠)轴承钢
G
头 机车车轴用钢 JZ
当氢在缺陷处以分子态析出时,会产生很高内压, 形成微裂纹,其内壁为白色,称白点或发裂。
钢中白点
钢的氢脆断口
二、合金元素在钢中的作用
㈠ 对钢中基本相的影响 1、溶于铁素体, 起固溶强
化作用
非碳化物形成元素及过剩 的碳化物形成元素都溶于 铁素体,形成合金铁素体.
Si、Mn对强度、硬度提高 显著。Cr、Ni在适当范围 内提高韧性。
限为0.01%)。
汽轮机叶片
* 珠光体耐热钢含碳量的标注同结构钢。如15CrMo
注:旧标准含碳量表示方法为: 当含碳量≤0.08%时,以“0”表示,如0Cr18. 当含碳量≤0.03%时,以“00”表示,如00Cr18Ni10.

不 锈 钢 法
锈 钢 型


2.5
7、铸钢 ZG + 两位数字 ZG表示“铸钢”; 两位数字表示平均含碳
脱氧方法符号: 沸腾钢—F; 镇静钢—Z;半镇静钢—b; 特殊镇静钢—TZ。
如碳素结构钢牌号表示为

Q235AF、Q235BZ。

低合金高强度结构钢都是镇静钢或特殊镇静钢,其 牌号中没有表示脱氧方法的符号。如Q345C。

不锈钢和耐热钢_牌号及化学成分

不锈钢和耐热钢_牌号及化学成分

不锈钢和耐热钢_牌号及化学成分不锈钢和耐热钢都是常用的金属材料,它们在工业制造、建筑和航空航天等领域有着广泛的应用。

本文将介绍不锈钢和耐热钢的牌号及化学成分,以及它们的特性和应用。

一、不锈钢的牌号及化学成分不锈钢是一种不易生锈、耐腐蚀的金属材料,因此它在制造厨具、化工设备、建筑材料等方面有着重要的应用。

不锈钢按照其化学成分的不同可以分为很多种不同的牌号,以下是常见的不锈钢牌号及其化学成分:1. 304不锈钢:主要成分为Cr(18-20%)、Ni(8-10%)、C(≤0.08%)、Mn(≤2%)、Si(≤1%)、P(≤0.045%)、S(≤0.03%)等。

2. 316不锈钢:主要成分为Cr(16-18%)、Ni(10-14%)、Mo(2-3%)、C(≤0.08%)、Mn(≤2%)、Si(≤1%)、P(≤0.045%)、S(≤0.03%)等。

3. 430不锈钢:主要成分为Cr(16-18%)、C(≤0.12%)、Mn (≤1%)、Si(≤1%)、P(≤0.04%)、S(≤0.03%)等。

4. 201不锈钢:主要成分为Cr(13-15%)、Ni(0.8-1.2%)、C (≤0.12%)、Mn(≤1%)、Si(≤0.75%)、P(≤0.06%)、S(≤0.03%)等。

以上是常见的几种不锈钢牌号及其化学成分,不同的不锈钢牌号在耐腐蚀性能、强度和加工性能方面有所不同,可以根据具体的使用要求来选择不同的牌号。

二、耐热钢的牌号及化学成分耐热钢是一种耐高温腐蚀的金属材料,通常用于制造高温工作的设备和零部件。

常见的耐热钢牌号及其化学成分如下:1. 1Cr13Al4耐热钢:主要成分为Cr(12-15%)、Al(4-6%)、Fe(余量)等。

2. 1Cr25Ni20Si2耐热钢:主要成分为Cr(24-26%)、Ni(19-21%)、Si(1.5-2.5%)、Fe(余量)等。

3. GH3039耐热钢:主要成分为Ni(39-41%)、Cr(19-21%)、Fe(余量)等。

常用耐热钢的牌号化学成分热处理力学性能及用途

常用耐热钢的牌号化学成分热处理力学性能及用途

常用耐热钢的牌号化学成分热处理力学性能及用途耐热钢是指在高温下仍能保持一定强度和稳定性能的钢材。

常用的耐热钢材料主要有以下几种:1.1Cr5Mo:也被称为12Cr1MoV,其化学成分包括碳(C)≤0.15、硅(Si)≤0.50、锰(Mn)0.30-0.60、磷(P)≤0.025、硫(S)≤0.025、铬(Cr)0.80-1.10、镍(Ni)≤0.30、钼(Mo)0.45-0.65、铜(Cu)≤0.30,热处理状态为调质状态。

该材料具有高温强度好、抗氧化性能高、耐气腐蚀性好的特点,适用于石化设备、电力设备等高温工作环境中。

2.15CrMo:化学成分包括碳(C)0.12-0.18、硅(Si)0.17-0.37、锰(Mn)0.40-0.70、磷(P)≤0.03、硫(S)≤0.03、铬(Cr)0.80-1.10、钼(Mo)0.40-0.55,热处理状态为调质状态。

该材料具有强度高、塑性好、耐高温性能好的特点,适用于制造高压锅炉、石油化工设备、瓦斯燃烧器等。

3.25Cr2MoVA:化学成分包括碳(C)0.22-0.29、硅(Si)≤0.35、锰(Mn)0.40-0.70、磷(P)≤0.03、硫(S)≤0.03、铬(Cr)1.50-1.80、钼(Mo)0.45-0.65、钒(V)0.15-0.30、铝(Al)≤0.05、铜(Cu)≤0.35,热处理状态为调质状态。

该材料具有高温强度高、热变形性能好、抗氧化性能好的特点,适用于制造高温设备、航空发动机等。

4.12Cr2MoWVTiB:化学成分包括碳(C)0.08-0.15、硅(Si)0.17-0.37、锰(Mn)0.40-0.70、磷(P)≤0.03、硫(S)≤0.03、铬(Cr)1.00-1.30、钼(Mo)0.25-0.35、钨(W)0.90-1.10、钛(Ti)0.03-0.06、硼(B)0.001-0.005,热处理状态为调质状态。

该材料具有高温强度高、耐氧化性好、耐蠕变性能好的特点,适用于制造高温工作的炉具、高压容器等。

钢的牌号和化学成分标准

钢的牌号和化学成分标准

成品标准一、钢的牌号和化学成分标准(一)普通碳素结构钢成分标准(GB/T 700-2006)冷轧用铝镇静钢Q195L成分标准(企业标准或内控)(二)优质碳素结构钢成分标准(GB/T699-1999)1、20#钢成分标准(液相线温度1515℃)2、 45#钢成分标准(液相线温度1493℃)3、 08Al 化学成分标准[GB/T699-1999]附:优质钢等级组别(三)低合金高强度结构钢Q345B 技术标准1、 低合金高强度结构钢Q345B 标准(GB/T 1591-2008)%附:力学性能应符合下表规定(四)热轧钢筋钢技术标准热轧钢筋钢标准执行国标[GB1499.2-2007]说明:碳当量Ceq (%)值可按式Ceq=C+Mn/6+(Cr+V+Mo)/5+(Cu+Ni)/15计算。

附:力学性能符合下表规定(五)石油管线钢S290技术标准1、化学成分及力学性能:执行[GB/T14164-2005]当合同中未注明质量等级、边缘状态,则按GB/T 14164-2005供货的产品按质量等级1类PSL1、不切边EM的钢带供货。

表1牌号质量等级化学成分(质量分数)/%C≤aSi≤Mn≤aP≤S≤其它S290 PSL1 0.26 0.35 1.30 0.030 0.030 c,d PSL2 0.20 0.35 1.30 0.025 0.015 c,da碳含量比规定最大碳含量每降低0.01%,锰含量则允许比规定最大锰含量提高0.05%,但对S290最大锰含量不允许超过1.50% 。

b经供需双方协商,可在铌、钒、钛三种元素中或添加其中一种,或添加它们的任一组合。

c由生产厂选定,可在铌、钒、钛三种元素中或添加其中一种,或添加它们的任一组合。

d铌、钒、钛含量之和不应超过0.15% 。

e只要满足脚注d的要求以及表中对磷和硫含量的要求,经供需双方协商,还可按其他化学成分交货。

2、力学性能及工艺性能符合下表规定表2 PSL1钢带的力学性能和工艺性能牌号拉伸试验a180°,冷弯试验aa——试样厚度d——弯心直径规定总延伸强度R t0.5/MPa抗拉强度R m/MPa断后伸长率%b,不小于L0=5.65L0=50mmS290 290 415 21 见说明d=2aa表中所列拉伸和冷弯试验,规定值适用于横向试样。

钢牌号与化学成分-全

钢牌号与化学成分-全

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 0.21.00~1.700.550.030.030.70.70.02~0.200.02~0.200.02~0.200.0153、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≤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 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/T307740Mn20.37~0.440.17~0.371.40~1.800.0350.0350.30.30.3执行标准牌号化学成分(%)C Si Mn ≤4、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 CGB/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(2)、锰钒合金结构钢牌号及化学成分:(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(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 SiBGB/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(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 (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 ≤执行标准牌号化学成分(%)C SiV≤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≤≤(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 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 Mn 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 (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 B执行标准牌号C SiBGB/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 Cu≤≤(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(%)C 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 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(%)CSiMn 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 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 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 Si Mn Cr ≤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/T307720CrNiMo0.17~0.230.17~0.370.60~0.950.40~0.700.35~0.750.20~0.300.0350.0350.3Cr Ni Mo≤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≤(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 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 (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 MnGB/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=0.15~0.250.0350.0350.3B≤≤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(%)C WSi Mn Cr Ni Mo、Ti、V ≤(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(%)CSiMn CrNi执行标准牌号化学成分(%)CSiMn CrNiMo VMn CrNiMo≤(23)、铬镍钼矾合金结构钢牌号及化学成分:(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(%)CSiGB/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(%)C Mn≤执行标准牌号化学成分(%)执行标准牌号化学成分(%)CMn≤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≤执行标准牌号化学成分(%)C Si Mn Mo.Ti.V B Cr≤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:化学成分(%)执行标准牌号化学成分(%)C Si Mn 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(%)CSi Mn ≤执行标准牌号化学成分(%)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/T12200Cr18Ci12Mo2Cu20.081.002.000.0350.0317.00~19.0010.00~14.501.00~2.501.20~2.75其它≤NiCuO≤执行标准牌号Cr Ni N Mo 执行标准牌号C Si Mn Mo Cr P SGB/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≤0.600.20化学成分(%)Cr Ni MoVTi执行标准牌号化学成分(%)Cr MoAl ≤≤执行标准牌号化学成分(%)Cr ≤Ni MoAlGB/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 2.000.0350.03024.00~26.0019.00~22.00Cr Ni ≤执行标准牌号化学成分(%)C 执行标准牌号化学成分(%)Cr Ni≤N、V、B、A1、W Mo、Nb、TiSi Mn。

钢牌号及化学成分

钢牌号及化学成分

Si 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 0.10~1.60 1.00~1.70 1.00~1.70 1.00~1.70 1.00~1.70 1.00~1.70 1.00~1.70 1.00~1.70 1.00~1.70
0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.7 0.7 0.7
0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
执行标准
牌号
C 0.17~0.24 0.27~0.34 0.32~0.39 0.37~0.44 0.42~0.49 0.47~0.55 0.2 0.2 0.18 0.18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.18 0.18 0.2 0.2 0.2
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
0.25 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
0.3 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
0.25 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

各种易切削钢牌号化学成分和供货硬度要求

各种易切削钢牌号化学成分和供货硬度要求

各种易切削钢牌号、化学成分和供货硬度要求表1硫系易切削钢的牌号及化学成分牌号化学成分,质量分数,%C Si Mn P SY08≤0.09≤0.150.75-1.050.04-0.090.26-0.35 Y120.08-0.160.15-0.350.70-1.000.08-0.150.10-0.20 Y150.10-0.18≤0.150.80-1.200.05-0.100.23-0.33 Y200.17-0.250.15-0.350.70-1.00≤0.060.08-0.15 Y300.27-0.350.15-0.350.70-1.00≤0.060.08-0.15 Y350.32-0.400.15-0.350.70-1.00≤0.060.08-0.15 Y450.42-0.50≤0.400.70-1.10≤0.060.15-0.25 Y15Mn0.14-0.20≤0.15 1.00-1.500.04-0.090.08-0.13 Y35Mn0.32-0.40≤0.100.90-1.35≤0.040.18-0.30 Y40Mn0.37-0.450.15-0.35 1.20-1.55≤0.050.20-0.30 Y40MnH0.37-0.45≤0.40 1.30-1.70≤0.060.08-0.13 Y45Mn0.40-0.48≤0.40 1.35-1.65≤0.040.16-0.24 Y08MnS≤0.09≤0.15 1.00-1.50≤0.110.30-0.45 Y12MnS≤0.14≤0.050.90-1.30≤0.110.27-0.33 Y12MnSH≤0.14≤0.05 1.00-1.50≤0.110.34-0.40 Y15MnS0.12-0.18≤0.400.90-1.30≤0.060.08-0.18 Y15MnSH0.14-0.20≤0.40 1.20-1.60≤0.060.15-0.25 Y35MnS0.32-0.39≤0.400.90-1.40≤0.060.15-0.25 Y35MnSH0.32-0.39≤0.40 1.30-1.70≤0.060.10-0.18 Y40MnSH0.35-0.40≤0.40 1.20-1.50≤0.060.24-0.33 Y45MnSH0.40-0.48≤0.40 1.35-1.65≤0.040.24-0.33 Y100S0.90-1.05≤0.400.70-1.00≤0.060.24-0.33表2铅系易切削钢牌号化学成分,质量分数,%C Si Mn P S PbY08Pb≤0.09≤0.150.75-1.050.04-0.090.26-0.350.15-0.35 Y12Pb≤0.15≤0.150.85-1.150.04-0.090.26-0.350.15-0.35 Y15Pb0.10-0.18≤0.150.80-1.200.05-0.100.23-0.330.15-0.35 Y12MnSPb≤0.14≤0.050.90-1.30≤0.110.27-0.330.20-0.35 Y12MnSPbH≤0.14≤0.05 1.00-1.50≤0.110.34-0.400.20-0.35 Y35Pb0.32-0.39≤0.400.70-1.10≤0.060.15-0.250.15-0.35 Y35MnPb0.32-0.39≤0.400.90-1.40≤0.060.15-0.250.15-0.35 Y35MnSPbH0.32-0.39≤0.40 1.30-1.70≤0.060.24-0.330.15-0.35 Y40MnSPbH0.35-0.40≤0.40 1.20-1.50≤0.060.24-0.330.15-0.35 Y45MnSPbH0.40-0.48≤0.40 1.35-1.65≤0.040.24-0.330.15-0.35 Y100Pb0.90-1.04≤0.300.35-0.65≤0.030.04-0.080.15-0.30表3锡系易切削钢牌号化学成分,质量分数,%C Si Mn P S SnY08Sn≤0.09≤0.150.75-1.200.04-0.090.26-0.400.09-0.25 Y15Sn0.13-0.18≤0.150.40-0.700.03-0.07≤0.050.09-0.25 Y45Sn0.40-0.48≤0.400.60-1.000.03-0.07≤0.050.09-0.25 Y45MnSn0.40-0.48≤0.40 1.20-1.70≤0.060.20-0.350.09-0.25表4钙系易切削钢牌号化学成分a,质量分数,%C Si Mn P S CaY45Ca0.42-0.500.20-0.400.60-0.90≤0.040.04-0.080.002-0.006 a钢中残余元素Ni、Cr、Cu含量各不大于0.25%;供热压力加工用时,铜含量不大于0.20%,供方能保证不大于此值时可不做分析。

钢的牌号和化学成分标准

钢的牌号和化学成分标准
0.035
0.035
Q275
A

F、Z
0.24
0.35
1.50
0.045
0.050
B
≤40
Z
0.21
0.045
0.045
>40
0.22
C

Z
0.20
0.040
0.040
D
TZ
0.035
0.035
b经需方同意,Q235B的碳含量可不大于0.22%
冷轧用铝镇静钢Q195L成分标准(企业标准或内控)
标准
化学成分%
0.030
0.035
B

F、Z
0.06-0.12
0.12-0.22
0.25-0.55
0.030
0.030
Q215
A

F、Z
0.15
0.35
1.20
0.045
0.050
B
0.045
Q235
A

F、Z
0.22
0.35
1.40
0.045
0.050
B
0.20b
0.045
C
Z
0.17
0.040
0.040
D
TZ
≤0.03
0.3-0.35
≤0.020
≤0.020
0.025-0.040
目标值
0.06
0.03
0.30
0.015
0.015
0.030
附:优质钢等级组别
质量等级
P
S
不大于%
优质钢
0.035
0.035
高级优质钢
0.030
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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≤0.050CSiMnP S 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/T699400.37~0.440.17~0.370.50~0.800.0350.0350.252、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/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/T1591Q345D0.180.10~1.600.550.030.033、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 ≤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 CrGB/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/T1591Q345E 0.180.10~1.600.550.0250.0254、合金机构钢牌号及化学成分执行标准牌号化学成分(%)CSi Mn ≤GB/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 SCr ≤GB/T307720MnV 1.70~0.24 1.70~0.371.30~1.600.0350.0350.34、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(%)CSi (3)、硅锰合金结构钢牌号及化学成分(2)、锰钒合金结构钢牌号及化学成分:PSGB/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 SCr ≤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≤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(%)CSiGB/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(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 Si(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 SiGB/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/T307725MnTiBRE 0.22~0.280.20~0.451.30~1.600.0350.0350.3P 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/T307750Cr 0.47~0.540.17~0.370.50~0.700.80~1.100.0350.035P(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(%)CSi Mn 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(%)CSi 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(%)CSi ≤(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(%)CGB/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/T307742CrMo 0.38~0.450.17~0.370.50~0.800.90~1.200.15~0.250.035P S GB/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/T307738CrMoVA10.35~0.420.20~0.450.30~0.601.35~1.650.15~0.250.035PSSi 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(%)CMn 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(%)CSi Mn Cr(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(%)CSi (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(%)CSi ≤GB/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/T307740CrNi0.37~0.440.17~0.370.50~0.800.45~0.751.00~1.400.035Si Mn Cr CSi 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≤(18)、铬锰钼合金结构钢牌号及化学成分:≤(17)、铬锰硅合金结构钢号及化学成分:执行标准牌号化学成分(%)执行标准牌号化学成分(%)CSi 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 NiGB/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 0.15~0.210.17~0.371.10~1.401.00~1.301.00~1.300.20~0.30(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(%)CSi 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(%)CSi Mn Cr Ni Mo (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(%)CSi Mn Cr Ni 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(%)CSiNiMoMnCrGB/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=0.20~0.30Mn Cr Ni W Si 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(%)CSi Mo、Ti、V5、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/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:C SiMn 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/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 SCu ≤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:执行标准牌号化学成分(%)执行标准牌号化学成分(%)CMn≤Si P SCu ≤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≤0.20执行标准牌号化学成分(%)CMn≤执行标准牌号化学成分(%)CSiMnMo.Ti.VBCrGB/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/T6478ML20VMnB 0.19~0.24≤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/T4171Q390GH 0.120.15~0.65≤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/T122265Mn 0.62~0.700.17~0.370.90~1.20.0350.0350.25(2)、合金弹簧钢牌号及化学成分:Si Mn≤执行标准牌号执行标准牌号化学成分(%)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(%)CGB/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:VW、Mo、BCrMo Cr P 执行标准牌号化学成分(%)CSi Mn执行标准牌号化学成分(%)C Si Mn执行标准牌号CSiMn P SGB/T12201Cr17Mn6Ni5N 0.1515.50~0.060.0316.00~18.007.5GB/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/T1220Y1Cr18Ni9Se 0.15 1.00 2.000.20.0617.00~19.00GB/T12200Cr18Ni90.07 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/T12200Cr17Ni12Mo2Ti 0.08 1.00 2.000.0350.0316.00~19.00GB/T122000Cr17Ni14Mo20.03 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/T12200Cr18Ni12Mo3Ti0.081.002.000.0350.0316.00~19.00≤执行标准牌号CrGB/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/T12200Crl8Ni13Si40.083.00~5.00 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 0.10~0.18 3.40~4.000.800.0350.0317.50~19.50GB/T122000Cr18Ni5Mo3Si20.03 2.00 1.00~2.000.0350.0318.00~19.00(3)铁素体不锈钢牌号及化学成分:CSi 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/T122000Cr27Mo 0.100.400.400.030.0225.00~27.50(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/T12201Cr120.150.51.000.0350.0311.50~13.00GB/T12201Cr130.151.001.000.0350.0311.50~13.50执行标准牌号化学成分(%)Cr≤≤执行标准牌号化学成分(%)Cr 化学成分(%)CrGB/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:P SGB/T12215Cr21Mn9Ni4N 0.48~0.580.358.00~1.000.040.03020.00~22.00GB/T12212Cr21Ni12N0.15~0.280.75~1.251.00~1.600.0350.03020.00~22.00Si Mn 执行标准牌号化学成分(%)Cr≤Cr ≤执行标准牌号化学成分(%)CGB/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 1.500.0350.03024.00~27.00CSi 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 1.000.040.03CSi Mn PS(2)、铁素体型耐热钢牌号及化学成分:执行标准牌号化学成分(%)(3)、马氏体型耐热钢牌号及化学成分:执行标准牌号化学成分(%)CrGB/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 0.10~0.160.60.60.0350.0310.50~12.00CSi Mn PS GB/T12210Cr17Ni4Cu4Nb 0.07 1.00 1.000.0350.0315.50~17.50GB/T12210Cr17Ni7Al 0.09 1.001.000.0350.0316.00~18.001、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≤0.400.0350.0300.25≤(4)、沉淀硬化物型耐热刚号及化学成分:Cr 执行标准牌号化学成分(%)Cr ≤三、工具钢牌号及化学成分:执行标准牌号≤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/T1298T13 1.15~1.35≤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/T1299W 1.05~1.25≤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≤0.6011.00~13.000.50~1.10Si Mn Cr WSi Mn Cr W.Mo 2、合金工具钢牌号及化学成分:(1)、量具刃具用钢牌号及化学成分:执行标准牌号化学成分(%)CC Si Mn Cr (2)、耐冲击工具钢牌号及化学成分:执行标准牌号化学成分(%)CWV V(3)、冷作模具钢牌号及化学成分:执行标准牌号化学成分(%)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≤0.404.75~5.501.60~2.400.60~1.00(4)、热作模具钢牌号及化学成分:(5)、无磁模具钢牌号及化学成分:执行标准牌号化学成分(%)CSi Mn Cr W Cr W VV执行标准牌号化学成分(%)C Si MnGB/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/T12993Cr2NiMo 0.32~0.400.20~0.400.60~0.801.70~2.000.25~0.400.85~1.153、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/T9943W12Cr4V5Co5 1.50~1.600.15~0.400.15~0.400.0300.0300.03(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/T9943W6Mp5Cr4V2Al1.05~1.200.20~0.600.15~0.400.0300.0300.3(6)、高速工具钢牌号及化学成分:执行标准牌号化学成分(%)CSi Mn Cr Mo Ni 执行标准牌号化学成分(%)CSi Mn 执行标准牌号化学成分(%)C Si Mn ≤。

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