美制8级精制六角螺钉B18.2.1实际重量
美制内六角螺钉标准
美制内六角螺钉标准
美制内六角螺钉是一种常见的螺纹连接零件，它们符合美国国家标准（ANSI）和美国机械工程师协会（ASME）的标准。
这些标准规定了螺钉的尺寸、材料、力
学性能和测试方法，确保了螺钉在不同工程应用中的可靠性和互换性。
首先，美制内六角螺钉的尺寸标准包括直径、螺距和长度。
这些尺寸是根据螺
纹的直径和螺距来确定的，常见的尺寸包括1/4-20、5/16-18、3/8-16等。
此外，螺
钉的长度也有标准规定，通常以英寸为单位，例如1/4英寸、1/2英寸等。
这些尺
寸标准使得螺钉能够与其他零件配合使用，确保装配的精确度和可靠性。
其次，美制内六角螺钉的材料标准包括碳钢、合金钢和不锈钢等。
这些材料具
有不同的强度和耐腐蚀性能，可以满足不同工程环境的需求。
此外，材料的热处理和表面处理也有标准规定，以提高螺钉的力学性能和耐用性。
螺钉的力学性能标准包括拉伸强度、抗拉强度、硬度和扭矩等。
这些性能指标
是通过实验测试来确定的，确保螺钉在受到拉伸、剪切和扭矩载荷时能够保持稳定的连接性能。
此外，螺钉的测试方法也有详细的规定，包括拉伸试验、硬度测试和扭矩测试等。
总的来说，美制内六角螺钉标准是确保螺钉质量和性能的重要依据，它们不仅
适用于工业制造，也适用于建筑、汽车、航空航天等领域。
遵循这些标准可以保证螺钉的可靠性和互换性，减少因螺钉失效而导致的事故和损失。
因此，在选择和使用美制内六角螺钉时，应严格遵循相关的标准要求，以确保工程的安全和可靠性。
六角头螺栓(a和b级)(gb5782-86)mm
六角头螺栓（a和b级）（gb5782-86）mm 六角头螺栓(A和B级)(GB5782-86) mm 螺纹规格螺纹规格M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27)M30 M36 dl?12 14 16 18 22 26 30 34 38 42 46 50 54 60 66 78 125b125,参l?- - - - 28 32 36 40 44 48 52 56 60 66 72 84 考 200l,- - - - - - - 53 57 61 65 69 73 79 85 97 200max 0.4 0.4 0.5 0.5 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8c min 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.20.2 0.2 d max 3.6 4.7 5.7 6.8 9.2 11.2 13.7 15.7 17.7 20.2 22.4 24.4 26.4 30.4 33.4 39.4 smax 3 4 5 6 8 10 12 14 16 18 20 22 24 27 30 36 d A 2.86 3.82 4.825.82 9.78 9.87 11.73 13.73 15.73 17.73 19.67 21.67 23.67 - - - smin B - - 4.70 5.70 7.64 9.64 11.57 13.57 15.57 17.57 19.48 21.48 23.48 26.4829.48 35.38A 4.6 5.9 6.9 8.9 11.6 14.6 16.6 19.6 22.5 25.3 28.2 31.7 33.6 - - -d min wB - - 6.7 8.7 11.4 14.4 16.4 19.2 22 24.8 27.7 31.4 33.2 38 42.751.1A 6.07 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 30.14 33.5337.72 39.98 - - - e min B - - 8.63 10.89 14.20 17.59 19.85 22.78 26.17 29.56 32.95 37.29 39.55 45.2 50.85 60.79 f max 1 1.2 1.2 1.4 2 2 3 3 3 34 4 4 6 6 6 K公称 2 2.8 3.5 4 5.3 6.4 7.5 8.8 10 11.5 12.5 14 15 1718.7 22.5A 1.3 1.9 2.3 2.7 3.6 4.4 5.1 6 6.9 7.9 8.6 9.6 10.3 - - - K’ minB - - 2.3 2.6 3.5 4.3 5 6 6.8 7.8 8.5 9.5 10.2 11.7 12.8 15.5 r min 0.1 0.2 0.2 0.25 0.4 0.4 0.6 0.6 0.6 0.6 0.8 1 0.8 1 1 1 S公称 5.5 7 8 10 13 16 18 21 24 27 30 34 36 41 46 55 注: 1、A、B为产品等级，按GB3103.1-82的规定，A级最精确，C级最不精确。
美制内六角螺钉标准
美制内六角螺钉标准美制内六角螺钉是一种常见的紧固件，其标准化生产对于工业生产和机械制造具有重要意义。
美制内六角螺钉标准的制定和执行，不仅关乎产品质量和安全，还关系到国际贸易和合作。
本文将就美制内六角螺钉标准的相关内容进行介绍，以便更好地了解和应用这一标准。
首先，美制内六角螺钉的标准主要包括螺纹规格、材质要求、力学性能、表面处理、尺寸公差等方面。
螺纹规格是指螺钉螺纹的参数，包括螺距、螺纹直径、螺纹角等，这些参数的标准化可以确保螺钉与螺母的匹配性，从而保证紧固件的可靠性。
材质要求是指螺钉所采用的材料，通常包括碳钢、合金钢、不锈钢等，不同材质的螺钉在强度和耐腐蚀性能上有所差异，因此需要根据具体使用环境来选择合适的材料。
力学性能是指螺钉在受力时的性能要求，包括拉伸强度、抗拉强度、硬度等，这些性能的标准化可以保证螺钉在使用过程中不会出现断裂或变形。
表面处理是指螺钉表面的防腐蚀处理，通常采用镀锌、镀镍、磷化等方式，以增加螺钉的耐腐蚀性能。
尺寸公差是指螺钉各个尺寸参数的允许偏差范围，这些公差的标准化可以保证螺钉的尺寸精度和互换性。
其次，美制内六角螺钉标准的制定和执行对于企业和消费者都具有重要意义。
对于生产企业来说，严格执行标准可以保证产品质量和安全，提高企业的竞争力和声誉；对于消费者来说，标准化产品可以提供更加可靠和稳定的使用体验，保障消费者的权益和安全。
此外，标准化还有利于促进国际贸易和合作，使不同国家和地区的产品能够更好地互通和竞争，推动全球经济的发展。
最后，我们应该重视美制内六角螺钉标准的宣传和普及工作。
只有当更多的生产企业和消费者了解并遵守这一标准，才能真正发挥其作用。
同时，我们也应该不断完善和更新这一标准，以适应不断变化的市场需求和技术发展。
综上所述，美制内六角螺钉标准的制定和执行对于工业生产和机械制造具有重要意义，它不仅关乎产品质量和安全，还关系到国际贸易和合作。
我们应该重视这一标准，并积极推动其宣传和普及工作，以促进行业的健康发展和全球经济的繁荣。
美制六角螺栓标准对照表
Roc-master®Manufacturer & Supply Company上海锐迈五金有限公司Roc-Master®Hardware Co..,Ltd.吉安锐迈管道配件有限公司Roc-master ® Jian Piping Products Co.,Ltd.紧固件FastenersANSI/ASME STANDARDContents美制六角螺栓1 HEX BOLTSANSI / ASME B 18.2.1美制精制六角螺栓2 HEX CAP SCREWS （FINSHED HEX BOLTS）ANSI / ASME B 18.2.1美制双头螺栓及螺母3 STUD BOLTS AND NUTSASTM A193 B7 & A194 2H美制六角螺母4 FINISHED HEX NUTSANSI / ASME B 18.2.2美制重型六角螺母5 HEAVY HEX NUTSANSI / ASME B 18.2.2美制平垫圈6 PLAIN WASHERS TYPE AANSI / ASME B 18.22.1美制弹簧垫圈7 LOCK WASHERSANSI / ASME B 18.21.1螺栓及螺母材质要求8 MATERIAL SPECIFICATIONS FOR BOLTS AND NUTS螺栓及螺母机械性能要求9 TENSILE AND HARDNESS REQUIREMENTS FOR BOLTS AND NUTS10法兰用螺栓尺寸对照表DIMENSIONS OF FLANGE BOLTS (ANSI B16.5)金属紧固件表面处理技术简介11 BRIFE INTRODUCTION OF SURFACE TREATMENT OF FASTENERS美制六角螺栓HEX BOLTSANSI / ASME B18.2.1InchesEFor Bolt Lengths ≤6 in.For Bolt Lenghts>6 in.Max Basic Max Min Max Min Basic Max Min Max Min BasicBasic 1/40.25000.267/160.4380.4250.5050.48411/640.1880.1500.030.010.750 1.0005/160.31250.3241/20.5000.4840.5770.5527/320.2350.1950.030.010.875 1.1253/80.37500.3889/160.5620.5440.6500.6201/40.2680.2260.030.01 1.000 1.2507/160.43750.4525/80.6250.6030.7220.68719/640.3160.2720.030.01 1.125 1.3751/20.50000.5153/40.7500.7250.8660.82611/320.3640.3020.030.01 1.250 1.5005/80.62500.64215/160.9380.9060.983 1.03327/640.4440.3780.060.02 1.500 1.7503/40.75000.768 1 1/8 1.125 1.088 1.299 1.2401/20.5240.4550.060.02 1.750 2.0007/80.87500.895 1 5/16 1.312 1.269 1.516 1.44737/640.6040.5310.060.02 2.000 2.2501 1.0000 1.022 1 1/2 1.500 1.450 1.732 1.65343/640.7000.5910.090.03 2.250 2.5001 1/8 1.1250 1.149 1 11/16 1.688 1.631 1.949 1.8593/40.7800.580.090.03 2.500 2.7501 1/4 1.2500 1.277 1 7/8 1.875 1.812 2.165 2.06627/320.8760.7490.090.03 2.750 3.0001 3/8 1.3750 1.404 2 1/16 2.062 1.994 2.392 2.27329/320.9400.8100.090.03 3.000 3.2501 1/2 1.5000 1.531 2 1/4 2.250 2.175 2.598 2.4801 1.0360.9020.090.03 3.250 3.5001 3/4 1.7500 1.785 2 5/8 2.625 2.538 3.031 2.893 1 5/32 1.196 1.0540.120.04 3.750 4.0002 2.0000 2.0393 3.000 2.900 3.464 3.306 1 11/32 1.388 1.1750.120.04 4.250 4.5002 1/4 2.2500 2.305 3 3/8 3.375 3.262 3.897 3.719 1 1/2 1.548 1.3270.190.06 4.750 5.0002 1/2 2.5000 2.559 3 3/4 3.750 3.625 4.330 4.133 1 21/32 1.708 1.4790.190.06 5.250 5.5002 3/4 2.7500 2.827 4 1/8 4.125 3.988 4.763 4.546 1 13/16 1.869 1.6320.190.06 5.750 6.0003 3.0000 3.081 4 1/2 4.500 4.350 5.196 4.9592 2.060 1.8150.190.06 6.250 6.5003 1/4 3.2500 3.335 4 7/8 4.875 4.712 5.629 5.372 2 3/16 2.251 1.9360.190.06 6.7507.0003 1/2 3.5000 3.589 5 1/4 5.250 5.075 6.062 5.786 2 5/16 2.380 2.0570.190.067.2507.5003 3/4 3.7500 3.858 5 5/8 5.625 5.437 6.495 6.198 2 1/2 2.572 2.2410.190.067.7508.0004 4.00004.1116 6.000 5.800 6.928 6.612 2 11/16 2.764 2.4240.190.068.2508.500LT(Ref)Thread LengthWidth AcrossFlats Width Across ComersHead HeightF G H BodyDiaRadius of FilletNominal Sizeor BasicBolt DiaR美制精制六角螺栓HEX CAP SCREWSANSI / ASME B18.2.1InchesJRY For Bolt Lengths ≤6 in.For Bolt Lenghts>6 in.Max MIN Basic MaxMin Max Min Basic Max Min Min Max Max Min Max Min Min Basic Basic Max 1/40.25000.25000.257/160.440.4280.5050.4885/320.1630.1500.0160.0100.3000.2800.0870.0430.0150.750 1.0000.2505/160.31250.31250.311/20.5000.4890.5770.55713/640.2110.1950.1400.0110.3620.3420.0870.0430.0150.875 1.1250.2783/80.37500.37500.379/160.5620.5510.6500.62815/640.2430.2260.1600.0120.4250.4050.0870.0430.015 1.000 1.2500.3127/160.43750.43750.435/80.6250.6120.7220.6989/320.2910.2720.1950.0130.4880.4680.0870.0430.015 1.125 1.3750.3851/20.50000.50000.493/40.7500.7360.8660.8405/160.3230.3020.2150.0140.5500.5300.0870.0430.015 1.250 1.5000.4179/160.56250.56250.554513/160.8120.7980.9380.91023/640.3710.3480.2500.0150.6520.6020.1570.0780.020 1.375 1.6250.4555/80.62500.62500.6215/160.9380.9220.983 1.05125/640.4030.3780.2690.0170.7150.6650.1570.0780.020 1.500 1.7500.5003/40.75000.75000.74 1 1/8 1.125 1.100 1.299 1.25415/320.4830.4550.3250.0200.8400.7900.1570.0780.020 1.750 2.0000.5567/80.87500.87500.87 1 5/161.312 1.285 1.516 1.46535/640.5630.5310.3780.023 1.0050.9550.2270.1130.040 2.000 2.2500.6251 1.00001.00000.99001 1/2 1.500 1.469 1.732 1.67539/640.6270.5910.4160.026 1.190 1.1200.3320.1660.060 2.250 2.5000.7141 1/8 1.12501.1250 1.111 11/161.688 1.631 1.949 1.85911/160.7180.580.4610.029 1.315 1.2450.3320.1660.060 2.500 2.7500.7141 1/4 1.25001.2500 1.24 1 7/8 1.875 1.812 2.165 2.06625/320.8130.7490.5300.033 1.440 1.3700.3320.1660.060 2.750 3.0000.8331 3/8 1.37501.3750 1.36 2 1/162.062 1.994 2.392 2.27327/320.8780.8100.5690.036 1.565 1.4950.3320.1660.060 3.000 3.2500.8331 1/2 1.50001.50001.48802 1/4 2.250 2.175 2.598 2.48015/160.9740.9020.6400.039 1.690 1.6200.3320.1660.060 3.250 3.500 1.0001 3/4 1.75001.7500 1.74 2 5/8 2.625 2.538 3.031 2.8931 3/321.134 1.0540.7480.046 1.940 1.8700.3320.1660.060 3.750 4.000 1.0002 2.00002.0000 1.993 3.000 2.900 3.464 3.3061 7/321.263 1.1750.8250.052 2.190 2.1200.3320.1660.060 4.250 4.500 1.1112 1/4 2.25002.2500 2.24 3 3/8 3.375 3.262 3.897 3.719 1 3/8 1.423 1.3270.9330.059 2.440 2.3700.3320.1660.060 4.750 5.000 1.1112 1/2 2.50002.50002.48803 3/4 3.750 3.625 4.330 4.1331 17/321.583 1.479 1.0420.065 2.690 2.6200.3320.1660.060 5.250 5.500 1.2502 3/4 2.75002.7500 2.74 4 1/8 4.125 3.988 4.763 4.5461 11/161.744 1.632 1.1510.072 2.940 2.8700.3320.1660.060 5.750 6.000 1.25033.00003.00002.9880 4 1/24.500 4.3505.1964.959 1 7/8 1.935 1.8151.2900.0793.1903.1200.3320.1660.0606.2506.5001.250Thread LengthTransition Thread Length RunoutofBearingSurface FIRLT(Ref)Wren-ChingHeightEBody DiaRadius of Fillet La Fillet Length Fillet TransitionDia Ea Nominal Size or Basic Bolt DiaF G HWidth AcrossFlatsWidth Across Comers Head HeightRoc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853 美制双头螺栓及螺母STUD BOLTS AND NUTS ASTM A193 B7 & A194 2HASME B1.1 (UNC/8UN)美制六角螺母FINISHED NUTSANSI / ASME B 18.2.2FH G Kgs.per 10001/40.25000.4380.2260.505 3.335/160.31250.5000.2730.577 4.993/80.37500.5620.3370.6507.267/160.43750.6880.3850.79412.881/20.50000.7500.4480.86617.019/160.56250.8750.496 1.01026.445/80.62500.9380.559 1.08333.253/40.7500 1.1250.665 1.29953.987/80.8750 1.3120.776 1.51686.181 1.0000 1.5000.887 1.732128.371 1/8 1.1250 1.6880.999 1.949182.801 1/4 1.2500 1.975 1.049 2.165246.301 3/8 1.3750 2.062 1.206 2.382331.131 1/21.50002.250 1.317 2.598427.74Thread:UNC, UNF, Class 2B.d美制重型六角螺母HEAVY HEX NUTSANSI / ASME B 18.2.2FH G Kgs.per 10001/20.50000.8750.504 1.01029.679/160.56520.9380.568 1.08336.975/80.6250 1.0620.631 1.22753.983/40.7500 1.2500.758 1.44387.547/80.8750 1.4380.885 1.660134.721 1.0000 1.625 1.012 1.876192.741 1/8 1.1250 1.812 1.139 2.093268.531 1/4 1.2500 2.000 1.251 2.390356.531 3/8 1.3750 2.188 1.378 2.526462.671 1/2 1.5000 2.375 1.505 2.742594.221 5/8 1.6250 2.562 1.632 2.959734.831 3/4 1.7500 2.750 1.759 3.175925.341 7/8 1.8750 2.938 1.886 3.3921093.1822.00003.125 2.013 3.6081356.26Thread:UNC, UNF, Class 2B.d美制平垫圈PLAIN WASHERS TYPE AANSI / ASME B 18.22.1Plus MinusPlus Minus--0.0780.0000.0050.1880.0000.0050.0200.0250.016--0.0940.0000.0050.2500.0000.0050.0200.0250.016--0.1250.0080.0050.3120.0080.0050.0320.0400.025No.60.1380.1560.0080.0050.3750.0150.0050.0490.0650.03680.1640.1880.0080.0050.4380.0150.0050.0490.0650.036100.1900.2190.0080.0050.5000.0150.0050.0490.0650.0363/160.1880.2500.0150.0050.5620.0150.0050.0490.0650.036120.2160.2500.0150.0050.5620.0150.0050.0650.0800.0511/40.250N 0.2810.0150.0050.6250.0150.0050.0650.0800.0511/40.250W 0.3120.0150.0050.7340.0150.0070.0650.0800.0515/160.312N 0.3440.0150.0050.6880.0150.0070.0650.0800.0515/160.312W 0.3750.0150.0050.8750.0300.0070.0830.1040.0643/80.375N 0.4060.0150.0050.8120.0150.0070.0650.0800.0513/80.375W 0.4380.0150.005 1.0000.0300.0070.0830.1040.0647/160.438N 0.4690.0150.0050.9220.0150.0070.0650.0800.0517/160.438W 0.5000.0150.005 1.2500.0300.0070.0830.1040.0641/20.500N 0.5310.0150.005 1.0620.0300.0070.0950.1210.07441/20.500W 0.5620.0150.005 1.3750.0300.0070.1090.1320.0869/160.562N 0.5940.0150.005 1.1560.0300.0070.0950.1210.0749/160.562W 0.6250.0150.005 1.4690.0300.0070.1090.1320.0865/80.625N 0.6560.0300.007 1.3120.0300.0070.0950.1210.0745/80.625W 0.6880.0300.007 1.7500.0300.0070.1340.1600.1083/40.750N 0.8120.0300.007 1.4690.0300.0070.1340.1600.1083/40.750W 0.8120.0300.007 2.0000.0300.0070.1480.1770.1227/80.875N 0.9380.0300.007 1.7500.0300.0070.1340.1600.1087/80.875W 0.9380.0300.007 2.2500.0300.0070.1650.1920.1361 1.000N 1.0620.0300.007 2.0000.0300.0070.1340.1600.1081 1.000W 1.0620.0300.007 2.5000.0300.0070.1650.1920.1361 1/8 1.125N 1.2500.0300.007 2.2500.0300.0070.1340.1600.1081 1/8 1.125W 1.2500.0300.007 2.7500.0300.0070.1650.1920.1361 1/4 1.250N 1.3750.0300.007 2.5000.0300.0070.165 1.1920.1361 1/4 1.250W 1.3750.0300.007 3.0000.0300.0070.1650.1920.1361 3/8 1.375N 1.5000.0300.007 2.7500.0300.0070.1650.1920.1361 3/8 1.375W 1.5000.0450.010 3.2500.0450.0100.1800.2130.1531 1/2 1.500N 1.6250.0450.007 3.0000.0300.0070.1650.1920.1361 1/2 1.500W1.6250.0450.010 3.5000.0450.0100.1800.2130.1531 5/8 1.625 1.7500.0450.010 3.7500.0450.0100.1800.2130.1531 3/4 1.750 1.8750.0450.010 4.0000.0450.0100.1800.2130.1531 7/8 1.8752.0000.0450.010 4.2500.0450.0100.1800.2130.1532 2.000 2.1250.0450.010 4.5000.0450.0100.1800.2130.1532 1/4 2.250 2.3750.0450.010 4.7500.0450.0100.2200.2480.1932 1/2 2.500 2.6250.0450.010 5.0000.0450.0100.2380.2800.2102 3/4 2.750 2.8750.0650.010 5.2500.0650.0100.2590.3100.22833.0003.1250.0650.0105.5000.0650.0100.2840.3270.249CInside DiameterToleranceBasicMax.Min.Thickness Nominal Washer SizeBasicToleranceBasicA BOutside Diameter美制弹簧垫圈LOCK WASHERSANSI / ASME B 18.22.1InchesBW T+1/2WIDTH THICKNESS Min.Max.Max.Min.Min.No.60.1410.1480.2500.0470.03180.1680.1750.2930.0550.040100.1940.2020.3340.0620.047120.2210.2290.3370.0700.0561/40.2550.2630.4890.1090.0625/160.3180.3280.5860.1250.0783/80.3820.3930.6830.1410.0947/160.4460.4590.7790.1560.1091/20.5090.5230.8730.1710.1259/160.5720.5870.9710.1880.1415/80.6260.653 1.0790.2030.1563/40.7630.783 1.2710.2340.1887/80.8900.912 1.4640.2660.2191 1.017 1.042 1.6610.2970.2501 1/8 1.144 1.172 1.8530.3280.2811 1/41.271 1.3022.0450.3590.312WASHER SECTION SizeINSIDE DIAMETER OUTSIDE DIAMETERA螺栓及螺母材质要求MATERIAL SPECIFICATIONS FOR BOLTS AND NUTSTYPESPECIFICGRADEIDENTIFIC SYMBOLCMnP maxS maxSiNiCrMoOTHER ELEMENTSA307-94--A B ----0.0600.0400.1500.050--------A354-03a-BC-BD 0.28-0.55≤1 1/2"0.33-0.55>1 1/2"-0.0400.045----A193-03♠B5B6，B6X B7，B7M B165%Cr 12%Cr Cr-Mo Cr-Mo-V 0.10min 0.15max 0.37-0.490.36-0.47 1.00max 1.00max 0.65-1.100.45-0.700.0400.0400.0350.0350.0300.0300.0400.040 1.00max 1.00max 0.15-0.350.15-0.35---- 4.00-6.0011.50-13.500.75-1.200.80-1.150.40-0.65-0.15-0.250.50-0.65V0.25-0.35 AI 0.015A320-03♣L7,L7M,L70L7A,L71L7B,L72L7C,L73L43L1AISI4140AISI4037AISI4137AISI8740AISI4340-0.38-0.480.35-0.400.35-0.400.38-0.430.18-0.430.17-0.240.75-1.000.70-0.900.70-0.900.75-1.000.60-0.830.70-1.400.0350.0350.0350.0350.0350.0350.0400.0400.0400.0400.0400.0500.15-0.350.15-0.350.15-0.350.15-0.350.15-0.350.15-0.30---0.40-0.701.65-2.00-0.80-1.10-0.80-1.100.40-0.600.70-0.90-0.15-0.250.20-0.300.15-0.250.20-0.300.20-0.30- B 0.0001-0.003F O R S P E C I A L A P P L I C A T I O N S A540-00B21B22B23B24B24V Cr-Mo-V 4142-H E4340-H 4340 Mod.4340V Mod.0.36-0.440.39-0.460.37-0.440.37-0.440.37-0.440.45-0.700.65-1.100.60-0.950.70-0.900.60.0.950.0250.0250.0250.0250.0250.0250.0250.0250.0250.0250.15-0.350.15-0.350.15-0.350.15-0.350.15-0.35--1.55-2.001.65-2.001.55-2.000.80-1.150.75-1.200.65-0.950.70-0.950.60-0.950.50-0.650.15-0.250.20-0.300.30-0.400.40-0.60V0.25-0.35V0.04-0.10A193-03♠B8,B8A B8C,B8CA B8M,B8MA,B8M2,B8M3B8P,B8PA B8N,B8NA B8MN,B8MNA B8MLCuN B8MLCuNA B8T,B8TA B8R,B8RA B8S,B8SA B8LN,B8LNA B8MLN,B8MLNAAISI 304AISI 347AISI 316AISI 305AISI 30451AISI 31651S31254AISI 321S20910S21800AISI 30453AISI 316530.08max 0.08max 0.08max 0.12max 0.08max 0.08max 0.02max 0.08max 0.06max 0.10max 0.03max 0.03max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 1.00max 2.00max 4.00-6.007.00-9.002.00max 2.00max 0.0450.0450.0450.0450.0450.0450.0300.0450.0450.0600.0450.0450.0300.0300.0300.0300.0300.0300.0100.0300.0300.0300.0300.0301.00max 1.00max 1.00max 1.00max 1.00max 1.00max 0.80max 1.00max 1.00max 3.50-4.501.00max 1.00max 8.0-11.09.0-12.010.0-14.011.0-13.08.0-11.010.0-13.017.6-18.59.0-12.011.5-13.58.0-9.08.0-11.010.0-13.018.0-20.017.0-19.016.0-18.017.0-19.018.0-20.016.0-18.019.5-20.517.0-19.020.5-23.516.0-18.018.0-20.016.0-18.0--2.00-3.00--2.00-3.006.00-6.50-1.50-3.00--2.00-3.00nb+ta=10xc,min;1.10maxN 0.10-0.16N 0.10-0.16N 0.18-0.22 Co 0.50-1.00Ti=5X(C+N)min;0.70max N 0.2-0.4 Co 0.1-0.3 V 0.1-0.3N0.08-0.18N0.10-0.16N0.10-0.16A320-03♣B8,B8A B8C,B8CA B8T,B8TA B8P,B8PA B8F,B8FA B8M,B8MA B8LN.B8LNA B8MLN,B8MLNAAISI 304AISI 347AISI 321AISI 305303303Se AISI 316AISI 304N AISI 316N 0.08max 0.08max 0.08max 0.08max 0.15max 0.15max 0.08max 0.03max 0.03max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 2.00max 0.0450.0450.0450.0450.2000.2000.0450.0450.0450.0300.0300.0300.0300.15min 0.0600.0300.0300.030 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max 8.0-10.59.0-13.09.0-12.010.5-13.08.0-10.08.0-10.010.0-14.08.0-10.510.0-14.018.0-20.017.0-19.017.0-19.017.0-19.017.0-19.017.0-19.016.0-18.018.0-20.016.0-18.0------2.00-3.00-2.00-3.00nb+ta=10xc,min Ti=5xC,minSe 0.15-0.35N 0.10-0.16N0.10-0.16F O R B O L T I NGHI G H -T E M P E R .A453-03♠S66286S63198S66220S665456606516626650.08max 0.28-0.350.08max 0.08max2.00max 0.75-1.500.40-1.001.25-2.000.0400.0400.0400.0400.0300.0300.0300.0301.00max 0.30-0.800.40-1.000.10-0.8024.0-27.08.0-11.024.0-28.024.0-28.013.5-16.018.0-21.012.0-15.012.0-15.01.00-1.501.00-1.752.0-3.51.25-2.25Ti 1.90-2.35 AI 0.35max V0.10-0.50 B 0.001-0.01W 1.00-1.75 Ti 0.10-0.35 Nb 0.25-0.60Ti 1.80-2.10 AI 0.35max Cu0.50max B0.001-0.01Ti 0.35max AI 0.25max Cu0.01-0.07MATERIAL SPECIFICATIONS FOR NUTS A307-04-B --0.0400.050----A194-03b ♦ 2.2H, 2HM -0.40min 1.00max0.0400.0500.40max ---A L L O Y S T E E L SA194-03B♦47.7M AISI 4140/4142/4145/4140H/4142H/4145H 0.40-0.500.37-0.490.70-0.900.65-1.100.0350.0350.0400.0400.15-0.350.15-0.35---0.75-1.200.20-0.300.15-0.25S T A I N L E S S S T E E L SA194-03B♦8F,8FA8.8A 8C,8CA 8M,8MA 8T,8TA 8F,8FA 8F,8FAAISI 304AISI 347AISI 316AISI 321AISI 303AISI 303se0.08max 0.08max 0.08max 0.08max 0.015min 0.015max2.00max 2.00max 2.00max 2.00max 2.00max 2.00max0.0450.0450.0450.0450.0200.0200.0300.0300.0300.0300.15min 0.060 1.00max 1.00max 1.00max 1.00max 1.00max 1.00max8.00-11.009.00-12.0010.00-14.009.00-12.008.00-10.008.00-10.0018.00-20.0017.00-19.0016.00-18.0017.00-19.0017.00-19.0017.00-19.00--2.00-3.00---Co+Ta=10xC. Min Ti=5X(C+N)min; 0.70maxSe=0.15 min♣ - FOR LOW - TEMPERATURE SERVICE♠ - FOR HIGH-TEMPERATURE SERVICE♦ - FOR BOLTS FOR HIGH-PRESSURE AND HIGH-TEMPERATURE SERVICEA C C .I N O S S I D AB I L I 0S T A I N L E S S S .C A R N O NS T E E L SASTM SpecificationsCHEMICAL REQUIREMENTS %A C C I A I L E G A T I -A L L O Y S T E E L S C A RB O N S T E E L S螺栓及螺母机械性能要求TENSILE AND HARDNESS REQUIREMENTS FOR BOLTS NUTSmin max min maxA307-A B 415415606018121121241212696910095<3"<3"A354-03a-BC 255235311311262236331/4" - 2 1/2">2 1/2"-BD 311293363363333139391/4" - 2 1/2">2 1/2"A193-034-6%cr B5690100550801650≤4"13%Cr B6760110585851550≤4"13%Cr B6X 62090485701650≤4"Cr-Mo B78601257201051650≤2 1/2"Cr-Mo B7M 690100550801850≤2 1/2"Cr-Mo-VB168601257251051850≤2 1/2"A320-03-L7,L7A,L7B,L7C,L70,L71,L72,L738601257251051650L438601257251051650L7M 690100550801850L18601257251051650A540-00B218271207241051550241285≤2"B228271207241051550248293≤2"B238271207241051550248311≤2"B248271207241051550248311≤2"B24V A193-03CLASS1&1D B8N,B8M,B8P B8LN,B8MLN CLASS1B8C,B8T CLASS1A B8A,B8CA,B8MA,B8PA,B8TA,B8LNA,B8NA,B8MNA,B8MLCuNA CLASS1B&1D B8N,B8MN,B8MLCuN55080240353040CLASS1C&1D B8R CLASS1C B8RA CLASS1C&1D B8S CLASS1C B8SACLASS28601256901001235CLASS2760110665961545CLASS2B65595515752540A320-03CLASS1B8,B8C,B8M,B8P,B8F,B8T,B8LN,B8MLN 51575205303050CLASS1A B8A,B8CA,B8MA,B8PA,B8FA,B8TA,B8LNA,B8MLNA8601256901001235≤3/4"7951155508015303/4-1"7251054506520351"-1 1/4"690100345502845 1 1/4" - 1 1/2"760110655951545≤3/4"6901005508025453/4" - 1"655954506525451"-1 1/4"62090345503045 1 1/4"-1 1/2"A453-03CLASS\B\C 66089513058585151824834124HRC 37HRC CLASS D 660895130725105151824832124HRC 35HRC 651690100485701835217277≤3"651690100415601835217277>3"65165595415601835212269≤3"65165595345501835212269>3"CLASS A 66289513058585151824832124HRC 35HRC CLASS B 66286012555080151824832124HRC 35HRC CLASS A 6651170170830120121531138832HRC 41HRC CLASS B6651170155830120121531138832HRC41HRCB ScaleA194-03B215935284 min2H 24832724-352HM,7M 15923722max 3,4,7,1624832724-358,8C,8M,8T,8F,8P,8N 12630060-1058A,8CA,8MA,8TA 30019260-90ROCKWELL HARDNESS C Scale -ATSM Specifications 29HRC 93HRB 28HRC CLASS A CLASS B TENSILE STRENGT H min.Ksi S min.0.2%Mpa YIELDSTRENGTH min.0.2%offsetksi 95HRB SPECIFICGRADE OR CLASSGRADE OR SYMBOLRminMPa96HRB max 96HRB max 90HRB max ELONGAT.In 2" min %REDUTIONOF AREA %DIAMETERS 321HB max 26HRC max 35HRC max BRINELL ROCKWELL B-C ScaleHARDNESS 235HB max 321HB max99HRB max 35HRC max99HRB maxCLASS5B8,B8C,B8P,B8T,B8N,B8M,B8MN,B8MLCuN,B8,B8M25156656907510095205305550235HB max30223HB max192HB max233HB max 50223HB max B8MCLASS23535380345321HB max B8,B8C,B8P,B8F,B8T321HB max 271HB max 271HB max 5555321HB max 35HRC max35HRC max96HRB max90HRB max23HB max192HB max96HRB max 28HRB max 28HRB max 35HRC max Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853 法兰用螺栓尺寸对照表DIMENSIONS OF FLANGE BOLTS (ANSI B16.5)InchesMachin e Bolt Length 六角螺栓长度Machin e BoltLength 六角螺栓长度Machin e Bolt Length 六角螺栓长度Machine BoltLength六角螺栓长度Machin e Bolt Length 六角螺栓长度Machin e BoltLength六角螺栓长度0.06"Raised Face RF 面0.06"Raised Face RF 面Ring Joint RTJ 面0.06"Raised Face RF 面0.06"Raised Face RF 面Ring Joint RTJ 面0.25"Raised Face RF 面Mate-FemaleTongue-Groove.凹凸面，舌槽面Ring JointRTJ 面0.25"Raised Face RF 面Mate-FemaleTongue-Groove.凹凸面，舌槽面Ring JointRTJ 面0.25"Raised Face RF 面Mate-Female Tongue-Groove.凹凸面，舌槽面Ring Joint RTJ 面0.25"Raised Face RF 面Mate-FemaleTongue-Groove.凹凸面，舌槽面Ring Joint RTJ 面1/241/2 2.00 2.25-41/2 2.25 2.50 3.0041/2 3.00 2.75 3.0043/4 4.25 4.00 4.2543/4 4.25 4.00 4.2543/4 4.75 4.50 4.753/441/2 2.00 2.50-45/8 2.50 3.00 3.5045/8 3.50 3.25 3.5043/4 4.50 4.25 4.5043/4 4.50 4.25 4.5043/4 5.00 4.75 5.00141/2 2.25 2.50 3.0045/8 2.50 3.00 3.5045/8 3.50 3.25 3.5047/8 5.00 4.75 5.0047/8 5.00 4.75 5.0047/8 5.50 5.25 5.501 1/441/2 2.25 2.75 3.2545/8 2.75 3.25 3.7545/8 3.75 3.50 3.7547/8 5.00 4.75 5.0047/8 5.00 4.75 5.0041 6.00 5.75 6.001 1/245/8 2.50 2.75 3.2543/4 3.00 3.50 4.0043/4 4.25 4.00 4.2541 5.50. 5.25 5.5041 5.50 5.25 5.504 1 1/8 6.75 6.50 6.75245/8 2.75 3.25 3.7545/8 3.00 3.50 4.0085/8 4.25 4.00 4.2587/8 5.75 5.50 5.7587/8 5.75 5.50 5.75817.00 6.757.002 1/245/8 3.00 3.50 4.0043/4 3.25 4.00 4.5083/4 4.75 4.50 4.7581 6.25 6.00 6.2581 6.25 6.00 6.258 1 1/87.757.508.00345/8 3.00 3.50 4.0043/4 3.50 4.25 4.7583/4 5.00 4.75 5.0087/85.755.50 5.758 1 1/87.006.757.008 1 1/48.758.509.003 1/285/8 3.00 3.50 4.0083/4 3.75 4.25 5.0087/8 5.50 5.25 5.50483/4 3.00 3.50 4.0083/4 3.75 4.50 5.0087/8 5.75 5.50 5.758 1 1/8 6.75 6.50 6.758 1 1/47.757.507.758 1 1/210.009.7510.25583/4 3.25 3.75 4.2583/4 4.25 4.75 5.2581 6.50 6.25 6.508 1 1/47.507.257.508 1 1/29.759.509.758 1 3/411.7511.5012.25683/4 3.25 4.00 4.5083/4 4.25 4.75 5.50121 6.75 6.50 6.7512 1 1/87.507.257.7512 1 3/810.2510.0010.508213.5013.2514.00883/4 3.50 4.25 4.7587/8 4.75 5.50 6.0012 1 1/87.507.257.7512 1 3/88.758.508.7512 1 5/811.5011.2512.7512215.0014.7515.5010127/8 4.00 4.50 5.00121 5.50 6.25 6.7516 1 1/48.508.258.5016 1 3/89.259.009.2512 1 7/813.2513.0013.5012 2 1/219.2519.0020.0012127/8 4.00 4.75 5.2512 1 1/8 5.75 6.757.2520 1 1/48.758.508.7520 1 3/810.009.7510.0016214.7514.5015.25122 3/421.2521.0022.0014121 4.50 5.25 5.7512 1 1/8 6.257.007.5020 1 3/89.259.009.2520 1 1/210.7510.5011.0016 2 1/416.0015.7516.7516161 4.50 5.25 5.7516 1 1/4 6.507.508.0020 1 1/210.009.7510.0020 1 5/811.2511.0011.5016 2 1/217.5017.2518.501816 1 1/8 5.00 5.75 6.2516 1 1/4 6.757.758.2520 1 5/810.7510.5010.7520 1 7/812.7512.5013.2516 2 3/419.5019.2520.7520201 1/85.506.256.75201 1/47.258.008.7524 1 5/811.2511.0011.5020213.7513.5014.2516321.2521.0022.252420 1 1/4 6.00 6.757.2520 1 1/28.009.0010.00241 7/813.0012.7513.25202 1/217.2517.0018.00163 1/224.2524.0025.50Length of stud bolt dows not include the height of the chamfered part.双头螺栓长度不包括倒角高度法兰尺寸>24"时螺栓直径=螺栓孔直径-3mmRF面法兰 螺栓长度=2x法兰厚度+3mm+2x螺栓直径+1/2"RTJ面法兰 螺栓长度=2x法兰厚度+RTJ高度+3x螺栓直径双头螺栓重量计算公式：直径x直径x6.17x长度/1000x1.1=千件重量（KG）2500LBDiam. Of Bolts螺栓直径Stud Bolr Length双头螺栓长度Nu mbe r of Hol es 法兰孔数量300LBNumber of Hol es 法兰孔数量Nu mbe r of Hol es 法兰孔数量Numbe r of Hol es 法兰孔数量Nu mber of Hol es 法兰孔数量900LBDiam. Of Bolts螺栓直径Stud Bolr Length 双头螺栓长度1500LBDiam. OfBolts 螺栓直径Stud Bolr Length 双头螺栓长度600LBStud Bolr Length 双头螺栓长度Diam. Of Bolts螺栓直径Diam. OfBolts 螺栓直径150LBStud Bolr Length 双头螺栓长度Nom.PipeSize法兰尺寸Stud Bolr Length 双头螺栓长度Nu mbe r of Hol es 法兰孔数量Diam. Of Bolts 螺栓直径Roc-Master Hardware Co.,Ltd. T:86 21 6853 9080 F:86 21 6853 金属紧固件表面处理技术简介BRIEF INTRODUCTION OF SURDACE TREARMENTS OF FASTENERS电镀锌（Zinc Electroplating）电镀锌技术是一种传统的金属表面涂层处理技术它为金属表面提供基本的抗腐蚀性。
美制内六角螺钉标准
美制内六角螺钉标准美制内六角螺钉是一种常见的紧固件，它具有内六角形状的头部，适用于需要扭矩传递的场合。
在工业生产和日常生活中，美制内六角螺钉被广泛应用于机械设备、汽车制造、家具组装等领域。
为了确保产品质量和安全性，美制内六角螺钉必须符合一定的标准。
本文将介绍美制内六角螺钉的相关标准，以便读者更好地了解和应用这一紧固件。
首先，美制内六角螺钉的标准主要包括材料、尺寸、力学性能等方面。
在材料方面，美制内六角螺钉通常采用碳钢、合金钢、不锈钢等材料制造。
这些材料必须符合相关的化学成分和机械性能要求，以保证螺钉的使用寿命和可靠性。
在尺寸方面，美制内六角螺钉的直径、长度、螺纹规格等参数必须符合标准尺寸，以便与其他零部件匹配和组装。
此外，美制内六角螺钉的力学性能也是标准的重要内容，包括抗拉强度、抗剪强度、扭矩承载能力等指标，这些性能直接关系到螺钉在使用过程中的可靠性和安全性。
其次，美制内六角螺钉的标准还涉及到表面处理、标识和包装等内容。
在表面处理方面，美制内六角螺钉可以采用镀锌、镀镍、磷化等方式进行防腐蚀处理，以延长螺钉的使用寿命。
同时，螺钉的表面还需要进行喷码或刻字标识，以便用户识别和追溯产品信息。
此外，美制内六角螺钉的包装也必须符合标准要求，保证运输和储存过程中不受损坏，以及便于管理和使用。
最后，为了确保美制内六角螺钉的质量和可靠性，标准化组织和行业协会制定了一系列的测试方法和检验规程。
这些测试方法包括拉伸试验、扭矩试验、螺纹检测、表面粗糙度检测等，通过这些测试方法可以评估螺钉的性能和质量。
同时，检验规程也规定了螺钉的外观质量、尺寸偏差、包装完整性等方面的要求，以确保产品符合标准要求。
综上所述，美制内六角螺钉标准涉及到材料、尺寸、力学性能、表面处理、标识、包装和检验等多个方面。
只有严格遵循这些标准要求，才能生产出质量可靠的美制内六角螺钉产品，确保其在各种工程和应用中发挥良好的作用。
希望本文的介绍能够帮助读者更好地理解和应用美制内六角螺钉标准，促进相关行业的发展和进步。
美标内六角螺栓标准
美标内六角螺栓标准
美标内六角螺栓是一种常见的机械连接件，其标准为ANSI/ASME
B18.3。
这种螺栓的头部是内六角形状，内孔深度为标称螺纹直径的一半。
尺寸范围从#0到2英寸。
美标内六角螺栓的强度等级包括2、5、
8级，其中8级是最高强度的。
美标内六角螺栓是一种十分重要的连接件，广泛用于车辆、机械、建筑等领域。
其标准化设计使得使用和替换变得更加方便，能够提高
安全性和可靠性。
在使用美标内六角螺栓时，要严格遵守标准要求，
选择合适的材料和强度等级，以确保连接的稳定性和可靠性。