各种钢种性能和化学成分参考

1、各钢种成分和性能标准参考号钢成分控制牌号执行标准化学成分CSiMnPSCrNiCu20#GB711880.170.240.170.370.350.650.0350.0400.250.250.2525#GB711880.220.300.170.370.500.800.0350.0400.250.250.2530#GB711880.270.350.170.370.500.800.0350.0400.250.250.2535#GB711880.320.400.170.370.500.800.0350.0400.250.250.2540#GB711880.370.450.170.370.500.800

2、.0350.0400.250.250.2545#GB711880.420.500.170.370.500.800.0350.0400.250.250.2550#GB711880.470.550.170.370.500.800.0350.0400.250.250.2555#GB711880.520.600.170.370.500.800.0350.0400.250.250.252030#力学性能要求:牌号力学性能，（热轧状态下）180冷弯抗拉强度6bMPa伸长率55%板厚a20mm20#2410228弯心直径d=a弯心直径d=2a25#三450224弯心直径d=2a弯心直径d=3a30#2490

3、222弯心直径d=2a弯心直径d=3a3555#2、力学性能要求:牌号力学性能，（热轧状态下）抗拉强度6bMPa伸长率55%35#253022040#257021945#260021750#262521655#264521320R成份控制：钢号执行标准化学成分，CMnSiSP20RGB6654-96W0.20.40.900.150.30不大于0.0300.0352、力学性能：牌号规格mm抗拉强度6bMPa屈服点6sMPa伸长率65,%温度。CV型冲击功akv（横向）J1800弯曲d-弯心直径3=试样厚度不大于不小于616400520245252031d=2a20R163623536603905

4、102252460100205Q235系列成份控制牌号等级化学成分，%CMnSiSP不大于Q235A0.140.220.300.650.300.0500.045B0.120.200.300.700.300.0450.045C0.180.350.800.300.0400.040D0.170.350.800.300.0350.035Q235A力学性能：牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率65,%1800弯曲d-弯心直径60100100200Q23516402252540602152460100205231001501952215018521Q235B力学性能：牌号规格mm质量等

5、级屈服点。sMpa抗拉强度。bMpa伸长率65,%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W6060100100200Q235W16B2353755002620C27d=1.5ad=2.5a3a16402252540602152460100205231001501952215018521Q235C力学性能：牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率65,%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W6060100100200Q235W16C235375500260C271.5a2.5a3a1640225254060215246010020523100150195

6、2215018521Q235D力学性能：牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率65,%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W6060100100200Q235W16D23537550026-20C341.5a2.5a3a16402252540602152460100205231001501952215018521Q345A钢板作业指导书1、成分控制：牌号质量等级化学成分%CWMnSiWPWSWVNbTiQ345A0.201.01.600.550.0450.0450.020.150.0150.0600.020.20B0.201.01.600.550.0400.04

7、00.020.150.0150.0600.020.202、力学性能要求：牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率5，%（不小于）1800弯曲d-弯心直径W1616-100Q345W16A34547063021d=2ad=3a1635325355029550100275Q345B力学性能要求：牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率5，%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W1616-100Q345W16B3454706302120C34d=2ad=3a1635325355029550100275Q345C、D、E钢板1、成份控制：牌号质量等级化学成

8、分CWMnSiWPWSWVNbTiA1三Q345C0.201.01.600.550.0350.0350.020.150.0150.0600.020.200.015D0.181.01.600.550.0300.0300.020.150.0150.0600.020.200.015E0.181.01.600.550.0250.0250.020.150.0150.0600.020.200.015牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率55,%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W1616100Q345W16C345470630220C34d=2ad=3a163532535

9、5029550100275牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率55，%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W1616100Q345W16E34547063022-40C27d=2ad=3a1635325355029550100275W16D34547063022-20C34d=2ad=3a1635325355029550100275Q460C1、成份控制：牌号质量等化学成分级CMnSiPSVNbTiAlCrNiQ460C0.201.001.700.550.0350.0350.020.200.0150.0600.020.200.0150.700.70牌号规格质量

10、等级屈服点。sMpa抗拉强度。bMpa伸长率5，%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径W1616100Q460W16C460550720170C34d=2ad=3a1635440355042050100400Q550D1、成份控制：牌号质量等级化学成分CWMnSiWPWSWVWNbWTiWMoWCrWNiWBWQ550D0.181.001.600.550.0300.0300.100.060.200.400.601.000.003牌号规格质量等级屈服点。sMpa抗拉强度。bMpa伸长率5，%温度冲击功（纵向）AKVJ1800弯曲d-弯心直径Q550W50D55067083016-20C40d=3a50100530S355J0、S355J21、成份控制：牌号化学成分C最大Mn最大Si最大P最大S最大N最大Cu最大W1616W4040S355J00.230.230.241.700.600.0400.0400.0140.60S355J20.230.230.241.700.600.0350.035-0.602、力学性能：钢号屈服点R(N/mm2)eh抗拉强度R(N/m2)MW1616W4040W6363W8080W100100W1501502003三3100150250S355J035534533532531529528551068047063