鋼牌號(hào)與化學(xué)成分

1、鋼鋼牌牌號(hào)號(hào)及及化化學(xué)學(xué)成成分分1、普通碳素結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分（%）C CSiSiMnMnP P S S GB700-1988GB700-1988Q195Q1950.060.120.120.300.250.500.0450.050Q215AQ215A0.090.150.120.300.250.550.0450.050Q315BQ315B0.090.150.120.300.250.550.0450.045Q235AQ235A0.140.220.120.300.300.650.0450.050Q335BQ335B0.120.200.120.300.300.700.0450.

2、045Q235CQ235C0.180.120.300.350.800.0400.040Q235DQ235D0.170.120.300.350.800.0300.030Q255AQ255A0.180.280.120.300.400.700.0450.050Q255BQ255B0.180.280.120.300.400.700.0450.045Q275Q2750.280.380.150.350.50.800.0450.0502、優(yōu)質(zhì)碳素結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分（%）C CSiSiMnMnP P S S CrCrNiNiCuCuGB/T69908F 0.050.110.030.25

3、0.500.0350.0350.10.30.25GB/T69910F0.070.130.070.250.500.0350.0350.150.30.25GB/T69915F0.120.180.070.250.500.0350.0350.250.30.25GB/T69980.050.110.170.370.350.650.0350.0350.10.30.25GB/T699100.070.130.170.370.350.650.0350.0350.150.30.25GB/T699150.120.180.170.370.350.650.0350.0350.250.30.25GB/T699200.170

4、.230.170.370.350.650.0350.0350.250.30.25GB/T699250.220.290.170.370.500.800.0350.0350.250.30.25GB/T699300.270.340.170.370.500.800.0350.0350.250.30.25GB/T699350.320.390.170.370.500.800.0350.0350.250.30.25GB/T699400.370.440.170.370.500.800.0350.0350.250.30.25GB/T699450.420.500.170.370.500.800.0350.0350

5、.250.30.25GB/T699500.470.550.170.370.500.800.0350.0350.250.30.25GB/T699550.520.600.170.370.500.800.0350.0350.250.30.25GB/T699600.570.650.170.370.500.800.0350.0350.250.30.25GB/T699650.620.700.170.370.500.800.0350.0350.250.30.25GB/T699700.670.750.170.370.500.800.0350.0350.250.30.25GB/T699750.720.800.1

6、70.370.500.800.0350.0350.250.30.25GB/T699800.770.850.170.370.500.800.0350.0350.250.30.25GB/T699850.820.900.170.370.500.800.0350.0350.250.30.25GB/T699Mn150.120.180.170.370.701.000.0350.0350.250.30.25GB/T699Mn200.170.230.170.370.701.000.0350.0350.250.30.25GB/T699Mn250.220.290.170.370.701.000.0350.0350

7、.250.30.25GB/T699Mn300.270.340.170.370.701.000.0350.0350.250.30.25GB/T699Mn350.320.390.170.370.701.000.0350.0350.250.30.25GB/T699Mn400.370.440.170.370.701.000.0350.0350.250.30.25GB/T699Mn450.420.500.170.370.701.000.0350.0350.250.30.25GB/T699Mn500.480.560.170.370.701.000.0350.0350.250.30.25GB/T699Mn6

8、00.570.650.170.370.701.000.0350.0350.250.30.25GB/T699Mn650.620.700.170.370.901.200.0350.0350.250.30.25GB/T699Mn700.670.750.170.370.901.200.0350.0350.250.30.253、低合金高度結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分（%）CMnSiPSCrNiVNbTiAL GB/T1591Q295A0.160.801.500.550.0450.0450.020.150.0150.0600.020.20GB/T1591Q395B0.160.801.500.5

9、50.040.040.020.150.0150.0600.020.20GB/T1591Q345A0.20.101.600.550.0450.0450.020.150.0150.0600.020.20GB/T1591Q345B0.20.101.600.550.040.040.020.150.020.200.020.20GB/T1591Q345C0.20.101.600.550.0350.0350.020.150.020.200.020.200.015GB/T1591Q345D0.180.101.600.550.030.030.020.150.020.200.020.200.015GB/T1591

10、Q345E0.180.101.600.550.0250.0250.020.150.020.200.020.200.015GB/T1591Q345A0.20.101.600.550.0450.0450.30.70.020.200.020.200.020.20GB/T1591Q390B0.20.101.600.550.040.040.30.70.020.200.020.200.020.20GB/T1591Q390C0.20.101.600.550.0350.0350.30.70.020.200.020.200.020.200.015GB/T1591Q390D0.20.101.600.550.030

11、.030.30.70.020.200.020.200.020.200.015GB/T1591Q390E0.20.101.600.550.0250.0250.30.70.020.200.020.200.020.200.015GB/T1591Q420A0.21.001.700.550.0450.0450.40.70.020.200.020.200.020.20GB/T1591Q420B0.21.001.700.550.040.040.40.70.020.200.020.200.020.20GB/T1591Q420C0.21.001.700.550.0350.0350.40.70.020.200.0

12、20.200.020.200.015GB/T1591Q420D0.181.001.700.550.030.030.40.70.020.200.020.200.020.200.015GB/T1591Q420E0.181.001.700.550.0250.0250.40.70.020.200.020.200.020.200.015GB/T1591Q460C0.21.001.700.550.0350.0350.70.70.020.200.020.200.020.200.015GB/T1591Q460D0.21.001.700.550.030.030.70.70.020.200.020.200.020

13、.200.015GB/T1591Q460E0.21.001.700.550.030.030.70.70.020.200.020.200.020.200.0154、合金機(jī)構(gòu)鋼牌號(hào)及化學(xué)成分（1）、錳合金機(jī)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiCuGB/T307720Mn20.170.240.170.371.401.800.0350.0350.30.30.3GB/T307730Mn20.270.340.170.371.401.800.0350.0350.30.30.3GB/T307735Mn20.320.390.170.371.401.800.0350.0350.30

14、.30.3GB/T307740Mn20.370.440.170.371.401.800.0350.0350.30.30.3GB/T307745Mn20.420.490.170.371.401.800.0350.0350.30.30.3GB/T307750Mn20.470.550.170.371.401.800.0350.0350.30.30.3(2)、錳釩合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：GB/T1591Q345B0.20.101.600.550.040.040.020.150.020.200.020.20GB/T1591Q345C0.20.101.600.550.0350.0350.020.150.

15、020.200.020.200.015GB/T1591Q345D0.180.101.600.550.030.030.020.150.020.200.020.200.015GB/T1591Q345E0.180.101.600.550.0250.0250.020.150.020.200.020.200.015GB/T1591Q345A0.20.101.600.550.0450.0450.30.70.020.200.020.200.020.20GB/T1591Q390B0.20.101.600.550.040.040.30.70.020.200.020.200.020.20GB/T1591Q390C

16、0.20.101.600.550.0350.0350.30.70.020.200.020.200.020.200.015GB/T1591Q390D0.20.101.600.550.030.030.30.70.020.200.020.200.020.200.015GB/T1591Q390E0.20.101.600.550.0250.0250.30.70.020.200.020.200.020.200.015GB/T1591Q420A0.21.001.700.550.0450.0450.40.70.020.200.020.200.020.20GB/T1591Q420B0.21.001.700.55

17、0.040.040.40.70.020.200.020.200.020.20GB/T1591Q420C0.21.001.700.550.0350.0350.40.70.020.200.020.200.020.200.015GB/T1591Q420D0.181.001.700.550.030.030.40.70.020.200.020.200.020.200.015GB/T1591Q420E0.181.001.700.550.0250.0250.40.70.020.200.020.200.020.200.015GB/T1591Q460C0.21.001.700.550.0350.0350.70.

18、70.020.200.020.200.020.200.015GB/T1591Q460D0.21.001.700.550.030.030.70.70.020.200.020.200.020.200.015GB/T1591Q460E0.21.001.700.550.030.030.70.70.020.200.020.200.020.200.0154、合金機(jī)構(gòu)鋼牌號(hào)及化學(xué)成分（1）、錳合金機(jī)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiCuGB/T307720Mn20.170.240.170.371.401.800.0350.0350.30.30.3GB/T307730Mn20

19、.270.340.170.371.401.800.0350.0350.30.30.3GB/T307735Mn20.320.390.170.371.401.800.0350.0350.30.30.3GB/T307740Mn20.370.440.170.371.401.800.0350.0350.30.30.3GB/T307745Mn20.420.490.170.371.401.800.0350.0350.30.30.3GB/T307750Mn20.470.550.170.371.401.800.0350.0350.30.30.3（2）、錳釩合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CS

20、iMnPSCrNiVGB/T307720MnV1.700.241.700.371.301.600.0350.0350.30.30.070.12（3）、硅錳合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiGB/T307727SiMn0.240.321.101.401.101.400.0350.0350.30.3GB/T307735SiMn0.320.401.101.401.101.400.0350.0350.30.3GB/T307742SiMn0.390.451.101.401.101.400.0350.0350.30.3（4）、硅錳鉬礬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分執(zhí)行標(biāo)準(zhǔn)牌

21、號(hào)化學(xué)成分(%)CSiMnPSCrNiMoVGB/T307720SiMn2MoV0.170.230.901.202.202.600.0350.0350.30.30.300.400.050.12GB/T307825SiMn3MoV0.220.280.901.202.202.600.0350.0350.30.30.300.400.050.12GB/T3078 37SiMn3MoV 0.330.39 0.901.20 1.601.90 0.035 0.035 0.3 0.3 0.3 0.400.50 0.050.12(5)、硼合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNi

22、BGB/T307740B0.370.440.170.370.600.900.0350.0350.30.30.00050.0035GB/T307745B0.420.490.170.370.600.900.0350.0350.30.30.00050.0035GB/T307750B0.470.550.170.370.600.900.0350.0350.30.30.00050.0035（6）、錳硼合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiBGB/T307740MnB0.370.440.170.371.101.400.0350.0350.30.30.00050.0035G

23、B/T307745MnB0.420.490.170.371.101.400.0350.0350.30.30.00050.0035(7)、錳鉬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiBGB/T307720MnMoB0.160.220.170.370.600.900.0350.0350.30.30.00050.0035(8)、錳礬硼合金機(jī)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiVBGB/T307715MnVB0.120.180.170.371.201.600.0350.0350.30.30.070.0120.00050.0035GB/T

24、307720MnVB0.170.230.170.371.101.400.0350.0350.30.30.070.0120.00050.0035GB/T307740MnVB0.370.440.170.371.301.500.0350.0350.30.30.070.0120.00050.0035（9）、錳鈦合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiVBRE GB/T307720MnTiB0.170.240.170.371.301.500.0350.0350.30.30.040.100.00050.0035GB/T307725MnTiBRE0.220.280.200.

25、451.301.600.0350.0350.30.30.040.100.00050.00350.05(10)、鉬鉻金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrPSNiCuGB/T307715Cr0.120.180.170.370.400.700.701.000.0350.0350.30.3GB/T307715CrA0.120.170.170.370.400.700.701.000.0250.0250.30.3GB/T307720Cr0.180.240.170.370.500.800.701.000.0350.0350.30.3GB/T307730Cr0.270.340.17

26、0.370.500.800.801.100.0350.0350.30.3GB/T307735Cr0.320.390.170.370.500.800.801.100.0350.0350.30.3GB/T307740Cr0.370.440.170.370.500.800.801.100.0350.0350.30.3GB/T307745Cr0.420.490.170.370.500.800.801.100.0350.0350.30.3GB/T307750Cr0.470.540.170.370.500.700.801.100.0350.0350.30.3(11)、鉻硅合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)

27、牌號(hào)化學(xué)成分(%)CSiMnCrMoPSNiCuGB/T307712CrMo0.800.120.170.370.400.700.400.700.400.550.0350.0350.30.3GB/T307715CrMo0.120.180.170.370.400.700.801.100.400.550.0350.0350.30.3GB/T307720CrMo0.170.240.170.370.400.700.801.100.150.250.0350.0350.30.3GB/T307730CrMo0.260.340.170.370.400.700.801.100.150.250.0350.0350.

28、30.3GB/T307730CrMoA0.260.330.170.370.400.700.801.100.150.250.0250.0250.30.3GB/T307735CrMo0.320.400.170.370.400.700.801.100.150.250.0350.0350.30.3GB/T307742CrMo0.380.450.170.370.500.800.901.200.150.250.0350.0350.30.3（12）、鉻鉬合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrPSNiCuGB/T307742CrSi0.350.431.001.300.300.601.

29、301.600.0350.0350.30.3(13)、鉻鉬礬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrMoPSNiCuVGB/T307712CrMoV0.080.150.170.370.400.700.300.600.250.350.0350.0350.30.30.150.30GB/T307735CrMoV0.300.380.170.370.400.701.001.300.200.300.0350.0350.30.30.100.20GB/T307712Cr1MoV0.080.150.170.370.400.700.901.200.250.350.0350.0350.30

30、.30.150.30GB/T307725Cr2MoVA0.220.290.170.370.400.701.501.800.250.350.0250.0250.30.30.150.30GB/T307725Cr2Mo1VA0.220.290.170.370.500.802.102.500.901.100.0250.0250.30.30.300.50（14）、鉻鉬鋁合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrMoPSNiCuA1GB/T307738CrMoVA10.350.420.200.450.300.601.351.650.150.250.0350.0350.30.30.70

31、1.10（15）、鉻礬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrPSNiCuVGB/T307740CrV0.370.440.170.370.500.800.801.100.0350.0350.30.30.100.20GB/T307750CrVA0.470.540.170.370.500.800.801.100.0250.0250.30.30.100.20（16）、鉻錳合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrPSNiCuGB/T307715CrMn0.120.180.170.371.101.400.400.700.0350.0350.30.3GB/

32、T307720CrMn0.170.230.170.370.901.200.901.200.0250.0250.30.3GB/T307742CrMn0.370.450.170.370.901.200.901.200.0350.0350.30.3(17)、鉻錳硅合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrPSNiCuGB/T307720CrMnSi0.170.230.901.200.801.100.801.100.0350.0350.30.3GB/T307725CrMnSi0.220.280.901.200.801.100.801.100.0350.0350.30.3GB/T3

33、07730CrMnSi0.270.340.901.200.801.100.801.100.0350.0350.30.3GB/T307731CrMnSiA0.280.340.901.200.801.100.801.100.0250.0250.30.3GB/T307732CrMnSiA0.320.391.101.400.801.101.101.400.0250.0250.30.3執(zhí)行標(biāo)準(zhǔn)牌號(hào)CSiMnCr(18)、鉻錳鉬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrMoPSNiCuGB/T307720CrMoNo0.170.230.170.370.901.201.101.400

34、.200.300.0350.0350.30.3GB/T307740CrMoNo0.370.440.170.370.901.200.901.200.200.300.0350.0350.30.3（19）、鉻鎳合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiPSCuGB/T307720CrNi0.170.230.170.370.400.700.450.751.001.400.0350.0350.30.801.100.801.10GB/T307740CrNi0.370.440.170.370.500.800.450.751.001.400.0350.0350.30.801.100.

35、801.10GB/T307745CrNi0.420.490.170.370.500.800.450.751.001.400.0350.0350.3GB/T307750CrNi0.470.540.170.370.500.800.450.751.001.400.0350.0350.3GB/T307712CrNi20.100.170.170.370.300.600.600.901.501.900.0350.0350.3GB/T307712CrNi30.100.170.170.370.300.600.600.902.753.150.0350.0350.3GB/T307720CrNi30.170.240

36、.170.370.300.600.600.902.753.150.0350.0350.3GB/T307730CrNi30.270.330.170.370.300.600.600.902.753.150.0350.0350.3GB/T307737CrNi30.340.410.170.370.300.601.201.603.003.500.0350.0350.3GB/T307712CrNi40.100.160.170.370.300.601.251.653.253.650.0350.0350.3GB/T307720CrNi40.170.230.170.370.300.601.251.653.253

37、.650.0350.0350.3（20）、鉻錳鈦合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrTiPSCuNiGB/T307720CrMnTi0.170.230.170.370.801.101.001.300.040.100.0350.0350.30.3GB/T307730CrMnTi0.240.320.170.370.801.101.001.300.040.100.0350.0350.30.3(21)、鉻鎳鉬合金結(jié)構(gòu)鋼號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiMoPSCuGB/T307720CrNiMo0.170.230.170.370.600.950.40

38、0.700.350.750.200.300.0350.0350.3GB/T307721CrNiMoA0.370.440.170.370.500.800.600.901.251.650.150.250.0250.0250.3(22)、鉻鎳錳鉬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiMoPSCuGB/T307718CrNiMnMoA0.150.210.170.371.101.401.001.301.001.300.200.300.0250.0250.3(23)、鉻鎳鉬礬合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiMoVPSCuGB/T3077

39、18CrNiMoVA0.420.480.170.370.500.800.801.101.301.800.200.30 0.100.200.0250.0250.3(24)、鉻鎳鎢合金結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiWPSCuGB/T307718Cr2Ni4WA0.130.190.170.370.300.601.351.654.004.500.801.200.0250.0250.3GB/T307725Cr2Ni4WA0.210.280.170.370.300.601.351.654.004.500.801.200.0250.0250.35、保證淬透性結(jié)構(gòu)鋼（H鋼）

40、牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnCrNiMo、Ti、VBPSCuGB/T521645H0.420.500.170.370.500.850.250.300.0350.0350.25GB/T521615CrH 0.120.180.170.370.550.900.851.250.300.0350.0350.3GB/T521620CrH0.170.230.170.370.500.850.701.100.300.0350.0350.3GB/T521620CrLH 0.170.230.170.370.550.900.851.250.300.0350.0350.3GB/T521640Cr

41、H0.370.440.170.370.500.850.701.100.300.0350.0350.3GB/T521620CrH 0.420.490.170.370.500.850.701.100.300.0350.0350.3GB/T521616CrMnH0.140.190.371.001.300.801.100.300.0350.0350.3GB/T521620CrMnH0.170.220.371.101.401.001.300.300.0350.0350.3GB/T521615CrMnBh 0.130.180.170.371.001.300.801.100.300.00050.00300.

42、0350.0350.3GB/T521617CrMnBh0.150.200.170.371.001.301.001.350.300.00050.00300.0350.0350.3GB/T521640MnBH0.370.440.170.371.001.400.300.300.00050.00300.0350.0350.3GB/T521645MnBH0.420.490.170.371.001.400.300.300.00050.00300.0350.0350.3GB/T521620MnVBH 0.170.230.170.371.051.450.300.30V=0.070.120.00050.0030

43、0.0350.0350.3GB/T521620MnTiBH0.170.230.170.371.201.550.300.30Ti=0.040.100.00050.00300.0350.0350.3GB/T521615CrMoH 0.120.180.170.370.550.900.851.250.30Mo=0.150.250.0350.0350.3GB/T521620CrMoH0.170.230.170.371.101.480.851.250.30Mo=0.150.250.0350.0350.3GB/T521622CrMoH0.190.250.170.371.101.490.851.250.30M

44、o=0.350.450.0350.0350.3GB/T521644CrMoH0.370.440.170.371.101.500.851.250.30Mo=0.150.250.0350.0350.3GB/T521620CrMnMoH0.170.230.170.371.101.511.051.400.30Mo=0.200.300.0350.0350.3GB/T521620CrMnTiH0.170.230.170.371.101.521.001.350.30Ti=0.040.100.0350.0350.3GB/T521647CrNi3H0.170.230.170.371.101.530.600.95

45、2.703.250.0350.0350.3GB/T521647Cr2Ni4H0.100.170.170.371.101.541.201.753.203.750.0350.0350.3GB/T521620CrNiMoH0.170.230.170.371.101.550.350.650.350.75Mo=0.150.250.0350.0350.3GB/T521620CrNi2MoH0.170.230.170.371.101.560.350.651.552.00Mo=0.200.300.0350.0350.36、易切削結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分:執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSPbGB/T8731

46、Y120.080.160.150.350.701.000.080.150.100.20GB/T8731Y12Pb0.080.160.150.701.000.050.100.150.250.150.35GB/T8731Y150.100.180.150.801.200.050.100.230.33GB/T8731Y15pb0.100.190.150.801.200.050.100.230.330.150.35GB/T8731Y200.170.250.150.350.701.000.0600.080.15GB/T8731Y300.270.350.150.350.701.000.0600.080.15

47、GB/T8731Y350.320.400.150.350.701.000.0600.080.15GB/T8731Y40Mn0.370.450.150.351.201.550.0500.200.30GB/T8731Y45Ca0.420.500.200.400.600.900.900.040.08Ca=0.150.357、冷墩和冷壓用鋼牌號(hào)及化學(xué)成分：（1）、非熱處理型冷墩和冷擠壓用鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCuNiCrALtGB/T6478ML04ML0.060.1 0.200.400.0350.0350.200.200.20.02GB/T6478ML08AL0.

48、050.100.1 0.300.600.0350.0350.200.200.20.02GB/T6478ML10AL0.080.130.1 0.300.600.0350.0350.200.200.20.02GB/T6478ML15AL0.130.180.1 0.300.600.0350.0350.200.200.20.02GB/T6478ML15AL0.130.180.150.350.300.600.0350.0350.200.200.2GB/T6478ML20AL0.180.230.1 0.300.600.0350.0350.200.200.20.02GB/T6478ML200.180.230

49、.150.350.300.600.0350.0350.200.200.2（2）、表面硬化型冷墩和冷擠壓用鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCuNiCrALtGB/T6478ML18Mn0.150.200.1 0.600.900.0350.0350.200.200.20.02GB/T6478ML22Mn0.180.230.1 0.701.000.0350.0350.200.200.20.02GB/T6478ML20Cr0.170.230.3 0.600.900.0350.0350.200.200.901.200.02(3)、調(diào)質(zhì)型冷鐓和冷擠壓用鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌

50、號(hào)化學(xué)成分(%)CSiMnMo.Ti.VBCrALtPSNiCuGB/T6478ML250.220.290.200.300.600.200.0350.0350.020.02GB/T6478ML300.270.340.200.300.600.200.0350.0350.020.02GB/T6478ML350.320.390.200.300.600.200.0350.0350.020.02GB/T6478ML400.370.440.200.300.600.200.0350.0350.020.02GB/T6478ML450.420.500.200.300.600.200.0350.0350.020.

51、02GB/T6478ML15Mn0.140.200.200.400.200.400.200.0350.0350.020.02GB/T6478ML25Mn0.220.290.250.600.900.200.0350.0350.020.02GB/T6478ML30Mn0.270.340.250.600.900.200.0350.0350.020.02GB/T6478ML35Mn0.320.390.250.600.900.200.0350.0350.020.02GB/T6478ML37Cr0.340.410.300.600.900.901.200.0350.0350.020.02GB/T6478ML

52、40Cr0.380.450.300.600.900.901.200.0350.0350.020.02GB/T6478ML30CrMo0.260.340.300.600.900.150.250.801.100.0350.0350.020.02GB/T6478ML35CrMo0.320.400.300.600.900.150.250.801.100.0350.0350.020.02GB/T6478ML42CrMo0.380.450.300.600.900.150.250.901.200.0350.0350.020.02GB/T6478ML20B0.170.240.400.500.800.00050

53、.00350.200.020.0350.0350.020.02GB/T6478ML28B0.250.320.400.600.900.00050.00350.200.020.0350.0350.020.02GB/T6478ML35B0.320.390.400.500.800.00050.00350.200.020.0350.0350.020.02GB/T6478ML15MnB0.140.200.401.201.600.00050.00350.200.020.0350.0350.020.02GB/T6478ML20MnB0.170.240.400.801.200.00050.00350.200.0

54、20.0350.0350.020.02GB/T6478ML35MnB0.320.390.401.101.400.00050.00350.200.020.0350.0350.020.02GB/T6478ML37CrB0.340.410.400.500.800.00050.00350.200.400.020.0350.0350.020.02GB/T6478ML20MnTiB0.190.240.301.301.600.040.100.00050.00350.200.020.0350.0350.020.02GB/T6478ML15VMnB0.130.180.301.201.600.070.120.00

55、050.00350.200.020.0350.0350.020.02GB/T6478ML20VMnB0.190.240.301.201.600.070.120.00050.00350.200.020.0350.0350.020.028、高耐侯結(jié)構(gòu)鋼牌號(hào)及化學(xué)成分表：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiCuTiREGB/T4171Q295GNH 0.250.500.200.400.200.600.070.150.0350.250.550.10.15GB/T4171Q295GNHL0.12 0.100.400.200.500.070.120.0350.300.650.250.500.2

56、50.451GB/T4171Q345GNH 0.12 0.200.600.500.900.070.120.0350.250.500.030.15GB/T4171Q345GNHL 0.12 0.250.750.200.500.070.120.0350.301.250.650.250.55GB/T4171Q390GH0.12 0.150.651.400.0350.0350.450.750.050.300.250.500.10.129、焊接結(jié)構(gòu)用耐鋼牌號(hào)及化學(xué)成分類：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrVCuNiGB/T4172Q235NH0.150.150.400.200.600.0350

57、.0350.400.800.020.50GB/T4172Q295NH0.150.150.501.001.600.0350.0350.400.800.020.50GB/T4172Q355NH0.160.500.901.000.0350.0350.400.80 0.020.100.020.50GB/T4172Q460NH0.100.180.500.901.000.0350.0350.400.800.020.5010、彈簧鋼牌號(hào)及化學(xué)成分表：（1）、優(yōu)質(zhì)碳素彈簧鋼號(hào)及化學(xué)成分表：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnPSCrNiCuGB/T122265鋼0.620.700.170.370.500.80

58、0.0350.0350.250.250.25GB/T122270鋼0.620.750.170.370.500.800.0350.0350.250.250.25GB/T122285鋼0.820.900.170.370.500.800.0350.0350.250.250.25GB/T122265Mn0.620.700.170.370.901.20.0350.0350.250.25(2)、合金彈簧鋼牌號(hào)及化學(xué)成分：執(zhí)行標(biāo)準(zhǔn)牌號(hào)化學(xué)成分(%)CSiMnVW、Mo、BCrPSNiCuGB/T122255Si2Mn 0.520.601.502.000.600.900.350.0350.0350.350.2

59、5GB/T122255si2MnB 0.520.601.502.000.600.900.00050.0040.350.0350.0350.350.25GB/T122255siMnVB0.520.600.701.001.001.300.080.100.00050.00350.350.0350.0350.350.25GB/T122260si2Mn0.560.641.502.000.600.900.350.0350.0350.350.25GB/T122260si2MnA0.560.641.602.000.600.900.300.030.0350.350.25GB/T122260si2CrA0.560

60、.641.401.800.400.600.701.000.030.030.350.25GB/T122260si2CrVA0.560.641.401.800.400.600.100.200.901.200.030.030.350.25GB/T122255CrMnA0.500.600.170.370.650.950.650.950.030.030.350.25GB/T122260CrMnA0.560.640.170.370.701.000.701.000.030.030.350.25GB/T122260CrMnMoA0.560.640.170.370.701.000.250.350.700.900