合金结构钢的牌号及化学成分GB-T3077-1999

1、合金结构钢的牌号及化学成分(摘自GB/T30771999)牌   号化   学   成   分   (质量分数)，%C(碳)Si(硅)Mn(锰)Mo(钼)V(钒)B(硼)20Mn20.170.240.170.371.401.80   30Mn20.270.340.170.371.401.80   35Mn20.320.390.170.371.401.80   40Mn20.370.440.170.371.4

2、01.80   45Mn20.420.490.170.371.401.80   50Mn20.470.550.170.371.401.80   20MnV0.170.240.170.371.301.60 0.070.12 27SiMn0.240.321.101.401.101.40   35SiMn0.320.401.101.401.101.40   42SiMn0.390.451.101.401.101.40 &#

3、160; 20Mn2MoV0.170.230.921.202.202.600.300.400.050.12 25Mn2MoV0.220.280.921.202.202.600.300.400.050.12 37Mn2MoV0.330.390.600.901.601.900.400.500.050.12 40B0.370.440.170.370.600.90  0.00050.003545B0.420.490.170.370.600.90  0.00050.003550B0.470.550.170.370.600.9

4、0  0.00050.003540MnB0.370.440.170.371.101.40  0.00050.003545MnB0.420.490.170.371.101.40  0.00050.0035 (表一)(表二)牌号化   学   成   分(质量分数)，%C(碳)Si(硅)Mn(锰)Mo(钼)Cr(铬)V(钒)Ti(钛)B(硼)其他20MnMo0.160.220.170.370.901.200.200.30  0.400.100.00050.00

5、35 15MnVB0.120.180.170.371.201.60  0.070.120.400.100.00050.0035 20MnVB0.170.230.170.371.201.40  0.070.12 0.00050.0035 40MnVB0.370.440.170.371.101.40  0.050.10 0.00050.0035 20MnTiBRE0.170.240.170.341.301.60    0.00050.003

6、5 25MnTiBRE0.220.280.200.451.301.60    0.00050.0035RE：0.0515Cr0.120.180.170.370.400.70 0.701.00    20Cr0.170.240.170.370.500.80 0.701.00    30Cr0.270.340.170.370.500.80 0.801.10    35Cr0.320.390.170.3

7、70.500.80 0.801.10    40Cr0.370.440.170.370.500.80 0.801.10    45Cr0.420.490.170.370.500.80 0.801.10    50Cr0.470.540.170.370.500.80 0.801.10    38CrSi0.350.431.001.300.300.60 1.301.60  

8、;  12CrMo0.080.150.170.370.400.700.400.550.400.70    15CrMo0.120.180.170.370.400.700.400.550.801.10    20CrMo0.170.240.170.370.400.700.150.250.801.10    (表三)牌   号化   学   成   分   (质

9、量分数)，%C(碳)Si(硅)Mn(锰)Mo(钼)Cr(铬)V(钒)其   他30CrMo0.260.340.170.370.400.700.150.250.801.10  35CrMo0.320.400.170.370.400.700.150.250.800.70  42CrMo0.380.450.170.370.500.800.150.250.901.20  12CrMoV0.080.150.170.370.400.700.250.350.300.600.150.30 35CrMoV0.300.380

10、.170.370.400.700.200.301.001.300.100.20 12CrMoV0.080.150.170.370.400.700.250.350.901.200.150.30 25CrMoVA0.220.290.170.370.400.700.250.351.501.800.150.30 25CrMo1VA0.220.290.170.370.500.800.901.102.102.500.300.50 38CrMoAl0.350.420.200.450.300.600.150.251.351.65 Al： 0.701.1040C

11、rV0.370.440.170.370.500.80 0.801.100.100.20 50CrVA0.470.540.170.370.500.80 0.801.100.100.20 15CrMn0.120.180.170.371.101.40 0.400.70  (表四)牌   号化   学   成   分   (质量分数)，% C(碳)Si(硅)Mn(锰)Mo(钼)Cr(铬)Ni(镍)V(钒)Ti(钛)其

12、0;  他20CrMn0.170.230.170.370.901.20      40CrMn0.370.450.170.370.901.20 0.901.20    20CrMnSi0.170.230.901.200.801.10 0.801.10    25CrMnSi0.220.290.901.200.801.10 0.801.10    30CrMnSi0.270.34

13、0.901.200.801.10      35CrMnSiA0.320.391.101.400.801.10 1.101.40    20CrMnMo0.170.230.170.370.901.200.200.301.101.40    40CrMnMo0.370.450.170.370.901.200.200.300.901.20    20CrMnTi0.170.230.170.370.801.10&

14、#160;1.001.30  0.400.10 30CrMnTi0.240.320.170.370.801.10 1.001.30  0.400.10 20CrNi0.170.230.170.370.400.70 0.450.751.001.40   40CrNi0.370.440.170.370.500.80 0.450.751.001.40   45CrNi0.420.490.170.370.500.80 0.450.751.001

15、.40   50CrNi0.470.540.170.370.500.80 0.450.751.001.40   12CrNi20.100.170.170.370.300.60 0.600.901.502.00   12CrNi30.100.170.170.370.300.60 0.600.902.753.25   20CrNi30.170.240.170.370.300.60 0.600.902.753.25  &#

16、160;30CrNi30.270.340.170.370.300.60 0.600.902.753.25   37CrNi30.340.410.170.370.300.60 1.201.603.003.50   12Cr2Ni40.100.170.170.370.300.60 1.251.753.253.75   20Cr2Ni40.170.230.170.370.300.60 1.251.753.253.75   20CrNiMo0.170.230.170.370.600.950.200.300.400.700.350.75   40CrNiMoA0.370.440.170.370.500.800.150.250.600.901.251.75   45CrNiMoVA0.420.490.170.370.