碳C | 硅Si | 锰Mn | 铬Cr | 钼Mo | 镍Ni | 硫S | 磷P |
0.17- 0.23 |
0.15- 0.40 |
1.30- 1.60 |
1.70- 2.00 |
0.20- 0.30 |
≤0.30 | ≤ 0.030 |
≤ 0.030 |
碳C | 硅Si | 锰Mn | 铬Cr | 钼Mo | 镍Ni | 硫S | 磷P |
0.17- 0.23 |
0.15- 0.40 |
1.30- 1.60 |
1.70- 2.00 |
0.20- 0.30 |
≤0.30 | ≤ 0.030 |
≤ 0.030 |