
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
| ≤0.03 | 1.00~2.50 | 0.30~0.65 | ≤0.020 | ≤0.030 | 18.00~20.00 | 11.00~14.00 | 2.00~3.00 | ≤0.75 |
| 0.02 | 1.85 | 0.36 | 0.014 | 0.017 | 18.82 | 12.20 | 2.32 | 0.20 |
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
| ≤0.03 | 1.00~2.50 | 0.30~0.65 | ≤0.020 | ≤0.030 | 18.00~20.00 | 11.00~14.00 | 2.00~3.00 | ≤0.75 |
| 0.02 | 1.85 | 0.36 | 0.014 | 0.017 | 18.82 | 12.20 | 2.32 | 0.20 |