炉号 | C | Si | Mn | Cr | Mo | Nb | S | P |
1 | 0.49 | 0.7 | 0.9 | 0.90 | 0.013 | 0.025 | 0.002 | 0.015 |
2 | 0.52 | 0.75 | 1.0 | 0.85 | 0.011 | 0.026 | 0.001 | 0.014 |
3 | 0.53 | 0.8 | 1.2 | 1.00 | 0.012 | 0.028 | 0.001 | 0.013 |