炉号 | C | S | P | Mn | Si | Cr | V | Nb |
1 | 0.49 | 0.007 | 0.011 | 0.93 | 0.33 | 1.15 | 0.07 | 0.06 |
2 | 0.52 | 0.005 | 0.009 | 0.94 | 0.31 | 1.08 | 0.08 | 0.07 |
3 | 0.53 | 0.007 | 0.010 | 1.00 | 0.32 | 1.10 | 0.06 | 0.06 |