| 序号 | 砂铁比 | 陶土烧损 | 煤粉烧损 |
| 1 | 10.00% | 0.25% | 0.25% |
| 2 | 6.00% | 0.62% | 0.39% |
| 3 | 5.00% | 1.00% | 0.42% |
| 4 | 4.50% | 1.17% | 0.49% |
| 5 | 4.00% | 1.18% | 0.52% |
| 6 | 3.50% | 1.23% | 0.56% |
| 7 | 2.90% | 1.45% | 0.64% |