Refractories for pig iron ladle
| Class performance | Working layer castable | Permanent layer castable | Hot metal bag mouth material | Unburned brick | |
|---|---|---|---|---|---|
| Chemical composition(%) | Al2O3(%) | 60 | 55 | 45 | 50 |
| SiC+C | 12 | ||||
| Bulk density(g/cm³) | 110℃x24h | 2.5 | 2.10 | 2.0 | 2.2 |
| Linear change rate(%) | 1450℃x3h | ±1.0 | ±1.0 | ±1.0 | ±1.0 |
| Flexural strength(Mpa) | 110℃x24h | 3 | 3 | 5 | |
| 1450℃x3h | 6 | 6 | 10 | ||
| Refractoriness(℃) | 1790 | 1690 | 1790 | 1790 | |
