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What is the best ladle refractory castable with steel furnace
The ladle refractory castable is made of high-quality high alumina, corundum and high-quality magnesia as the main materials, and high-purity fused corundum as the main material. The matrix is mixed with high-purity spinel. It is an amorphous refractory made of composite micro powder and some additives.
Features of ladle refractory castable
- Good explosion protection
- High temperature resistance
- High degree of volume stability
- Protection against erosion
- Resistance to slag
Parameters of ladle refractory castable
| Ladle Castable | Spinel | Al and Mg | Mg mass | |
| Al2O3, % ≥ | - | 88 | 72 | 32 |
| MgO, % ≥ | - | 7 | 11 | 60 |
| SiO2, % ≥ | - | - | 9.5 | - |
| Bulk Density, g/cm3 ≥ | 110℃×24h | 3.1 | 2.9 | 2.9 |
| 1550℃×3h | 2.95 | 2.8 | 2.8 | |
| Linear change, % | 110℃×24h | 0-0.2 | 0-0.2 | 0-0.2 |
| 1550℃×3h | 0-0.8 | 0.5-1.5 | 0.5-1.2 | |
| Modulus of Rupture, MPa ≥ | 110℃×24h | 7 | 9 | 6 |
| 1550℃×3h | 8 | 9 | 8 | |
| Cold Crushing Strength, MPa ≥ | 110℃×24h | 30 | 60 | 45 |
| 1550℃×3h | 70 | 60 | 40 | |
| Amount of water, % | - | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 |
Application of ladle refractory castable
Ladle refractory castable are applied to steel furnaces, cast iron furnaces, glass furnaces, cement furnaces, ceramic tunnel furnaces, etc.
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