Ladle Refractory Castable is made of bauxites, corundum and magnesia as raw materials, prepared by micro-powder technology and additive.
Features:
- Good thermal shock resistance.
- Excellent corrosion resistance.
- Good volume stability.
Application:
- Steel furnaces.
- Iron making furnaces.
- Glass kiln.
- Ceramic tunnel kiln.
- Cement kiln.
| 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 |
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