Corundum brick Heat resistant, wear resistant, thermal shock resistant. Used for sidewalls of glass melting furnaces, blast furnaces in metallurgy, high temperature zones of ceramic kilns, and high temperature equipment in petrochemical and power industries.
Corundum refractory bricks are high - performance refractory materials with corundum as the main crystal phase and an Al₂O₃ content of ≥ 90%. They are made through high - temperature sintering (1750-1800℃), combining ultra - high refractoriness and mechanical strength, and are suitable for extreme industrial environments.
Features and Properties
| Index Items | Corundum Refractory Bricks (A - 95) | Corundum Refractory Bricks (A - 99) |
| Al₂O₃ /% | ≥ 95 | ≥ 99 |
| Fe₂O₃ /% | ≤ 0.3 | ≤ 0.3 |
| Bulk Density /g/cm³ | ≥ 3.15 | ≥ 3.2 |
| Apparent Porosity /% | ≤ 18 | ≤ 17 |
| Compressive Strength at Normal Temperature /MPa | ≥ 90 | ≥ 80 |
Al₂O₃:≥62%;
Cr₂O₃:≥10%;
Cold Crushing Strength:≥100MPa;
Al₂O₃:≥80%;
Bulk Density:≥2.75g/cm³;
Cold Crushing Strength:≥85MPa;
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