Chrome corundum refractory bricks are refractory materials made from high - purity α - Al₂O₃ and Cr₂O₃ as the main raw materials. They are formed by high - pressure molding or slurry casting and then sintered at high temperatures.
Chrome corundum refractory bricks are refractory materials made from high-purity α-Al₂O₃ and Cr₂O₃ as the main raw materials. They are formed by high - pressure molding or slurry casting and then sintered at high temperatures. They combine the high-temperature stability of corundum and the erosion - resistance of chromium oxides, and are widely used in extreme high - temperature environments.
Features and Properties
| Technical Properties | XZK-CC10 | XZK-CC12 | XZK-CC15 | XZK-CC30 |
| Al₂O₃ (%) | ≥ 83.0 | ≥ 80.0 | ≥ 78.0 | ≥ 62.0 |
| Cr₂O₃ (%) | ≥ 10.0 | ≥ 12.0 | ≥ 14.5 | ≥ 30.0 |
| Fe₂O₃ (%) | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 | ≤ 0.3 |
| Bulk Density (g/cm³) | ≥ 3.25 | ≥ 3.25 | ≥ 3.25 | ≥ 3.40 |
| Apparent Porosity (%) | ≤ 17 | ≤ 17 | ≤ 17 | ≤ 17 |
| Cold Crushing Strength (MPa) | ≥ 100 | ≥ 100 | ≥ 100 | ≥ 100 |
| Refractoriness Under Load (0.2MPa, ℃) | ≥ 1700 | ≥ 1700 | ≥ 1700 | ≥ 1700 |
| Thermal Shock Resistance (950℃ air-cooled, cycles) | ≥ 12 | ≥ 12 | ≥ 12 | - |
Al₂O₃:≥62%;
Cr₂O₃:≥10%;
Cold Crushing Strength:≥100MPa;
Al₂O₃:≥80%;
Bulk Density:≥2.75g/cm³;
Cold Crushing Strength:≥85MPa;
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