描述
Description of Corundum Brick:
High-purity corundum bricks are high-quality refractory materials made of 99%+ high-purity alumina (Al₂O₃), formed under high pressure and sintered at ultra-high temperatures. They feature excellent high-temperature resistance (≥1800°C), corrosion resistance, high strength and low thermal conductivity, making them an ideal choice for high-temperature industrial furnaces in the steel, glass, chemical and new energy industries.
Applications：
Steel and Metallurgy
Ladle, molten iron tank, RH degasser lining
Blast furnace trough and hot blast stove components
Glass industry
Glass furnace wall, throat block, heat accumulator
High-temperature glass fiber production equipment
Chemistry and Environment
Inner linings of waste incinerators and gasifiers
High-temperature reactor in petrochemical plant
Technique Data：
Technique Data of Corundum Brick:
| Item | GYZ-99A | GYZ-99B | GYZ-98 | GYZ-95 |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥99 | ≥99 | ≥98 | ≥95 |
| SiO₂ (%) | ≤0.15 | ≤0.20 | ≤0.50 | / |
| Fe₂O₃ (%) | ≤0.10 | ≤0.15 | ≤0.20 | ≤0.30 |
| Apparent Porosity (%) | ≤19 | ≤19 | ≤19 | ≤20 |
| Bulk Density (g/cm³) | ≥3.20 | ≥3.15 | ≥3.15 | ≥3.10 |
| Cold Crushing Strength (MPa) | ≥80 | ≥80 | ≥80 | ≥100 |
| 0.2 MPa RUL (°C) | ≥1700 | ≥1700 | ≥1700 | ≥1700 |
| Permanent Linear Change (1500°C × 2h) | ±0.2 | ±0.3 | — | — |
