Description
Corundum brick has high refractoriness under load, good chemical stability, strong resistance to acidic or alkaline slag, metal and glass liquid, etc., and has a dense structure. It has a good bulk density but its thermal shock capacity is comparatively lower.
The main raw material of pure corundum brick is fused white corundum sand. The corundum bricks we produce are made from: pure fused white corundum, synthetic mullite and chromium oxide.
Application of Corundum Bricks:
Blast Furnace And Hot Air Stove For Blast Furnace
Refining Furnace for Steelmaking Furnace
Sliding Water Heater
Glass Melting Furnace
Petrochemical Industrial Furnace.
High-Temperature Tunnel Kiln
Technique Data
| Item | Index | ||||
| GYZ-99A | GYZ-99B | GYZ-98 | GYZ-95 | ||
| Al2O3 % | ≥99 | ≥99 | ≥98 | ≥95 | |
| SiO2 % | ≤0.15 | ≤0.2 | ≤0.5 | / | |
| Fe2O3 % | ≤0.1 | ≤0.15 | ≤0.2 | ≤0.3 | |
| Apparent Porosity % | ≤19 | ≤19 | ≤19 | ≤20 | |
| Bulk Density g/Cm3 | ≥3.20 | ≥3.15 | ≥3.15 | ≥3.1 | |
| Cold Crushing Strength Mpa | ≥80 | ≥80 | ≥80 | ≥100 | |
| 0.2Mpa Refractoriness Under Load ℃ | ≥1700 | ||||
| Permanent Linear Change Rate % 1500℃×2h | ±0.2 | ±0.3 | |||
