Zirconia corundum brick, a refractory material, consists mainly of zirconia and corundum. It features high – temperature resistance, excellent wear resistance, and strong corrosion resistance, widely used in glass, steel, and other industries.
| Item | zirconium -corundum brick |
|---|---|
| ZrO2 % | ≥30 |
| Al2O3 % | ≥45 |
| SiO2 % | ≤25 |
| Fe2O3 % | ≤0.5 |
| Apparent porosity % | ≤20 |
| Bulk density g/cm3 | ≥3.2 |
| Cold compressive strength MPa | ≥100 |
| Refractoriness under load°C | ≥1650 |
1.High Refractoriness: Withstands over 1700℃, stable at high – temperature.
2.Strong Abrasion Resistance: Hard texture, resists material erosion.
3.Good Corrosion Resistance: Resists various chemicals.
4.High Mechanical Strength: Bears large mechanical pressure.
Zirconia corundum bricks are applied in glass melting furnaces, steelmaking furnaces, non – ferrous metal smelting furnaces and ceramic kilns due to their excellent properties.