Introduction of High Purity Corundum Refractory Brick For Industrial Furnace And Kiln
Corundum Brick is a kind of refractory product with corundum as the main crystal phase and contains over 90% aluminium oxide content. Corundum fire bricks have very high cold crushing strength that can reach up to 340MPa and high apparent initial softening temperature that is over 1700℃. Corundum refractory brick can be used in blast furnace, hot blast stove, glass furnace and etc.
Properties of High Purity Corundum Brick
* High temperature resistance;
* High compression strength;
* High dense structure;
* Good thermal shock resistance;
* Strong resistance to acid and alkaline slag erosion;
* Good chemical stability;
* Good resistance to metal and glass liquid;
Parameter of High Purity Corundum Brick
| Item | Index |
| Al2O3 % | ≥99 |
| SiO2 % | ≤0.15 |
| Fe2O3 % | ≤0.12 |
| Bulk Density g/cm3 | ≥3.2 |
| Apparent Porosity % | ≤16 |
| Cold Crushing Strength MPa | ≥100 |
| 0.2Mpa Refractoriness Under Load ℃ | ≥1700 |
| Permanent Linear Change Rate % 1600℃×3h | ±0.2 |
| Thermal shock resistance cycle 1100℃water cooling | ≥5 |
