| Item | High Purity Corundum Brick | Sintered Corundum Brick |
| Al2O3(%) | ≥99 | ≥90 |
| SiO2(%) | ≤0.2 | ≤8 |
| Fe2O3(%) | ≤0.2 | ≤0.2 |
| Bulk Density(g/cm3) | ≥3.2 | ≥3 |
| Apparent Porosity(%) | ≤19 | ≤20 |
| Cold Crushing Strength(Mpa) | ≥100 | ≥100 |
| Refractoriness Under Load ℃ (0.2Mpa, 0.6%) |
≥1700 | ≥1700 |
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