Corundum Brick of refractory product with corundum
Item | Unit | High Purity Corundum Brick | Common Corundum Brick | Common Corundum Brick | Mullite Corundum Brick | Chrome Corundum Brick |
DL-98 | DL-95 | DL-90 | MDL-80 | GDL-85 | ||
Al2O3 ≥ | % | 98.5 | 95 | 90 | 80 | 85 |
SiO2 ≤ | % | 0.3 | 3.0 | 9.0 | 18 | 0.2 |
Fe2O3 ≤ | % | 0.2 | 0.2 | 0.5 | 0.5 | 0.2 |
R20 ≤ | % | 0.3 | 0.6 | 0.6 | 0.4 | 0.5 |
Bulk Density ≥ | g/cm3 | 3.0 | 2.9 | 2.9 | 2.7 | 3.1 |
Cold Crushing Strength ≥ | MPa | 75 | 100 | 100 | 60 | 80 |
Refractoriness ≥ | ºC | 1790 | 1790 | 1790 | 1790 | 1790 |
Deformation Temperature 0.2MPa ≥ | ºC | 1700 | 1650 | 1650 | 1700 | 1700 |
Linear Change On Reheating 1600*3h ≤ | % | 0.2 | 0.2 | 0.2 | 0.3 | 0.2 |
Thermal Stability (1100ºC) ≥ | Times | 6 | 10 | 10 | 20 | 15 |