Product nature
White corundum is made of alumina powder, smelted at high temperature, then cooled and crushed and graded to be white. The white corundum produced by our company has the characteristics of stable product quality, uniform particle size composition, low magnetic content, high bulk density, high hardness, good toughness and high cleanliness.
AI2O3 | 99.70~99.2% |
Fe2O3 | 0.04~0.10% |
Na2O | 0.25~0.35% |
Pile density | 1.75 1.95 g/cm3 |
refractoriness | 2100°C |
Specific gravity | 3.96 g/cm3 |
Mohs hardness | 9.0 |