Refractory white fused alumina powder 325 200 100 mesh White fused alumina / White Corundum is a high-grade refractory material, which made from high-quality alumina powder by melting above 2000 ℃ in the electric arc furnace and cooling, classified into different grain sizes. The white fused alumina is the main raw material for the production of unshaped and shaped refractory materials.
1-3mm Refractory white fused alumina
Properties/type | 0-1mm, 1-3mm, 3-5mm | 0-100, 0-200, 0-320mesh | |||
Guarantee Value | Typical Value | Guarantee Value | Typical Value | ||
Chemical composition | AI2O3 | 99.0 min | 99.5 | 98.5min | 99.0 |
SiO2 | 0.4 max | 0.06 | 0.3max | 0.08 | |
Fe2O3 | 0.2 max | 0.04 | 0.2max | 0.10 | |
Na2O | 0.4 max | 0.30 | 0.4max | 0.35 | |
Test items | indicators |
Mohs hardness | 9.0 |
Bulk density | 1.75-1.95g/cm3 |
Real density | 3.95g/cm3 |
Melting point | 2250℃ |
The highest operating temperature | 1900℃ |
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