White fused alumina,

White fused alumina is electrically fused in arc furnace with high grade Bayer's process alumina as raw material. It has higher hardness and slight lower toughness
comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and
alkali resistance, good thermal stability. Abrasives tools made of it are suitable for grinding high-speed, high carbon steel, etc. It also can be used as materials for
grinding and polishing, precision casting, spraying and coating, medium body for chemical industry, special ceramics and high-grade refractory materials, etc.

Purpose
Specification Chemical composition(%)
For abrasive
Grit Size Al2O3
NaO CaO
F12-F80 99min 0.5max 0.4max
F90-F150 98.5min 0.6max 0.4max
F180-F240 98.2min 0.7max 0.4max
W1-W63 97.5min 0.8max 0.5max

For Refractory

Grit Size Al2O3
NaO CaO
0-1mm 99min 0.5max 0.4max
1-3mm 99min 0.5max 0.4max
3-5mm 99min 0.5max 0.4max
5-8mm 99min 0.5max 0.4max
8-12mm 99min 0.5max 0.4max
0-180mesh 98.5min 0.5max
0.4max
0-220mesh 98.5min 0.5max 0.4max
0-320mesh 98.5min 0.5max 0.4max

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