Aluminium oxide abrasives
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white aluminium oxide grit
white aluminium oxide is kind of white fused alumina electrically fused in arc furnace with high grade processed 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.
Applications:
it is suitable for making grinding wheel to grind high-speed, high carbon steel, as loose grains, it also widely used for polishing, precision casting, spring and coating.
Typical Chemical Analysis:
Al2O3 99.47%
Na2O 0.27%
SiO2 0.06%
Fe2O3 0.05%
Physical Properties:
Color White
Shape Angular edge sharp
Crystal Form Alpha alumina
Specific Gravity 3.95
Hardness 2150 Knoop scale
Magnetic Material 0.0025%
Grain Sizes Available (F):
12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220.0-1,1-3,3-5,5-8mm -200mesh,-325mesh ,-8+16mesh ,-28+48mesh ATSM