Product Details

Refractory white fused alumina fines used in ceramic ball raw material

Introduction white corundum:

White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.

White corundum characteristics:

High purity, good self sharpening, acid and alkali corrosion resistance, high temperature resistance, thermal stability it is slightly higher than the corundum hardness, toughness is a bit low, high purity, good self sharpening, strong grinding ability, low calorific value, high efficiency, acid and alkali corrosion resistance, high temperature stability.

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Physical and chemical indicators:

The chemical index		Physical index
AL₂0₃	99.2％-99.7%	Mohs hardness	9
Fe₂O₃	0.03％-0.1%	Melting Point	2250
Na₂0	≤0.03％	Bulk density	1.75-1.95g/cm3
SiO₂	0.23％-0.32%	Real density	3.95