white fused alumina /fused corundum for refractory abrasive

White fused aluminum/white corundum/WA, a kind of high-grade refractories, 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 α-Al2O3. Its dense texture, high hardness, granular form sharp corners. Product White Fused Alumina Main crystal body Al2O3 Color White Al2O3 99.55%Min SiO2 0.2%Max NaO2 0.4%Max Fe2O3 0.2%Max True density 3.95g/cm3 Bulk density 1.95g/cm3 BULK DENSITY 1.75-1.95g/cm3 Mohs hardness 9.0 g/cm3 Micro hardness 21600-22600kg/mm3