White fused aluminum oxide powder is a high-quality raw materials, fused refining crystal, it is slightly higher than the hardness of corundum, lower toughness, high purity, self-sharpening, grinding ability, heat a small, high efficiency , acid corrosion, high temperature, good thermal stability. Made with the abrasive, for grinding of high carbon steel, high speed steel. Can be used as grinding, polishing materials, precision casting, coating materials, chemical industry, special ceramics, advanced refractory. 
 Corundum physical and chemical indicators: use of standard 
 Main chemical components of Al2O3, Na2O% SiO2 Magnetic% 
 CaO 
 Abrasives 
 F12 # -80 # ≥ 99.0 ≤ 0.5 - ≤ 0.4 ≤ 0.003 
 90 # -150 # ≥ 98.5 ≤ 0.6 ≤ 0.003 
 180 # -240 # ≥ 98.2 ≤ 0.7 - ≤ 0.4 ≤ 0.002 
 W1 # -63 # ≥ 97.5 ≤ 0.8 ≤ 1.0 ≤ 0.5 ≤ 0.001 
 Refractories. Sand 0-1mm1-3mm3-5mm5-8mm8-12mm ≥ 99.0 ≤ 0.5-≤ 0.4 ≤ 0.003 
 Powder 180 # -0200 # -0320 # -0 ≥ 98.5 ≤ 0.3 ≤ 0.5 ≤ 0.001 
 Note: F for the consolidation of abrasive and blasting powder with a size W for the 320 # that W40 
 Corundum physical performance indicators: Item Index 
 Pure white color 
 Trigonal crystal form 
 Hardness (Mohs) ≥ 9.0 
 Melting point (℃) 2250 
 Maximum temperature (℃) 1900 
 True density (g/cm3) ≥ 3. 90 
 Linear expansion coefficient (0-1600 ℃) 7-9