White fused alumina as raw material is high quality aluminum oxide, fused refined and crystallized, it is the hardness slightly higher than corundum, lower toughness, high purity, self-sharpening, grinding ability, hair heat, high efficiency , acid corrosion, high temperature, good thermal stability. Its made of abrasive for grinding high carbon steel, high-speed steel. Can also be used as grinding, polishing materials, precision casting, spraying materials, chemical catalyst carrier, special ceramics, advanced refractories and other. 
 White fused alumina physical and chemical indicators: use specifications 
 The main chemical composition of Al2O3, Na2O% SiO2 magnetic material of CaO 
 Abrasives 
 The 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 # -0 200 -0 320 # -0 ≥ 98.5 ≤ 0.3 ≤ 0.5 ≤ 0.001 
 Note: F for the Bonded Abrasives and sandblasting specifications W powder, 320 #, W40 
 White fused alumina physical performance index: Item Index 
 Colour pure white 
 Crystal tripartite crystal 
 Hardness (Mohs) ≥ 9.0 
 Melting point (° C) 2250 
 Maximum operating temperature (° C) 1900 
 True density (g/cm3) ≥ 90 
 Coefficient of linear expansion (0-1600 ° C) 7-9