Brown Fused Alumina

We are offering brown fused alumina.
brown fused alumina is made by high quality bauxite as main material, fusing and purifying in a pouring electric arc furnace at a temperature of over 2200 degree celsius.
chemical composition
grit size al2o3 tio2 sio2 fe2o3 cao
f4-f80 95.0-96.0 1.50-3.80 1.21 0.3 0.45
f90-f150 94.5-95.5
f180-f220 93.5-95.5
f220 finer ≥92.0
physical index
crystal system hexagonal
true density 3.90g/cm3 min
mohs hardness 9
micro hardness hv1800-2200
size available
abrasives f12-f1200, p12-p2500
refractory 0-1mm,1-3mm,3-5mm,5-8mm,200mesh,325mesh
other special specification could be supplied as required
application
1.coated and boned abrasive tools
2.lapping and polishing process
3.sandblasting
4.producing mold of precision casting
5.refractory materials including low cement casting, plastics, bricks, etc.