Project Description

Brown fused alumina oxide

The main material of brown fused alumina is bauxite, which is electrically fused in high temperature. It is  brown and features high hardness and toughness. The abrasive tools made of it are suitable for the grinding of carbon steel, malleable cast iron, hard bronze, etc. In addition, they are also used as refractory materials, chemical additive, precision founding and anti-sliding materials.

Chemical composition:

TypeGrit sizeAL2O3 %TiO2 %CaO %
BFA-FEPA F/PF4-F80
(P12-P80)
95.00-97.501.5-3.8≤0.45
BFA-FEPA F/PF90-F150
(P100-P150)
94.00-95.501.5-3.8≤0.45
BFA-FEPA F/PF180-F220
(P180-P220)
93.00-95.501.5-3.8≤0.45
BFA-FEPA F/PF220(P220)
Finer
 ≥92.001.5-3.8≤0.45

Physical property:

Basic MineralsCrystal Size(μm)True Density(ɡ/cm³)Bulk Density(ɡ/cm³)Hardness (kg/mm³)
Alpha–Al2O3400-800≥3.901.40-1.951800-2200

Bulk Density

Grit sizeBulk density(ɡ/cm³)Grit sizeBulk density(ɡ/cm³)
F241.8-1.97F801.61-1.79
F301.77-1.97F901.59-1.77
F361.75-1.95F1001.57-1.75
F401.73-1.93F1201.54-1.72
F461.70-1.90F1501.50-1.70
F541.68-1.85F1801.48-1.68
F601.66-1.84F2201.45-1.65
F701.63-1.82

Grain Shape

ShapeProcessing machinery
BFA-NAngularRolling Milling & Ball Milling
BFA-HSphericalBall milling & Shape Treatment Machine

Standard: FEAP- F (Bonded abrasives),  FEPA- P (Coated abrasives)
Gritavailable:  Grit FEPA F12 – F220#.  F240-F2000# (Micro powder)
Grit FEPA P12-220#.  P240-P2500# (Micro powder)
Other sizes are also available on request.

  • Wet and dry blasting
  • Grinding, lapping and polishing media
  • Resin bonded grinding wheels and segments
  • Resin bonded abrasive and coated abrasive products
  • Wear-resistant and fire-proof products
  • Friction products and abrasion resistance ground
  • Producing mold of precision casting