| Brown fused alumina is fused and crystallized under high temperature of about 2240℃from mixture of bauxite and other materials. Characterized by its high hardness, good toughness and shape in particles. Brown Fused Alumina is suitable for abrasive &sandblasting abrasive, refractory materials, abrasion resistance ground and also fro production mold of precision casting. The application scope of Brown Fused Alumina: 1: For abrasive 
2: For refractory materials
3: For sandblasting abrasive
4: For abrasion resistance ground
5: For producing mold of precision casting Physical and Chemical Analysis : | Purpose | Specification | Chemical composition(%) | Magnetic material content(%) | | Al2O3 | Fe2O3 | SiO2 | TiO2 | | Abrasive Grade | F | 4#—80# | 95.0 Min | 0.3 Max | 1.5 Max | 3.0 Max | 0.05 Max | | 90#—150# | 94.0 Min | 0.03 Max | | 180#—240# | 93.0 Min | 0.3 Max | 1.5 Max | 3.5 Max | 0.02 Max | | P | 8#—80# | 95.0 Min | 0.2 Max | 1.2 Max | 3.0 Max | 0.05 Max | | 100#—150# | 94.0 Min | 0.03 Max | | 180#—220# | 93.0 Min | 0.3 Max | 1.5 Max | 3.5 Max | 0.02 Max | | W | 1#-63# | 92.5 Min | 0.5 Max | 1.8 Max | 4.0 Max | — | | Refractory Grade | Size sand | 0-1mm
1-3mm
3-5mm
5-8mm
8-12mm | 95min | 0.3 Max | 1.5 Max | 3.0 Max | — | | 0-3mm
0-5mm
0-10mm
0-25mm | 95min | 0.3 Max | 1.5Max | 3.0Max | — | | Fine powder | 180#-0
240#-0
320#-0 | 94 Min | 0.5 Max | 1.5 Max | 3.5 Max | — | |
