Brown Fused Alumina Refractory Material & Abrasive

Brown Fused Alumina(BFA) is produced by the smelting of Calcined Bauxite in electric arc furnace at temperatures more than 2000^oC.Also it is called brown aluminum oxide or brown corundum, it can be used for producing ceramic grinding wheel ,resin grinding wheel, abrasive,sandblasting and precision casting.

TYPICAL CHEMICAL ANALYSIS

Al2O3: 95.62% Na2O: 0.07%
TiO2: 2.84% K2O: 0.05%
SiO2: 0.78% CaO: 0.11%
Fe2O3: 0.20% MgO: 0.33%

TYPICAL PHYSICAL PROPERTIES

Specific Gravity : 3.92 g/cc
Melting Point : 2020 ºC
Toughness : 50 (ANSI-B74.8 1987)
Bulk Density : 1.67 - 1.77 g/cc
Crystal Structure : α-alumina macro crystals from
trigonal class,hexagonal system
Color: Brown