95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina made from Calcined Bauxite, also known as Brown corundum, also called as emery,95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina main chemical composition is AL2O3, and alumina content of Brown Fused Alumina is 97% -70%.95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina also contains a small amount of brown corundum abrasive stones such as Fe, Si, Ti. 95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina is hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also widely used for shot blasting and polishing media. BFA for Refractory materials: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200 #, 325 # Brown fused alumina For Abrasives: F24- F60 Brown fused alumina For Sandblasting: F10 -240 Brown fused alumina For Precision Casting: F80 - F120 BFA for Ceramic, electronic polishing category: F240-F800 95%Min Al2O3 Refractory Material Abrasive Fused Brown Alumina Product name Main Indicators (%) Density (g/cm3) Appearance Usage Al2O3 Fe2O3 SiO2 Brown fused alumina/BFA â?¥95 â?¤0.3 â?¤1.5 3.85 Brown-Red particle Grinding wheels 90 â?¤1.3 â?¤1.5 3.85 Black granular gray powder Polishing,grinding 85 1.8 1.5 3.85 Black granular gray powder Grinding, Cut pieces, sandblasting 80 2.3 1.5 3.85 Black granular gray powder Polishing,blasting 70 4.3 1.5 3.85 Black granular gray powder Floor