Brown Fused Alumina Oxide for sandblasting grinding polishing abrasive F8 -3000 JIS240-10000 Specifications Material:Al2O3 Fe2O3 SiO2 Usage:abrasive/refractory Color:brown 1.Product Description: Brown Fused Alumina (BFA) is a very refractory, hard and chemically resistant material. It is produced by the smelting of Calcined Bauxite, coke and scrap iron in an electric arc furnace in high temperatures. It has high hardness and great toughness, grinding force is powerful, high temperature resistant,making it applied to the abrasive high-tensil strength high metal and grinding various general steel, carbon steel, alloy steel, general malleable green steel, also as senior refractory materials, widely used in steel, chemical and other industries. 2.Size available Fraction: 12-5mm 8-5mm 5-3mm 3-1mm 1-0mm 1-0.5mm 0.5-0mm 0.3-0mm etc. Grit:F8-F220 Fine: 150mesh-0 180mesh-0 240mesh-0 280mesh-0 320mesh-0 etc. Micro Powder: F230 - F2000 JIS:240 - 10000 Packing: 25kgPVC bags+1MT big bag Standard: FEPA,JIS,GB,P 3. Physicochemical Index Melting Point 2250 Bulk Density 1.53-1.99 g/cm3 True Density 3. 90 g/cm3 Mohs Hardness 9.0 Al2O3 95.0Min Fe2O3 0. 30Max SiO2 1.50Max 4.Applications: -Brown fused alumina is suitable for making ceramic and resin bonded abrasive tools, used for grinding metals of high-tensile strength, such as carbon steel, general purpose alloy steel, malleable cast-iron and hard bronze etc. -It's widely used as surface preparation abrasive, cleaning, grinding, polishing of various metals, glass, rubber, mould industries. -It also can be used as refractory material.