Fused with bauxite of high Al2O3 content and additives in arc electric furnace, the brown fused alumina features high hardness, high intension, good self-sharpening , good thermal stability and chemical durability , high temperature -resistance, corrosion-resistance. The brown fused alumina is widely used in abrasive, refractory , ceramic , chemical engineering and metallurgical industries . Chemical specification : Al2O3: 95% min TiO2: 3 Max SiO2: 1.4 Max Fe2O3: 0.2 Max Size: Refractory grade : 0--1mm, 1--3mm, 3--5mm Grit for coated &bonded abrasives: FEPA F & FEPA P 4#---220#