Brown Fused Alumina Al2O3: 95%min,SiO2: 1.5%max,TiO2: 3.0% ... %max Size:F 24, 30, 36, ..., F 240. Brown Fused Alumina Mixed Sizes(mm)Main Chemical content(%)Other Chemical content(%)10 ... .0Fe2O3<0.3 Grit SizeCHEMICAL COMPOSITION OF BROWN FUSED ALUMINIUM OXIDE %(by weight)MAGNETIC MATTER CONTENTAL2O3TIO24#~90#95.00min1.50~3 ...