Brown Corundum Size:0-1-3-5-8mm 100mesh-0 200mesh-0 320mesh-0 F12-F800 JIS12-JIS2000 Chemcial Analysis A GRADE Al2O3:95.0 %min Fe2O3:0.35%max SiO2:1.40%max B GRADE Al2O3 80-90% Fe2O3 6-10% SiO2 1.5-4% TiO2 2-4% C GRADE Al2O3 70-80% Fe2O3 8-15% SiO2 2-5% TiO23-5% D GRADE Al2O3 50-65% Fe2O3 12-20% SiO2 15-25% TiO24-6% Physical Properties Bulk density:1.53-1.99g/cm3 Specific Gravity:3.50-3.96g/cm3 Mohs Hardness:8-9 Application: Bonded abrasives and Coated abrasives Surface treatment/finishing lapping, polishing,decorative non-skid tile, and pressure blasting. Ceramic Tiles special ceramics Fluidized Bed Furnaces and Skin / Dental Care Grinding high carbon steel, high-speed steel and chilled steel