Each grade corundum / silicon carbide size sand - Graces abrasives factory outlets

Each grade corundum / silicon carbide size sand - Graces abrasives factory direct size: 8 # 10 # 12 # 14 # 16 # 20 # 22 # 24 # 30 # 36 # 46 # 54 # 60 # 80 # 100 # 120 # 150 # 180 # 220 # Grade: A Grade Chemical Composition: 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% TiO2 3-5% D grade Al2O3 50-65% Fe2O3 12-20% SiO2 15-25% TiO2 4-6% Physical properties: redox effect: None ; true density:> 3.90g / cm3; hardness (Nu spectrum) 2050Kg / mm2; (Mohs) 9; color: dark brown; Melting point: 2050 ℃; the highest temperature: 1980 ℃; linear expansion (1600 ℃) 8.5 × 10-6C-1.