Green emery powder/polishing carborundum Green Silicon Carbide is made of petroleum coke and high quality silica as the main raw material, salt as the additive and smelted in the resistance furnace at high temperature.Green crystal, crisp and sharp, and has a certain thermal and electrical conductivity.The micro structure is hexagonal crystal. Abrasives models: Grain: 16#, 20#, 22#, 24#, 30#, 36#, 40#, 46#, 54#, 60#, 70#, 80#, 90#, 100#, 120#, 150#, 180#, 220#, 240# Micro powder: (FEPA) F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 (JIS)240#, 280#, 320#, 360#, 400#, 500#, 600#, 4700#, 800#, 1000#, 1200#, 1500#, 2000#, 2500#, 3000#, 4000#, 6000#, 8000#, 10000# purpose: 1. it are suitable for grinding high-speed,high carbon steel 2.high-grade refractory materials 3.abrasives tool 4.grinding and polishing 5.ceramics 6.sandblasting Chemical analysis: SIC(min) 99.05% SiO2(max) 0.2% F.Si(max) 0.03% F.C(max) 0.04% Fe2O3(max) 0.1% Physical characteristics: color green Nup hardness 2600 Mohs Hardness â?¥9.4 Melting point 2600â?? Specific gravity 3.2g/cm3