GRIT8-220# black silicon carbide for abrasives and polishing

Black silicon carbide is made of quartz sand, petroleum coke (or coal coke), wood chips and other raw materials in the resistance furnace by high temperature smelting, resistance furnace by high temperature smelting, black opaque body, hexagonal crystal, moh’s hardness of 9.15. Product Name Black silicon carbide Model Number 8--220#,240#--8000# Material SiC Feature High Purity Color black Moh's hardness 9.15 Real density 3.2-3.4g/cm3 Melting point 2250 oc Maximum service temperature 1900oc Typical size SiC F.C Fe2O3 H2O Grains ≥98% ≤0.2% ≤0.2% ≤0.5% Micropowder ≥97% ≤0.3% ≤0.2% ≤0.5% Application: 1. Machine parts polishing 2. Metal product polishing 3. Precision instrument polishing 4. Polishing of glass lenses, prisms and flat crystal products 5. Micro powder is suitable for refractory materials, ceramics, special coatings and other industries