Description: Black Silicon Carbide is produced at a high temperature in an electrical resistance arc furnace with quartz and petroleum coke as it primary raw materials. The final product is sharp and friable with outstanding electrical and thermal conductivity properties. Our Black Silicon Carbide grains are produced using various techniques to optimize shape, surface area, and density. Application: Our Black Silicon Carbide is used for pressure blasting, lapping, bonded and coated application, refractory material, and precision ceramic. Typical Chemistry: Silicon Carbide(SiC) 97.95% Silicon(Si) 0.48% Silicon Dioxide(SiO2) 0.55% Carbon(C) 0.29% Iron(Fe) 0.9% Aluminum(Al) 0.10% Other 0.54% Physical Characteristics: Crystal Form: Hexagonal(Alpha SiC) True Density: 3.21g/cm3 Melting Point: Dissociates at-2500 C Hardness: Knoop(100)-2500; Mohs 9.0+ Color: Black Test Methods: Sizing:FEPA F Standard FEPA P Standard Customer Specific Standards Grains Size: 0-1,1-3,3-5,5-8,8-12mm Macro Grits FEPA F and P 4-220 Micro Grits FEPA F and P 230-2000 Customer Specific Sizes Packing: 1)25Kgs woven bag,40bags on pallet 2)25Kgs woven bag,40bags in big bag 3)25Kgs paper bag,40bags on pallet 4)1000Kgs in big bag Customer Specific Packing