Black Emery Grains Black Silicon Carbide Micropowder Black Silicon Carbide Powder Price Product Name Black Emery Grains Black Silicon Carbide Micropowder Black Silicon Carbide Powder Price Material quarts sand and petroleum coke Size 60#-3000# Color Black Standard FEPA JIS SiC 98%min Fe2O3 0.20%max F.C 0.15%max Maximum service temperature 1900℃ Mohs Hardness 9.15 Specific Gravity 3.2-3.4g/cm3

China has more than 200 silicon carbide smelting enterprises with an annual production capacity of more than 2.2 million tons (including more than 1.2 million tons of green silicon carbide blocks and about 1 million tons of black silicon carbide blocks). The smelting transformer power is mostly 6300~12500kVA, and the largest smelting transformer is 32000kVA.

Due to the low natural content, silicon carbide is mostly artificial. The standard method is to mix quartz sand with coke, use the silica and petroleum coke, add salt and wood chips, put it into an electric furnace, heat it to a high temperature of about 2000 °C, and obtain silicon carbide powder after various

Silicon carbide is made from quartz sand and petroleum coke. Black silicon carbide price has been on the rise since 2018, climbing to over RMB6,000 per ton in January 2019 because of stricter oversight on environment protection and robust upstream and downstream demand. Green silicon carbide price otherwise went down compared with previous years with