hardness 9 0 green carborundum

Green Carborundum Sic Silicon Carbide for Abrasive Knife Grinder Hardness 9.0-9.5 Source Artificial Abrasives Product Description JIS Standard Green silicon carbide Green silicon carbide is made of quartz sand and petroleum coke through high-temperature melting. The production method is basically the same as that of black silicon carbide, but the requirements for raw materials are different. The smelted crystals have high purity, high hardness...

...Carborundum Grit Black Silicon Carbide Powder For Abrasive And Refractory Product Description Silicon Carbide Abrasive Powder Silicon carbide includes black silicon carbide and green silicon carbide, among which: black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, which are smelted at high temperature in a resistance furnace. Its hardness......