Silicon carbide is mainly made of quartz sand, petroleum coke, smelted by above 2500° in the electric furnace, the hardness is between corundum and diamond, the hardness is superior to corundum, it has the function of conductivity and thermal conductivity. It is suitable to process metals and non-metallic materials such as gray cast iron, non-ferrous metals, stone, leather, rubber and so on.it also widely used in refractories, metallurgical additives.
Silicon carbide is produced from quartz sand and high quality anthracite/petroleum coke under high temperature in and electric resistance furnace. It looks black and has a micro hardness of 2800-3300kg/mm2. Abrasive tools made of it, are fit to grind metals and non-metals materials of low tensile strength, for example, grey cast iron, brass, alumina, stone, leather and hard rubber etc. It can also be used for refractory purpose or in electronic industry.
Silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials.
It is also widely used as refractory material and metallurgical additive. Green SiC are mainly used as abrasive for cutting silicon wafer,ceramic polishing etc.