Silicon carbide has characteristics such as corrosion resistance, high strength, and good thermal conductivity. On the one hand, silicon carbide can be used for smelting furnace linings and high-temperature kiln components to improve the service life of the lining; On the other hand, silicon carbide can decompose in molten steel and react with oxygen and metal oxides to produce carbon monoxide and silicon containing slag. Therefore, it can be used as a deoxidizer for smelting steel and a modifier for cast iron structure.