Silicon carbide is a new type of strong composite deoxidizer, which replaces the traditional silicon powder and carbon powder for deoxidation. Compared with the original process, the physical and chemical properties are more stable, the deoxidation effect is better, the deoxidation time is shortened and the slag formation is early. It is of great value to reduce the atmosphere, save energy, improve steel making efficiency, improve quality, reduce the consumption of raw and auxiliary materials, reduce environmental pollution, improve working conditions and improve the comprehensive economic benefits of electric furnaces. In addition, silicon carbide has wide applications in high-grade refractory bricks, nozzles, electronic boards, refractory materials.etc.