SiC(recrystallized silicon carbide) is made from black quartz sand and petroleum coke (smokeless acetylene) as the main raw material. It is made via light resistance from hydrometallurgical.Recrystallized silicon carbide is black opaque body hexagonal crystal and MO-hardness in the 9.15-9.5, which is after diamond and boron carbide with crisp and sharp performance and a certain degree of conductive heat. Recrystallized silicon carbide is processed by low-intensity black metal and non-metallic can be used in fire-resisting materials and the electronic industry.Performance: The various fire-resisting materials made from silicon is not only used in the steelmaking furnace but also in the building materials. With the expansion coefficient, high efficiency and high thermal conductivity, recrystallized silicon carbide can greatly improve the product yield and quality, save lots of fuels and increase the enterprise efficiency.