SG type SiC Heating Elements SiC heating element is a kind of non-metal rod or tube shape high temperature electric heating element. It is made of selected super purity green hexagonal silicon carbide as main material, which is made into blank and silicon crystal under high temperature of 2400�ºC. In oxidizing atmosphere, its service temperature can reach 1450�°C and continuous use life can reach 2000 hours. Technical Index of Silicon Carbide SiC Heating Elements Specific gravity 2.6~2.8g/cm�³ bend strength >300kg hardness >9 MOHâ?²S Tensile strength >150kg/cm ³ porosity rate