black silicon carbide

Black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials to smelt by electric furnace at high temperature. The hardness of black silicon carbide is between corundum and diamond, the mechanical strength is higher than corundum, brittle and sharp. Meanwhile, it has stable chemical properties, high thermal conductivity, small thermal expansion coefficient, good wear resistance and certain conductivity and thermal conductivity. Anyang Huatuo Metallurgy, professional black silicon carbide supplier and manufacturer, will offer high quality and competitive price black silicon carbide for customers.


Black silicon carbide is a carbide of silicon with metallic luster. The molecule is SiC. In addition, black silicon carbide contains SiC about 98.5%, its toughness is higher than green silicon carbide, and it is mostly used to process materials with low tensile strength such as glass, ceramics, refractory and cast iron etc. The density is 3.18/Cm2, the Mohs hardness is between 9.2-9.5, and the micro hardness is 3300kg/cm3. The black silicon carbide with high hardness and high temperature can not react with strong acid and strong alkali. Moreover, it has good conductive and thermal conductivity as well as strong anti-radiation ability.

Black silicon carbide has various applications in industrial fields. For instance, it is mainly used for grinding and polishing of hardness alloys, titanium alloys, stainless steel, copper, aluminum, zinc, ceramics, stone, agate, jade, high jewelry, electronic components. It is also applied to manufacturer abrasive tools and advanced refractory materials. For example, with special technology, put the black silicon carbide powder to the inner wall of the turbine impeller or cylinder block, it can improve the wear resistance and prolong the service life by 1 to 2 times; High-grade refractory material produced of black silicon carbide has heat-resistant, small in size, light in weight and high in strength with good energy-saving effect. And low grade black silicon carbide(SiC about 85) is an excellent deoxidizer, which can speed up steel making and facilitates control of chemical composition and quality of steel.