These deoxidizer silicon carbide lump are rust-free, anti-corrosion, and anodized as well as powder-coated. The deoxidizer silicon carbide lump found heree with surface treatments namely painting, powder coating, plating, polishing, and more, for better sustainability. These products findude, but are not ...In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements. Silicon carbide has a very high hardness, with a Mohs hardness of 9.5, second only to the world's hardest diamond (10). It has excellent thermal conductivity, is a semiconductor, and can resist oxidation at high temperatures. Due to its stable chemical properties, high thermal …Silicon carbide is mostly used for its hardness and strength, though itsbined ceramic and semiconductor properties make SiC excellent in the manufacturing of fast, high-voltage, and high-temperature devices . Silicon Carbide Properties . Silicon Carbide has a refractive index that is greater than that of diamond.High Hardness Silicon Carbide Sic 88% 90% 97% For Refractory. Silicon Carbide Description. Silicon carbide is a man-made material manufactured through heating silica sand and carbon to high temperatures in the Acheson furnace technique. Silicon carbide is an extremely hard material (Mohs hardness 9.25), is chemically inert and does not melt.