Black silicon carbide is produced at high temperature in an electric resistance type furnace with quartz sand, petroleum coke and bits of wood as its main raw materials. Its hardness is between fused alumina and diamond. Mechanical intensity of it is higher than fused alumina. It is crisp,sharp and have certain degree of conductive heat.Black silicon carbide is higher toughness than green silicon carbide with sic purity 98%,it has been used for processing low tensile strength of material, such as glass, ceramics, stone, refractory materials, cast iron and nonferrous metal, etc.Green silicon carbide can also be used in refractories and electronic semiconductor industry.
F12-F14 Black Silicon Carbide use for sandblasting,rust removal,snagging,heavy duty grinding of steel ingot,leather,salt,floor boards.
F14-F30 Black Silicon Carbide use for casting play burr,cutting billet and steel tube,flat kibbling,steel ingot grinding,marble grinding,or as refractory material.
F30-F60 Black Silicon Carbide use for surface abrasion,outside&surface grinding,centerless grinding,tool grinding of quenching or no-quenching steel profiles,copper or other hard metal.
F60-F100 Black Silicon Carbide use for precision grinding, cutter sharpening,gear grinding,etc.
F100-F240 Black Silicon Carbide use for cutter sharpening,rough grinding,precision grinding,thread grinding.
F280-F600 Black Silicon Carbide use for precision grinding&thread grinding of instrument and matter an gear products.
F600-F2000 Black Silicon Carbide super-precision polishing,mirror polishing,surface lapping,etc.