Карбид кремния черный для супер твердой обработки

Silicon carbide black for Super hard metal processing

#80#100#120

Silicon carbide black is made of quartz sand, petroleum coke (or coal coke), wood chips and other raw materials in the resistance furnace by high temperature smelting, resistance furnace by high temperature smelting, black opaque body, hexagonal crystal, mohs hardness of 9.15.Second only to diamond and boron carbide, it is brittle, sharp and has a certain electrical conductivity.