Tungsten carbide is the main raw material for preparation of cemented carbide. Nano cemented carbide is a recently developed tool materials, it is based on the WC powder nano based raw materials, adding proper adhesive and grain growth inhibitor conditions, high hardness, high wear resistance and high toughness of cemented carbide material is produced, its performance is obviously improved than that of conventional cemented carbide, in the hard metal material processing tool, electronic industry of the micro drill, precision molds, medical and other fields has become more and more extensive use. Nano tungsten carbide powder is an important raw material for the preparation of ultrafine P cemented carbide, can produce a high hardness, high wear resistance and high toughness of cemented carbide material, its performance is better than conventional cemented carbide. But the nano tungsten carbide powder with high specific surface area, good catalytic activity of catalyst, can replace the noble metal Pt, Pd and Ir and other traditional. In addition, in the catalytic electrode the anodic oxidation of fuel cell and anticorrosion layer air elements are used in ultrafine tungsten carbide powder. Name of a commodity Average particle size Purity Crystal type Color The specific surface area Nano WC 50 nm 99.5% Spherical Black 5.27m2/g