G5 carbide steel Description: Hardness: HRA84 Flexural strength: 2800 Usage: Impact mold, screw mold. Carbide is a high hardness of refractory metal carbides (WC, TiC) powder as a main component micron to cobalt (Co) or nickel (Ni), molybdenum (Mo) as a binder in a vacuum oven or hydrogen reduction furnace sintering powder metallurgy products. Ⅳ B, Ⅴ B, Ⅵ B metal carbides, nitrides, borides, etc., due particularly high hardness and melting point, referred to as cemented carbide. Below carbide focus to illustrate hard gold-bearing structure, characteristics and applications. Ⅳ A, Ⅴ A, Ⅵ A metal and carbon to form metal carbides, due to the small radius of carbon atoms, can fill the gap in the metal character of the original lattice and retain the form of the metal to form a sufficient solid solution.