Tungsten steel, also known as cemented carbide, is a sintered composite material containing at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel. The grain size of carbide components (or phases) is usually between 0.2-10 μ m, and carbide grains are bonded together by metal binder. Binder usually refers to metal cobalt (CO), but for some special purposes, nickel (Ni), iron (FE), or other metals and alloys can also be used. For an undetermined composition combination of carbide and binder phase, it is called "grade".Carbon Steel Butt Welded Seamless Pipe Fittings
Tungsten steel is classified according to ISO standard. This classification is based on the material type of the workpiece (such as P, m, K, N, s, H). The adhesive phase mainly uses its strength and corrosion resistance.High Quality Color Coating Galvanized and Aluminized Steel Sheet
The matrix of tungsten steel consists of two parts: one is hardening phase; The other part is bonding metal. The bonding metal is generally iron group metal, commonly used is cobalt, nickel. So there are tungsten cobalt alloy, tungsten nickel alloy and tungsten titanium cobalt alloy.
For steel containing tungsten, such as high speed steel and some hot work die steel, the hardness and heat resistance of steel containing tungsten are significantly improved, but the toughness will decrease sharply.
The main application of tungsten resources is cemented carbide, that is, tungsten steel. Cemented carbide, known as the teeth of modern industry, tungsten steel products are widely used.china wholesale market BA 316 316l stainless steel sheet 304 grade