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Tungsten steel nozzle
Tungsten steel nozzle

Tungsten steel nozzle

  • 所属分类:Sandblasting accessories
  • 发布日期:2020-01-13
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Tungsten steel, also known as cemented carbide, refers to a sintered composite composed of 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 the carbide component (or phase) is usually between 0.2-10 μ m, and the carbide grains are bonded together with 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 a certain combination of carbide and binder, it is called "brand".

Tungsten steel is classified according to ISO standard. This classification is based on the material type of workpiece (such as P, m, K, N, s, H brand). The bonding phase mainly uses its strength and corrosion resistance.

The matrix of tungsten steel consists of two parts: one is hardened phase, the other is bonded metal. Bonding metals are generally iron group metals, commonly cobalt and 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 are significantly improved, but the toughness of steel will sharply decrease.

The main application of tungsten resources is also cemented carbide, that is, tungsten steel. Cemented carbide, known as modern industrial teeth, tungsten steel products are widely used.

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