Tungsten rod is also called tungsten alloy rod. The tungsten alloy rod is made of metal powder refining in particular high temperature, which uses the special high temperature powder metallurgy technology. Thus the thermal expansion coefficient of tungsten alloy rod material is low, the thermal conductivity is good and the material properties are good. At high temperature, the tungsten alloy rod is used as a material with high melting point and low thermal expansion coefficient. The addition of tungsten alloy elements can improve the machinability, toughness and welding.  Material performance is the related problem based on the elimination in the manufacturing of tungsten alloy rods and other tool materials.
 
Tungsten rod has special properties, such as good thermal conductivity, low thermal expansion, adequate anti resistance, high elastic modulus. So tungsten rod is widely used in various fields. Such as support line, line introduction, printer needle, various electrode and a quartz furnace, filament, high speed tool, auto products and sputtering target.