Tungsten alloy also named tungsten heavy alloy. The tungsten alloy weight is more than 2 times than iron or steel. Tungsten alloy illustrate the advantage of the microencapsulated powders. Tungsten alloy generally are refractory which have two-phase composite. Tungsten has very high melting point and have a density twice that steel and are more than 50% heavier than lead. Tungsten content in conventional tungsten alloys varies from 90 to 98 weight percent and is the reason for the high weight. Nickel iron and coper service as a metal binder matrix, which holds the brittle tungsten together which make tungsten soft and easy to machine.
The popular processing of prepare tungsten alloy including desired amount of elemental tungsten, iron, nickel, or copper power. Followed by cold pressing and liquid phase to almost density. The as-sintered material often is subjected to thermo mechanical processing by swaging and aging, which resulting in increased strength and hardness in the tungsten alloys.
The majority use of tungsten are best satisfied with W-Ni-Fe system. The addition of cobalt to W-Ni-Fe alloy is a common approach for slight enhancement of both strength and ductility.       The presence of cobalt within the tungsten alloy provides solid-solution strengthening of the binder and the slightly enhanced tungsten tungsten-matrix interfacial strength. Cobalt additions of 5 to 15% of the nominal binder weight fraction arc most common. Zhengzhou Sanhui is special manufacture and export in past 25 years, We have supply all kinds of pure tungsten alloys.
Welcome to consult us about the tungsten alloys.