Tungsten alloy, also named tungsten heavy alloy, generally is refractory metal, which has two-phase composites consisting of W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe, some tungsten alloys are added Co,Mo,Cr, etc. They have very high melting point and have a density twice that of steel and are more than 50% heavier than lead. Tungsten content in conventional heavy alloys varies from 90% to 97% and is the reason for their high density (between 16.5g/cc and 18.75 g/cc). Nickel, iron and copper serve as a binder matrix, which holds the brittle tungsten grains together and which makes tungsten alloys ductile and easy to machine. Nickel-iron is the most popular additive, in a ratio of 7Ni:3Fe or 8Ni:2Fe (weight ratio). The conventional processing route for tungsten heavy alloy includes mixing the desired amount of elemental powders, followed by cold pressing and liquid phase sintering to almost full density.
racing car weight
The matrix alloy melts and take tungsten into solution during liquid phase processing, resulting in a microstructure through large tungsten grains (20-60µm) which are dispersed in the matrix alloy. The as-sintered material is often subjected to thermo mechanical processing by swaging and swaging, which results in increased strength and high hardness.
The majority of current usages for WHAs (tungsten heavy alloy) are best satisfied with the W-Ni-Fe system. Alloys such as 93W-4.9Ni-2.1Fe and 95W-4Ni-1Fe represent common compositions. The addition of cobalt to a W-Ni-Fe alloy is a common approach for slight enhancement of both strength and ductility. The presence of cobalt within the alloy provides solid-solution strengthening of the binder and slightly enhanced tungsten-matrix interfacial strength. Cobalt additions of 5% to 15% of the nominal binder weight fraction are the most common.
Tungsten Heavy Alloy Main Application
There are many kinds of tungsten heavy alloy products, different manufacture techniques could have various shapes, such as tungsten heavy alloy rod, cylinder, bar, block, brick, plate, tip, strip, sheet, ultra thin sheet, sphere, pellet, ball, disc, ring, tube, etc. They could be used in different fields depend on their special properties, such as small capacity but high density, high yield strength, good hardness, excellent elongation, etc.
When it comes to different functions, tungsten heavy alloy could be widely used for different industries and countries in various fields: such as the sports, including golf, fishing, darts, yacht, racing car; the medical, including radiation shielding, source holder, collimator, isotope container, nuclear syringe; the scientific, including tungsten heat sinks, oil drill, mine exploitation. Due to increasing abundant demand of Depleted Uranium, tungsten alloy is also widely used as a substitution in some parts of military products nowadays. As its high density similar to real gold, tungsten alloy material is very famous as gold-plated substitution. It could be made as gold-plated tungsten bar, golden tungsten brick, gold-plated tungsten bar, golden tungsten paperweight, gold-plated tungsten coin. For its high melting point, tungsten alloys are usually used for many high temperature working environments, such as rocket ignitron, turbine, etc. For its environment-friendly, tungsten alloy material is widely made as tungsten heavy alloy fishing sinker, jig, weights, it is much better than lead in small capacity but high density. Depending on special properties, tungsten heavy alloy is very popular in our life now.
Xi'an Huashan Tungsten Products Co., Ltd, locates in the eastern suburb of Xi'an city. Its registered capital has reached 120 million Yuan; Also there are more than 500 employees in the company, 50 of them are advanced technicians; It covers about 110, 000 square meters. It is a professional manufacturer with nearly 30 years' experiences in producing the tungsten alloy products R&D\ production\selling and after service. It is the member of the Chinese Tungsten Industry Association. The yearly out put is 1200 tons.
The main products are high proportion tungsten alloy products\tungsten-copper alloy and pure tungsten products, which are mainly used in the military industry\the aerospace \ mechanical manufacture\ medical shielding\ petroleum balance and sporting, etc. Our company has the international advanced technology in producing tungsten alloy products and the first-class produce equipments. Passed many years development, Production scale of our company has been the first place in our country and front place in the world, the products quality has achieved the domestic first-class and the international advanced level.
Our company product spread all over more than 20 provinces and cities: North China\South China\East China\Northwest\Southwest\Southeast, etc, and the holding share in the domestic market is continuously raising. Meanwhile, it enjoys a high reputation in the overseas, so many products are far exported to the United States\Southeast Asia\Middle East\ European Union\Africa and other countries or regions and so on...
So far, we have adopted the authentication and registration of the GB/T19001-2000 and the GJB9001-2001 quality control system, qualified the GB/T28001-2001 occupational health safety control system.
Xi'an Huashan Tungsten Products Co., Ltd promotes its spirit that: "excellence, confidence, cooperation and superiority". We sincerely hope to cooperate with the domestic and abroad friends to create a brilliant future together.
