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Tungsten alloy

Tungsten alloys generally are refractory metals, consisting of two-phase composites , usually W-Ni- Fe or W-Ni- Cu or even W-Ni-Cu-Fe. Some tungsten alloys can also contain Co、Mo、Cr, etc. They have very high melting point and a density twice that of steel and are more than 50% heavier than lead. Tungsten content in conventional heavy alloys varies from 90 to 98 weight percent and is the reason for their high density (between 16.5 and 18.75 g/cc).

The majority of current uses for WHAs (tungsten heavy alloy) are best satisfied with the W-Ni-Fe system. Alloys such as 93W-4.9Ni-2.lFe and 95W-4Ni-lFe 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 most common.

Tungsten Carbide

"carbide." Its general definition of tungsten carbide is described as: Tungsten carbide is an inorganic chemical compound that contains equal numbers of tungsten and carbon atoms. Tungsten carbide can be pressed and formed into shapes from fine gray powder, which is considered its most basic form. The applications of tungsten carbide are widely reflected in industrial machinery, wear resistant tools, abrasives as well as men's jewelry.

Tungsten carbide alloys are prepared by reacting carbon and tungsten at a temperature of between 1400-2000ºC. With the highest hardness of tungsten carbide as 86~93 HRA (68~81HRC), excellent hot working performance, superior wear resistance and high cutting speed, but tungsten carbide is easily prickle, so tungsten carbide is widely used as cutting blade, drill, bits, nozzles, etc. Compared with tungsten carbide, tungsten alloys have special properties as good elongation, small capacity with high density, good corrosion resistance, wonderful shock resistance, high radiation adsorption capability, minimal extruded metal pick-up and high impact resistance and crack resistance, tungsten alloys usually widely used as tungsten alloys radiation shielding, tungsten alloy crankshaft, tungsten alloy counterweight, etc.

Tungsten material is also made into tungsten carbide product, which is a chemical compound that contains carbon and tungsten and is similar to titanium carbide. Tungsten carbide was originally developed for use as a cutting tool, in machine tools applications, where tungsten carbide still finds wide use today. Cemented tungsten carbide is neither a metal nor is it a ceramic. tungsten carbide is a cermet although this isn't a widely used term. In most cases, tungsten carbide is simply referred to as carbide.

Tungsten heavy alloy have high proportion of raw materials for production to clean the metal tungsten alloy fishing sinkers, pollution, compliance with international environmental standards. Large proportion  of mass to small size (>18g/m3), so the resistance to strong winds, light, into the water and sinking fast, and sinker the best alternative to products sold in Europe and other developed countries.

Tungsten alloy with its combination of radiographic density (more than 60% denser than lead), machinability, good corrosion resistance, high radiation absorption (superior to lead), simplified life cycle and high strength is a suitable raw material for radiation protection. It can provide the same degree of protection as lead whilst significantly reducing the overall volume and thickness of shields and containers. Besides, compared with lead or depleted uranium in the past, tungsten alloy is more acceptable in this case, for they are non-toxic.

Tungsten alloys is a best choices for radiation shielding applications, in both medical and industrial settings. Compared to traditional radiation shielding materials, tungsten alloys radiation shield provide excellent value. A high-density alloy can provide the same energy absorption as lead using 1/3 less material. People are taking advantage of tungsten alloy's reliable radiation shielding properties.

Our tungsten alloys radiation shields are used for radioactive source containers, gamma radiography, shields, and industrial instrumentation. The radiation shielding is also serving as collimators and radiation shielding in cancer therapy, as well as syringe protection for radioactive injections.
Chinaungsten tungsten alloy radiation-shielding gives give you best protection from the harmful radiation. Meeting to the AMS 21014 and ASTM B777 material standard, we can offer tungsten alloy radiation shields with finished machining by CNC according to your specifications.

Please do not hesitate to contact us with your drawings or specifications. If you have any questions, our e-mail address is sales@chinatungsten.com sales@xiamentungsten.com. You can also call 0086 592 5129595/5129696/5127878.