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Tungsten alloy

Tungsten alloy material

Tungsten alloy material Tungsten alloy material Tungsten alloy material

Tungsten Heavy Alloy(WNiFe, WNiCu)

Tungsten alloy generally are refractory metal, which have two-phase composites consisting of W-Ni-Fe or W-Ni-Cu or even W-Ni-Cu-Fe, some tungsten alloy is added Co, Mo, Cr, etc. It could be made as various shapes, such as rod, cube, block, brick, ring, etc.

Most of the major applications for tungsten alloys are based on its very high density where it is used to control or distribute weight in some way. Tungsten is up to 65% denser than lead and 130% denser than steel. Radiation shielding is a second common application area. Tungsten alloys generally have high strength and good creep resistance however at low temperatures ductility is poor making it unsuitable for some applications. Corrosion resistance and magnetic properties can also be factors in alloy selection.

Usually, Tungsten alloy could be manufactured as the parts of military defense, radiation shielding, extrusion die, some counterweights, such as yacht counterweights, vehicle counterweights, airplane counterweights, helicopter counterweights, boat counterweights, tank counterweights, etc.

Tungsten Alloy Data Sheet


Density (g/cm³)

Tensile strength (MPa)


Hardness (HRC)

85W-10.5Ni-4.5Fe 15.8-16.0 700-1000 20-33 20-30
90W-7Ni-3Fe 16.9-17.1 700-1000 20-33 24-32
90W-6Ni-4Fe 16.7-17.0 700-1000 20-33 24-32
91W-6Ni-3Fe 17.1-17.3 700-1000 15-28 25-30
92W-5Ni-3Fe 17.3-17.5 700-1000 18-28 25-30
92.5W-5Ni-2.5Fe 17.4-17.6 700-1000 25-30 25-30
93W-4Ni-3Fe 17.5-17.6 700-1000 15-25 26-30
93W-4.9Ni-2.1Fe 17.5-17.6 700-1000 15-25 26-30
93W-5Ni-2Fe 17.5-17.6 700-1000 15-25 26-30
95W-3Ni-2Fe 17.9-18.1 700-900 8-15 25-35
95W-3.5Ni-1.5Fe 17.9-18.1 700-900 8-15 25-35
96W-3Ni-1Fe 18.2-18.3 600-800 6-10 30-35
97W-2Ni-1Fe 18.4-18.5 600-800 8-14 30-35
98W-1Ni-1Fe 18.4-18.6 500-800 5-10 30-35
90W-6Ni-4Cu 17.0-17.2 600-800 4-8 25-35
93W-5Ni-2Cu 17.5-17.6 500-600 3-5 25-35

The Advantage of Tungsten Alloy

  • Able to absorb the rays: The ability is so strong that it’s about 30-40% higher than lead;
  • High Thermal conductivity coefficient: 5 times that of die steel;
  • Low Thermal expansion coefficient: Only 1/2-1/3 of that of iron or steel;
  • With good weld-ability and process-ability.

The Applications of Tungsten Alloy

  • Radiation shield, collimator, nuclear shielding, beamstop, PET syringe shield, vial shield, isotope container, FDG container, multi leaf collimator;
  • Balanced part; tungsten sinker bar, heavy metal boring bar, tuyacht, sailboat, submarine and other vessels crank camshafts, holders for Well Logging, Racing Weights. vibration damping and dynamic balancing. Tungsten sinker bar,  Tungsten bucking bar, Tungsten boring bar, Tungsten Sinkers, tungsten alloy counterweights for golf and tungsten alloy dart parts spheres, cubes, and projectile shapes;
  • High-temperature die, Electroheat , brass and copper, Tooling for low-pressure die-casting of aluminum and brass, Hot upsetting dies, Filler rods for die repair, upsetting anvil block, electrical rivet;
  • Shrapnel head; Penetrators;
  • Electrical contact;
  • Balanced ball for missile and plane;  golf and tungsten alloy dart parts spheres, cubes, and projectile shapes;
  • Core for armor piercing bullet measurement.

We supply tungsten alloy products such as WNiFe and WNiCu. The products are tungsten alloy rod, tungsten alloy ball, tungsten alloy block, tungsten alloy ring and tungsten alloy finished parts according to the user's drawing and we can provide other types and sizes tungsten alloy products with varying contents and properties.


Related Links

Tungsten round bar
Tungsten alloy sheets
Material Safety Data Sheet of Tungsten Alloy
Material Safety Data Sheet of Tungsten Alloy (PDF)
Catalog of Tungsten Alloy Products (PDF)

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