Tungsten Heavy Alloys


High density tungsten alloys provide a unique combination of density, mechanical strength, machinability, corrosion resistance, and economy. These versatile materials provide distinct advantages when compared to traditional high-density materials such as lead or uranium. Incredible strength, consistent durability and long-lasting value—our high density tungsten alloys (tungsten heavy alloy) are the perfect choice for radiation shielding, weights and counterbalances, boring bars and grinding quills, crankshaft balancing, rotating inertia members, ordnance components, and high-temperature tooling applications.
W-Ni-Fe alloys and W-Ni-Cu alloys (with tungsten content 90%~97%) are regular tungsten heavy alloys with high density. We offer a variety of high density alloys, available in bars, plates, sheets, foil, rods. We also have extensive machining capabilities, allowing us to provide weights in standard sizes or custom products finished to your required specifications. We also provide tungsten lanthanum alloy products in shaped and machined forms.

Properties of tungsten heavy alloys:

  • High density (17-18.5g/cm3)
  • High melting point
  • Wear resistance
  • High tensile strength
  • Good elongation capacity
  • Low vapor pressure
  • Excellent thermal stability and
  • High radiation absorption capacity
  • Slightly Magnetic

Due to these advantages they are widely used in various fields including the sports, industry and medicine, etc. The most common high density tungsten alloys are Tungsten Nickel Iron Alloy (W-Ni-Fe Alloy) and Tungsten Nickel Copper Alloy (W-Ni-Cu Alloy).

Physical and mechanical properties of Tungsten Heavy Alloys:

Alloy Type (wt%) 90W-7Ni-3Fe 90W-6Ni-4Cu 93W-5Ni-2Fe 93W-4Ni-3Cu 95W-3.5Ni-1.5Fe 95W-3.5Ni-1.5Cu 97W-2.1Ni-0.9Fe
MIL-T-21014 Class 1 Class 1 Class 3 Class 3 Class 4
SAE-AMS-T-21014 Class 1 Class 1 Class 3 Class 3 Class 4
ASTM B777-87 Class 1 Class 1 Class 3 Class 3 Class 4
Typical Density
17.1 17.0 17.6 17.6 18 18 18.5
Typical Hardness RC 25 24 26 26 27 27 28
Yield Strength
(Min, Mpa)
650~850 550~750 650~850 550~750 600~750 500~700 620~670
Elongation % 20~25 8~15 15~20 5~10 8~13 3~5 2~5

Dimensions of Shaped Tungsten Alloys

Product Item Code Length (mm) Width (mm) Thickness (mm) Diameter (mm)
Rod HM74-WR 2 ~ 600 2 ~ 320
Ball HM74-WB 1.5 ~ 200
Plate HM74-WP 10 ~ 600 10 ~ 300 2 ~ 200
Other types HM74-WX Cube, ring, block and other customized shaped products

Application related tungsten alloy products: 

Tungsten Bucking Bar

Tungsten Weights

Tungsten Radiation Shielding

Tungsten Collimator

Isotope Container

Boring Bar

Edgetech Industries LLC provides different kinds of tungsten heavy alloy products, we also manufacture them according to clients’ specifications. Please send us drawings for tailor-made tungsten alloys to sales@edgetechmat.com.

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