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Current Position: Home >> Products >> Tungsten Products >> Tungsten Heavy Alloys
Tungsten Heavy Alloys are materials with a high tungsten content and low amounts of Ni, Fe or Ni, Cu. Some tungsten alloy is added Co, Mo or Cr etc. Their densities could be as high as 16.8~18.8g/cc.
  • High density
  • Good machinability
  • Good mechanical properties
  • High modulus of elasticity
  • High absorption capacity against χ-rays and γ-rays
  • Harmless to the health and environment.

  • Protection shields for nuclear radiation such as PET syringe shield, vial shield, isotope container, FDG container, multi leaf collimator
  • Balancing weights such as tungsten sinker bar, heavy metal boring bar, vessels crank camshafts, holders for well logging, racing weights, vibration damping and dynamic balancing weights
  • Substitutional material for Uranium
  • Electroheat upsetting anvil block
  • Balls in bomb
  • High voltage electrical contact
  • Electrodes for Resistance Welding

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Product Standard: ASTM B 777-07
TLWM offers two series of Tungsten Heavy Alloys: W-Ni-Fe(magnetic) and W-Ni-Cu(nonmagnetic).
Chemical Composition, Physical & Mechanical Properties of Tungsten Base, High Density Metal:
Class Nominal Tungsten Density Hardness Tensile Strength Elongation
Weight% g/cm3 Rockwell C MPa %
1 90 16.85~17.25 24~32 700~1200(600~800) 20~33(4~8)
2 92.5 17.15~17.85 25~30 700~1400(500~600) 15~25(3~5)
3 95 17.75~18.35 25~35 700~1200 8~15
4 97 18.25~18.85 30~35 600~1000 8~14
Note: The data in brackets apply to non-magnetic nickel-copper tungsten heavy alloy.

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