Nickel Alloys, Cupro-Nickel (Copper-Nickel)Alloy 500 Bar & Forgings

A precipitation hardening nickel-copper-aluminium alloy with outstanding corrosion resistance.

Alloy 500 is a precipitation hardenable copper nickel alloy, with minimum 63% nickel and the addition of titanium and aluminium that can be heat treated to give very high strength. The alloy has similar corrosion resistance to alloy 400 in a wide range of media including seawater, hydrofluoric acid, sulfuric acid and alkalies.

This alloy is supplied hot worked and aged (with cold worked mechanical properties)

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Product FormSize Range
Round Bar NA18 2.43375 UNS N0550034" - 4"
If you do not see what you are looking for, please contact your local service centre with your specific requirements.

Related Specifications

  • ASTM B865-04 (2015)/UNS N05500
  • BS 3076 NA18
  • NACE MR0175/0103


Chemical Composition


  • Pump and valve components
  • Drill collars
  • Propellers
  • Shafts
  • Fasteners and springs
  • Sensors and electronic components
  • Heat exchanger components


  • Excellent corrosion resistance
  • High strength and hardness
  • Low magnetic permeability
  • Excellent low temperature properties
  • High fatigue strength
  • Easily processed and machined
  • Resistance to chloride stress corrosion
  • Good resistance to impingement attack

Additional Information


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