Copper Alloys, Copper-Nickel (Cupro-Nickel)DEFSTAN 02-835 (NES835) Bar & Forgings

An advanced precipitation hardenable copper nickel with improved mechanical properties over 90/10 and 70/30.

DEF STAN 02-835 is a hot forged, stress relieved high strength cupronickel developed primarily for marine and offshore applications. The alloy contains around 14.5% nickel, 4.5% manganese and smaller additions of aluminium and iron to increase the overall material strength and corrosion resistance.

Specified as an MOD (Navy) grade, it combines the inherent corrosion resistance and antibiofouling benefits of traditional cupronickels whilst offering higher strength and toughness levels than the aluminium bronzes.

NES 835 is mainly used in naval engineering, aerospace and defence applications.

Talk to an expertDownload PDF


Product FormImperial SizesMetric Sizes
Round Bar DEFSTAN 02-8351 14" - 6 12"65mm - 135mm
If you do not see what you are looking for, please contact your local service centre with your specific requirements.

Related Specifications

  • DEF STAN 02-835
  • NES835
  • NES 835
  • DEF STAN 835


Chemical Composition


  • Critical marine fasteners
  • Gears
  • Shafts
  • Subsea components
  • High integrity components
  • Stampings


  • High strength
  • Excellent corrosion and biofouling resistance
  • Low magnetic permeability
  • High impact strength retained down to cryogenic temperatures
  • Spark resistance
  • Very good anti galling properties
  • Good resistance to impingement
  • Resistance to hydrogen embrittlement

Find your local Service Centre

An extensive UK network of Service Centres, backed up by a central distribution facility.

  • Experienced multi-product specialists

  • In-house state of the art processing facilities

  • Large fleet of bespoke delivery vehicles

RBL Truck Retouched