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DEF STAN 02-779 (NES779) Copper Nickel AlloyDEF STAN 02-779 (NES779) Copper Nickel Alloy

Cupronickel - Copper Nickel Alloy

DEF STAN 02-779 (NES779) is a cupronickel alloy (copper nickel) which contains 90% copper and 10% nickel, this alloy was formally known as CN102.

The chemical structure of the alloy is further enhanced by the introduction of iron and manganese to improve overall strength and corrosion resistance. Corrosion resistance of the alloy is outstanding and DEF STAN 02-779 (NES779) is traditionally used in marine environments due to the low rates of corrosion in seawater. The alloy also offers excellent resistance from crevice and stress corrosion. With excellent durability, DEF STAN 02-779 (NES779) is easy joined, formed and fabricated.

Key Features:

DEF STAN 02-779 (NES779) Copper Nickel Alloy offers outstanding corrosion resistance. The alloy has a pleasing aesthetic appearance and is oxidation resistant. it is easily joined and has high ductility and durability. We offer this material in Grade 1 and it is ultrasonically tested to DEF STAN 02-729 Part 5 Issue 3, supplied with 3.2 certification as standard and to NDE02-05 latest revision.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.



Download DEF STAN 02-779 (NES779) Copper Nickel Alloy Datasheet

Typical Applications:

  • Architectural panelling & fascias
  • Marine hardware
  • Heat exchangers
  • Cooling plants
  • Valves & pumps
  • Crankshafts
  • Flanges
  • Hot water tanks


We offer DEF STAN 02-779 (NES779) Copper Nickel Alloy in bar, hexagon, sheet and tube. We offer processing services throughout the Smiths Group - with more than 30 band saws and a fully automated magazine feed CNC rod blanking line, we can process your material to your exact requirements.

Pick a Product

To find out more about Smiths Metal Centres extensive range of high quality copper nickel alloys, click on one of our products on the side menu of this web page.

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on 0845 527 3331 or click here to contact us.