Copper Nickel vs Copper

Copper Nickel vs Copper

Difference Between Copper Nickel and Copper

Copper-nickel (also known as cupronickel) alloys. A big difference between Copper Nickel Vs Copper is that copper nickel is silver in color and copper is reddish brown in color. Copper nickel 70/30 consists of 70% copper and 30% nickel, to which is added manganese and iron. 90/10 copper nickel properties is that it contains 90% copper and 10% nickel and so as to increase its strength and resistance to corrosion, small amounts of iron and manganese have been added to it. Cupro nickel coins are used a lot today. These coins made from copper nickel, contain a mixture of 25% nickel and 75% copper, as well as a small amount of manganese.

Some of the most important copper nickel alloy properties are inclusive of good tensile strength, excellent thermal conductivity, inherent resistance to macrofouling, resistance to corrosion and superb ductility. Alloy of copper and nickel is called Cupronickel. When considering the Molecular Formula of Copper Nickel Vs Copper, the Molecular Formula of copper nickel is CuNi and that of copper is Cu. Copper nickel alloy chemical composition consists of 90% copper and 10% nickel, but to this, various other elements are added to increase its castability, corrosion resistance, weldability, hardening and strength. Copper nickel alloy corrosion resistance is simply fantastic, more so in marine salt water environments.

Copper Nickel Alloys

  • Copper Nickel C70600, 90-10 copper-nickel (C70600, CW352H)
  • Copper Nickel C71500, 70-30 copper-nickel (UNS C71500, C71640)
  • 66-30-2-2 Cu-Ni (Cunifer), UNS C71640, CW353H
  • 95/5 CuNi, UNS C70400
  • 80/20 CuNi (CDA 710), UNS C71000
  • Cu-Ni-Cr (Chromium-Copper-Nickel), UNS C72200
  • Cu-Ni-Sn (Copper Nickel Tin Alloy), UNS C72900
  • Cu-Ni-Al (Cupro Nickel Aluminum Alloy), CuNiAl
  • 75-25 Copper-Nickel, UNS C71300
  • 55-45 Copper-Nickel

Copper Nickel Specification

90/10 70/30
  • CN102
  • C70600
  • C70610
  • CW352H
  • DEF STAN 02-879 Annex C
  • DEF STAN 02-779
  • NES 779
  • BS2870
  • BS2874
  • ASTM B151
  • EN 12163
  • 2.0872
  • NF A51-115
  • CuNi10Fe1Mn
  • CN107
  • C71500
  • C71520
  • CW354H
  • DEF STAN 02-879 Annex B
  • DEF STAN 02-780
  • NES780
  • BS2874
  • EN 12164
  • ASTM B151
  • DGS320
  • 2.0882
  • CuNi30Mn1Fe


Copper Alloys

  • Electrolytic Tough Pitch (ETP) Copper
  • Oxygen-free (OFHC) Copper
  • Deoxidized High Phosphorus (DHP) Copper
  • Tellurium Copper
  • Beryllium Copper

Copper ALLOYS Specification

Copper Alloy Name BS UNS BS EN Others
C101 C101 C11000 CW004A NF A51-118-1
C103 C103 C10200 CW008A NF A51-118-1
C106 C106 C12200; C12210; C12300 CW024A BS2870; BS2871; BS2874
C107 C107 C14200 BS2871; BS2875  
C109 C109 C14500 CW118C 2.1545
C110 C110 C10100 CW009A BS1433, BS3839