The main engineering grades of copper-nickel alloys were developed for naval condenser and seawater pipework applications.
Copper Nickel alloy (also known as Cu-Ni) pipes and tubes are tubes made from an alloy of nickel and copper. They are known for their excellent corrosion resistance, especially in saltwater environments. This makes them a popular choice for a variety of marine applications, such as seawater piping systems, heat exchangers, and condensers.
ASTM | Name | Cu | Ni | Fe | Pb |
C70600 | 90-10 copper nickel | ~89 | 9.0-11.0 | 1.0-1.8 | <0.05 |
C71500 | 70-30 copper nickel | ~69 | 29.0-33.0 | 0.4-1.0 | <0.05 |
Here are some of the key properties of copper-nickel alloy pipes and tubes: