The package of Cu ni alloy ASME SB 466 USN C70600 pipe
Copper-nickel alloy applications include condensers, coolers and other heat exchangers, shipboard desalination plants, compressed air systems, sanitary systems, bilge water, ballast water, brine, fire mains and sprinklers, fuel oil, lubricating oils , warm water heating, grey and black water, hydraulic lines and tank heating.
Copper-nickel pipes are metal pipes made of copper-nickel alloys. Copper-nickel alloys contain copper and nickel, in addition to some iron and manganese for strength. There are different grades of cupronickel material. There are pure copper variants as well as alloy variants. Grade 200 Cuni pipe is a 90/10 copper grade. Meanwhile, copper-nickel has been shown to be highly resistant to seawater, brine, organic compounds, salts, diluted non-oxidizing acids, etc. Copper-nickel pipes are often used in seawater piping systems due to their complete resistance to marine life such as barnacles.