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UNS C72900 Copper Nickel Chemical Composition Properties, Grades, Chart and PDF Online

UNS C72900 copper nickel is a copper-nickel alloy recognized worldwide for its outstanding corrosion resistance in seawater ocean. As a pure alloy composed mainly of copper (Cu) and nickel (Ni) with less iron (Fe) and manganese (Mn), it provides better mechanical properties than most of the others, plus it has excellent abrasion and biofouling resistance. Conveniently applied on marine vessels, off shore locations, and water treatment units it shows very good thermal conductivity and weldability. The alloys within the C72900 series have compositions that may vary slightly while still rendering them fully reliable characterized by consistent standards for performance. Internet chemical composition charts and open source PDF resources enable a wider range of engineers to get accurate information about the material properties and applications, which consequently results in informed decision making on the type of material to be used in different engineering projects.

UNS C72900 Copper Chemical Composition And Grade Table

UNS C72900, which stands for nickel-iron-copper, is a nickel-iron based alloy with properties of extremely high performance. It mainly contains the approximate values of 57% of copper, 28% of nickel, and 15% of iron, and it also has small amounts of its essential elements. It provides superior corrosion resistance and especially in the marine environment, the alloy is applicable for the seawater piping systems, condensers and the heat exchangers. It expresses features of high strength, a good capacity for ductility, as well as thermal stability. The balanced structure of UNS C72900 along with it’s resistance to abrasion and biofoulioning makes the components used in industrial settings last longer.

UNS C72900 Copper Composition Table
Elements Cu Pb Sn Zn Fe Ni Mg Mn Nb
Min (%) - - 7.5 - - 14.5 - - -
Max (%) Rem 0.02 8.5 0.50 0.50 15.5 0.15 0.30 0.10

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