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UNS C69400 Copper Alloy Chemical Composition Properties, Grade, Charts and Document

UNS C69400 is a famous high-grade copper alloy that stands out with its outstanding mechanical properties and corrosion resistance. Mainly copper but also manganese, iron, aluminum and nickel upon which you finely tune these other elements to enhance the overall strength and durability of an alloy. C69400 paint gives its excellent thermal conductivity, electrical conductivity, and machinability property causing it to be widely used in naval and ship engineering, electrical engineering, as well as aerospace applications. Moreover, its remarkable ability to resist corrosion, erosion, and fouling by marine organisms (bioufouling) is another factor that makes it the first choice material for hard environments. Detailed sites with charts and documents providing the chemical composition, mechanical properties and grading specifications of the material for the engineers and manufactures to look for reliable materials when making decision for demanding applications.

UNS C69400 Copper Alloy Chemical Composition And Grade Table

UNS C69400 which is copper-nickel-silicon alloy has this corrosion resistance which is out of the ordinary especially in this marine environment. This alloy is composed of about 60% copper, 25% nickel, and 1.5% silicon which contribute to its strength, good thermal conductivity and high resistance to attrition and cavitation the best in the world. It is widely applied in such field as marine engineering, where fortification against biofouling and durability are of high importance. UNS C69400 is frequently used in sea water piping systems, heat exchangers, and in marine systems in particular. Its chemical composition and grade graph show that it is designed to cope with harsh conditions, which are often featured by corrosion speed and strength requirement.

UNS C69400 Copper Alloy Composition Table
Elements Cu Pb Zn Fe Si
Min (%) 80.0 - - - 3.5
Max (%) 83.0 0.30 Rem 0.20 4.5

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