Copper-nickel (also known as cupronickel) alloys are widely used for marine applications due
To their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability.
90-10 copper-nickel (C70600, CW352H), an alloy with 90% copper and 10% nickel, is the most commonly used alloy.
They are ductile and readily fabricated, have good thermal conductivity and can be used to cryogenic temperatures without embrittlement.
They have high corrosion resistance to sea water and are not susceptible to intrusive crevice corrosion, pitting and stress corrosion cracking by chlorides.
As such, there are no associated temperature limitations.
They also have an inherent high resistance to macrofouling if not connected galvanically to less noble alloys, a property which is not always appreciated.
It can be found in naval and commercial shipping, offshore oil and gas production as well as desalination and power generation.
Alloys with 30% nickel content (C71500, C71640) and those which are more highly alloyed with aluminum, chromium or tin are used where greater resistance to seawater flow, sand abrasion, wear and galling, as well as higher mechanical properties, are required.
Production Range of seamless size OD6~OD368mm(14 inch) and Welded size is OD368mm~OD914mm(36 inch).
Products-Pipe Division
Our Delivery Plan ( Under 10 ton ) - Pipe
Application
All products of Dongwoo ENC is shipbuilding, marine, freshwater, petrochemical, nuclear power plants, such as the construction industry has been widely used as industrial materials.






