Copper Nickel 70/30 Forged Fittings

Forged fittings are produced from different grades that add superior resistant and mechanical properties. Copper nickel alloy is an excellent alloy for fittings as it is filled with good properties such as erosion, corrosion, and oxidation resistant. The marine industries are using it since history due to such excellent workability, formability and weldability. There is however a mandatory value of copper and nickel that is set by the DEF STAN 02-780 to avoid the chances of impurities in the fittings. The set value is 70 % copper whereas nickel is only 30% in the alloy. This quantity makes it an ideal alloy to work under marine conditions where it doesn’t get affected by the high velocity waters that can be as high as 4.5m/s. Fittings don’t show

corrosion even in the polluted seawater. Corrosion fatigue and stress corrosion cracking is a common phenomenon in marine applications which is not seen in Cupro Nickel 70/30 Forged Fittings. Moreover, they retain the mechanical properties even at negative temperature range that is -300 degree C. It is demanding product in applications due to strength it gets from the annealing. Also, it shows resistance to biofouling which is an inherent property of Cupro Nickel 70/30 Forged Fittings. This is because a protective layer gets formed on the surface of fittings which reduces or deters the marine growth that causes an inhospitable surface. Therefore, they can be used in valve, pump components, heat exchangers, offshore fire water systems, pipe work and condensers.