COPPER-NICKEL SHEATHING AND ITS USE FOR SHIP HULLS AND OFFSHORE STRUCTURES

90-10 Copper-nickel is an alloy which has been used widely for its cor rosion resistance in sea water. It is also recognised, like copper, fo r its biofouling-resistant properties. As the alloy is readily fabrica ted and welded, its overall properties make it ideal for the sheathing of boat hulls, offshore structures and other applications requiring p rotection against the ravages of marine environments. This paper descr ibes the properties of 90-10 copper-nickel and discusses the various t ypes of sheathing which have developed in more recent times. The perfo rmance of the alloy is demonstrated by exposure trials and service exp erience.