<P> Monel's corrosion resistance makes it ideal in applications such as piping systems, pump shafts, seawater valves, trolling wire, and strainer baskets . Some alloys are completely non-magnetic and are used for anchor cable aboard minesweepers, housings for magnetic - field measurement equipment . In recreational boating, Monel wire is used to seize shackles for anchor ropes, Monel is used for water and fuel tanks, and for underwater applications . It is also used for propeller shafts and for keel bolts . On the popular Hobiecat sailboats, Monel rivets are used where strength is needed but stainless steel cannot be used due to corrosion problems that would result from having stainless steel in contact with the aluminum mast, boom, and frame of the boat, in a saltwater environment . </P> <P> However, because of the problem of electrolytic action in salt water (also known as Galvanic corrosion), in shipbuilding Monel must be carefully insulated from other metals such as steel . The New York Times on August 12, 1915 published an article about a 215 - foot yacht, "the first ship that has ever been built with an entirely Monel hull," that "went to pieces" in just six weeks and had to be scrapped, "on account of the disintegration of her bottom by electrical action ." The yacht's steel skeleton deteriorated due to electrolytic interaction with the Monel . </P> <P> In seabird research, and bird banding or ringing in particular, Monel has been used to make bird bands or rings for many species such as albatross that live in a corrosive sea water environment . </P> <P> Monel is used as the material for valve pistons or rotors in some higher quality musical instruments such as trumpets, tubas and French horns . RotoSound introduced the use of Monel for electric bass strings in 1962, and these strings have been used by numerous artists, including Steve Harris of Iron Maiden, The Who, Sting, John Deacon, John Paul Jones and the late Chris Squire . Monel was in use in the early 1930s by other musical string manufacturers, such as Gibson Guitar Corporation, who continue to offer them for mandolin as the Sam Bush signature set . Also, C.F. Martin & Co. uses Monel for their Martin Retro acoustic guitar strings . The Pyramid string factory (Germany) produces' Monel classics' electric guitar strings, wound on a round core . In 2017, D'Addario string company released a line of violin strings using a Monel winding on the D and G string . </P>

What is the difference between monel and stainless steel