Nickel and Its Alloys

Nickel and nickel alloys are commonly used for applications subject to severe corrosion problems, since they exhibit excellent corrosion resistant properties in addition to having other desirable material properties. They are more expensive, however, than copper alloys and stainless steels. Nickel is a relatively noble metal, and does not readily corrode without the presence of an oxidizing agent. Under certain conditions nickel will form a passive film that protects the metal from corrosion.