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Nickel 2

(Chemical symbol Ni) Element No. 28 of the periodic system; atomic weight 58.69. Silvery white, slightly magnetic metal, of medium hardness and high degree of ductility and malleability and resistance to chemical and atmospheric corrosion; melting point 2651 (degrees) F.; boiling point about 5250 (degrees) F., specific gravity 8.90. Used for electroplating. Used as an alloying agent, it is of great importance in iron base alloys in stainless steels and in copper base alloys such as Cupro Nickel, as well as in nickel base alloys such as Monel Metal. Its principal functions as an alloy in steel making: (1) Strengthens unquenched or annealed steels. (2) Toughens pearlitic ferritic steels (especially at low temperature). (3) Renders high chromium iron alloys austenitic.