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Why was Mn chosen as a substitute for Ni in the development of the 2XX series of stainless steels?

April 26, 2017chosen Development mn Ni SERIES stainless steels

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Why was Mn chosen as a substitute for Ni in the development of the 2XX series of stainless steels?

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Shortage of Ni during World War II led to the substitution of Mn for Ni in the development of the 2XX series of stainless steels. The steels in which machining and severe forming characteristics are essential Mn is added to the steel as it reduces the rate of work hardening.