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Which of the following material is not used in alloy steels?

Which of the following material is not used in alloy steels? Correct Answer Sodium

In alloy steels, there is a big composition used up by iron. Along with iron, there vitally has to be carbon in alloy steels. Along with carbon, there is a presence of other elements such as, molybdenum, nickel and chromium in small amounts.

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