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Question

Which metal is used to make alloy steel for armour plates, safes and helmets?

A
Al
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B
Mn
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C
Cr
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D
Pb
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Solution

The correct option is B Mn
Mn is used to make alloy steel for armour plates, safes and helmets. Mn increases harden-ability by lowering transformation points and causing transformations to be sluggish.

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