In high speed steels manganese is used to tougher the metal...

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In high speed steels, manganese is used to tougher the metal and to increase its

A. Yield point

B. Critical temperature

C. Melting point

D. Hardness

Answer: Option B

Manganese is used to
Increases hardenability, ductility and wear resistance.
Eliminates formation of harmful iron sulphides.
Austenite stabilizer.

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