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Question #80161

Mechanical Engineering

Cobalt in steel __________________?

Options:

A) improves wear resistance, cuttinability and toughness

B) refines grain size and produces les tendency to carburisation, improve corrosion and heat resistant proper ties

C) improves cutting ability and reduce hardenability

D) gives ductility, toughness, tensile strength and anti corrosion property:

E) E. none of the above

Answer: Cobalt in steel improves cutting ability and reduce hardenability.

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