Q250
Cobalt in steel
A.
Improves wear resistance, cutting ability and toughness
B.
Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties
C.
Improves cutting ability and reduce hardenability
AnswerD.
Gives ductility, toughness, tensile strength and anti corrosion property
Answer: Option C
Solution
Answer: Option C
Solution:
Cobalt in steel Improves cutting ability and reduce hardenability