Tungsten in steel________?
Araises its melting point
Bgives ductility, toughness, tensile strength and anticorrosion properties
Crefines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Dimproves wear resistance, cutting ability and toughness
Eimproves cutting ability and reduces hardenability
Correct answer
C. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties
Explanation
The correct answer is refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties.