Case-hardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal (called the "case") at the surface.
Normally Low carbon steel parts are subjected to case hardening process.
31) Case hardening is a method of producing hard skin on the surface of
Answer is:
Low carbon steel parts
Explanation:
Related ITI Fitter Question Paper 2017 Fourth Semester (Set - 1) with Answer Key
Answer is:
Copper
Explanation:
Key Properties of Copper
Excellent heat conductivity.
Excellent electrical conductivity.
Good corrosion resistance.
Good biofouling resistance.
Good machinability.
Retention of mechanical and electrical properties at cryogenic temperatures.
Non-magnetic
