which metal is used for harden steel
Answers
Solution :-
Chromium is the metal used to harden the stainless steel.
Most stainless steel contains about 18 % of chromium. Chromium gives hardness and toughness to stainless steel and increases its resistance to corrosion, especially at high temperatures.
Stainless Steel often requires a heat treatment to obtain improved mechanical properties, as well as increase in the level of hardness, producing a tougher and more durable item. The hardening process consists of heating the components above the critical (normal) temperature, holding at this temperature for one hour per inch of thickness and cooling at a rate fast enough to allow the material to transform to a much harder and stronger structure.
Answer:
Chromium is a metal used to harden steel