In a hardening process, the hypo-eutectoid steel is

Question: In a hardening process, the hypo-eutectoid steel is
[A].

heated from 30° C to 50° C above the upper critical temperature and then cooled in still air

[B].

heated from 30° C to 50° C above the upper critical temperature and then cooled suddenly in a suitable cooling medium

[C].

heated from 30° C to 50° C above the upper critical temperature and then cooled slowly in the furnace

[D].

heated below or close to the lower critical temperature and then cooled slowly

Answer: Option B

Explanation:

No answer description available for this question.