Chemical Engineering - Chemical Engineering Basics - Discussion

5. 

Heating the hypoeutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called

[A]. tempering
[B]. hardening
[C]. annealing
[D]. normalising

Answer: Option C

Explanation:

No answer description available for this question.

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