Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

30° C to 50° C below lower critical temperature
30° C to 50° C below upper critical temperature
30° C to 50° C above lower critical temperature
30° C to 50° C above upper critical temperature

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Engineering Materials
Carbon steel is

Extensively used for making cutting tools
An alloy of iron and carbon with varying quantities of phosphorus and sulphur
Refined from cast iron
Made by adding carbon in steel

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