Age hardening is a process done at______________?

A.\tHeating up to 200 – 450°C for 15 – 30 min and quenching in waterCorrect Answer

B.\tHeating at 700°C for 10 – 15 min and quenching in water

C.\tHeating at 700°C for 1 hour and quenching in water

D.\tHeating above 700°C for 30 min and quenching in water

Correct Option: A.\tHeating up to 200 – 450°C for 15 – 30 min and quenching in water

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