(a) For a 1080 steel that has been water quenched,

(a) For a 1080 steel that has been water quenched,

(a) For a 1080 steel that has been water quenched, estimate the tempering time at 425째C (800째F) to achieve a hardness of 50 HRC.
(b) What will be the tempering time at 315째C (600째F) necessary to attain the same hardness?

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