Dear Friends
Request you to share information
We have a material of SA321H
Specification calls for
The plate should be Solution annealed i.e. Heat to 1040C quench in water after adequate soaking time , and followed by stabilizing treatment like heating to 900-950C with holding for 2 hrs and cool fast need not be quenched in water
However This plate to be tested for IGC Practice E
II want to know
i) What is the significance of Stabalizing treatment once it is solution annealed by Water quenching?
ii) Why it is recommended to cool by Air ( need not be water quenched)?
iii) Why it is in H grade only?
Regards
Hegde P.B.
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