Hi !
anyType of Heat treatment on D/E after forming depends upon
i) Its Fibre elongation If it is >5% it it is asked by Code or Client spec Generally some code ask for Normalising or Stress relieving
ii) Some timeto control Hardness as per NACE it is recommended to go for PWHT
Therefore it is imporatant to satisfy code/spec requirement
(Heat treatment of formed D/E is not harmful even if it is not addressed in spec but one must ensure that its mechanical properties are not deteriorated )
Regards
Hegde
On Monday, 28 May, 2018, 8:25:10 AM IST, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:
Can you provide me any code reference pl.
On Sun, May 27, 2018 at 8:15 PM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:
Yes--On Sun, May 27, 2018 at 5:07 AM, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:--Dear All,Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.Regards,Venkatramulu
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--Regards,
Dsilva
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