Re: [MW:32870] P91 - Repair Welding and PWHT

What is total holding time including repairs PWHT  and initial PWHT Holding time.

What was holding temperature?

Vishwas 

On Tue, 15 Feb 2022, 08:42 Sathish V P, <sathishvp86@gmail.com> wrote:

Dear All,

We have a scenario where the SA335P91 - Weld joint had 3 repairs and PWHT Cycles.

Is there any code reference to limit the number of repairs / PWHT in the P91 weld joints or what permissible times PWHT could be done on the same joint.

In this case - Pipe MOC - SA335 P91 - NPS 4 and 13.89mm thick.

Thanks,

Sathish

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