It is a function of Thickness and that is the reason it is titled upto 50mm and above 50mm it will be 2Hours minimum . This thickness Title is common for P1 to P11A, for example P5B even 5 mm requires PWHT for which this 15minutes applicable.
Thanks & Regards
J.Gerald Jayakumar
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On Saturday 25 January, 2025 at 09:07:24 am IST, 'ranajit chatterjee' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear Sirs,
As per B31.3 process piping Table 331.1.1-1 refers minimum holing time for PWHT P1 to P11A group materials
1hr/25 mm, 15 min minimum. Refer snap shot.
How can we interpret it ? As per 1hr/25 mm or only we can apply 15 min soaking time.
Kindly clarify.
Regards,
Ranajit Chatterjee
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As per B31.3 process piping Table 331.1.1-1 refers minimum holing time for PWHT P1 to P11A group materials
1hr/25 mm, 15 min minimum. Refer snap shot.
How can we interpret it ? As per 1hr/25 mm or only we can apply 15 min soaking time.
Kindly clarify.
Regards,
Ranajit Chatterjee
--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/materials-welding/1691220753.S.9693.1436.f5mail-224-110.rediffmail.com.1737774705.12002%40webmail.rediffmail.com.
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