ASME B31.3-2014- 331.2.6 Localized Heat Treatment after weld defect repair

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Anban

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Oct 2, 2015, 11:57:18 PM10/2/15

to Materials & Welding

Dear Sirs

Pls advise if it is acceptable to ASME B31.3 Code.

Base Material Group - P1 x 10" dia x Sch 160.
Weld Process- GTAW and FCAW.

Carried out RT after PWHT.
Found 30mm defect at 9 o'clock position . Repaired.

Can i perform localized reheat treatment overlapping defect repaired location at least 100mm on both ends?

Thanks

Raghuram Bathula

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Oct 3, 2015, 1:18:08 AM10/3/15

to Materials-Welding

As such there is no restriction in lieu of 360 ° banding, probably you may follow para 8.2.2.2 of API 570, but why do you go for this for a 10" dia pipe?

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