Re: [MW:35724] Abridged summary of materials-welding@googlegroups.com - 2 updates in 1 topic

Redo the Hydrotest after the PWHT and NDT.

Regards,

On Fri, Jul 18, 2025 at 2:11 AM <materials-welding@googlegroups.com> wrote:

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• PWHT after Hydro - 2 Updates

PWHT after Hydro

Kannayeram Gnanapandithan <kgpandithan@gmail.com>: Jul 17 02:05PM +0530 *Dears* * Materials P11,P91 & LTCS.* * Is there any provision to perform PWHT after Hydrotest without having to repeat the Hydrotest again ?*   *THANKS & BEST REGARDS,* *KG.PANDITHAN, BE, ...more

sridhar cn <sridharcn305@gmail.com>: Jul 17 07:46PM +0530 *For main pressure welds on materials like P11, P91, and LTCS, **PWHT is essential when prescribed, and the integrity test (hydro) * *must **follow all heat treatments unless the code or a ...more

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