Re: [MW:29762] Re: ASME B31.3 2016 Ed - PWHT table

If preaheat is done, not required

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Fri, Jun 28, 2019 at 8:58 AM PARAI Reaction Channel <saravanshyla@gmail.com> wrote:

Dears, 

In pursuant to the trailing mail sent by me,

can any one review and let me know whether PWHT is required for the query..

Regards,

Saravanan Sornam,

Korea

On Thu, Jun 27, 2019 at 4:59 PM PARAI Reaction Channel <saravanshyla@gmail.com> wrote:

Dears ,

Could you please let me know whether PWHT is required for piping as per ASME B31.3, 2016 Edition for the P No. 1 Gr.1 welded to itself and also welded with  P No. 1 Gr.2 up to 25 mm thickness of welds, as per the Table 331.1.1.

Also, there is an exemption given in Table 331.1.3, when we preheat of 95 Deg C for greater than 25 mm thk. Hence I am asking this query.

Please check and let me know.

With best regards,

Saravanan Sornam,

Korea

.

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