[MW:15768] Requirement of PWHT in categorie D

Dear sir.
Kindly replay the below mail
regards
venkat

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------Original message------
From: g.venkatesan06@gmail.com <g.venkatesan06@gmail.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: Thursday, October 25, 2012 2:56:08 PM GMT+0000
Subject: Requirement of PWHT in categorie D

Dear experts,
we are doing welding in a vessel of joint nozzle to dish with reinforcement pad(pipe thick 10mm(32inch), dish thik 20mm & RF pad 20mm) the weld detail in drawing shows bevel(55 degree) followed with fillet(10mm). All are P1 material.
In my question : the total weld metal deposit is 50mm in a joint(40mm CJP & 10 Fillet)
code says above 38mm groove weld for P1 material PWHT is mandatory and also says groove & fillet exceed 26mm in 2inch pipe PWHT is required.
Now we will do PWHT or not in a particular joint. If not kindly tell the reason.
Regards
venkat
welding engineer
trichy.

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Sent from my Nokia phone

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