[MW:15770] RE: 15768] Requirement of PWHT in categorie D

Dear Venkat
As per ASME Sec VIII Div-1 UCS-56 Notes-2(C)you can preheat to a minimum
temperature of 200Degree F(95degC)is applied and weld both nozzle if have
WPS is available. If you can applied preheat you can avoid PWHT for both
nozzle.
With regards,
Jatin

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of
g.venkatesan06@gmail.com
Sent: Friday, October 26, 2012 8:54 AM
To: materials-welding@googlegroups.com
Subject: [MW:15768] Requirement of PWHT in categorie D

Dear sir.
Kindly replay the below mail
regards
venkat

----------
Sent from my Nokia phone

------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.

----------
Sent from my Nokia phone

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