PWHT requirement for vessel

[Prasad]

Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group 1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

[james gerald]

In this case, PWHT is not required, provided

1. minimum applied Preheat is 95degC

 2. Size of the Groove weld is less than 13mm

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677

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From: Prasad <prs...@gmail.com>
To: Materials & Welding <material...@googlegroups.com>
Sent: Saturday, August 29, 2015 7:13 PM
Subject: [MW:23361] PWHT requirement for vessel

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[Makrand Sakpal]

What is the base/code backup for your reply? Please let us know so that we can read it.

[S.Mohammed]

vessel subject to pwht then weld prior n do pwht.

bcse any way skirt going to weld with pad which directly weld with vessels.

[Shadab Ansari]

No. Since its a non-pressure part.

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[george....@gr.bureauveritas.com]

I agree

Sent from my BlackBerry 10 smartphone.

From: Shadab Ansari Sent: Δευτέρα, 31 Αυγούστου 2015 - 20:58 To: material...@googlegroups.com Reply To: material...@googlegroups.com Subject: Re: [MW:23374] PWHT requirement for vessel

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[Prasad Ghanekar]

Is their any reference to code that says PWHT not required for non pressure parts. Or only pressure parts required PWHT.

Regards,
Prasad G.

On 31 Aug 2015 19:55, "S.Mohammed" <mohd...@gmail.com> wrote:

vessel subject to pwht then weld prior n do pwht.

bcse any way skirt going to weld with pad which directly weld with vessels.

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[prem nautiyal]

What is the max. nominal thickness of weld involved in skirt support ?

Regards

Prem Nautiyal
9769316004

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On Mon, 8/31/15, Shadab Ansari <shadaban...@gmail.com> wrote:

Subject: Re: [MW:23374] PWHT requirement for vessel

To: material...@googlegroups.com
Date: Monday, August 31, 2015, 9:36 PM

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[Prasad Ghanekar]

40 mm butt welds

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[prem nautiyal]

Hi

As the nominal thickness exceeds 38mm then in my opinion you have to carry out PWHT in-order to relieve the residual stresses, else take the risk of catastrophic failures in service..

Regards

Prem Nautiyal
cell: 9769316004







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On Fri, 9/4/15, Prasad Ghanekar <prs...@gmail.com> wrote:

Subject: Re: [MW:23391] PWHT requirement for vessel
To: material...@googlegroups.com
Date: Friday, September 4, 2015, 12:22 PM

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAEi5r3ajrjmpLYHNcFa%2BR4qRVjeJw7Je_5%2B-s6wY-MGzSWambw%40mail.gmail.com.