RE: [MW:6642] PWHT Requirement for UNS N10276#A182 F91

ERNiCrMo-4 with PWHT is required, PWHT temperature as per your applicable construction code for P91 material.

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of subrata das
Sent: Monday, August 23, 2010 11:44 AM
To: materials-welding@googlegroups.com
Subject: RE: [MW:6641] PWHT Requirement

base material specification : UNS N10276 PIPE  TO A182 GR. F91 FLANGE

thickness : 6.35 MM

type of weld : SINGLE ‘V’ GROOVE

service : BOILER FEED WATER SHALL BE INJECTED THROUGH IT.

 

 

Regards

Subrata Das

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: Monday, August 23, 2010 11:21 AM
To: 'materials-welding@googlegroups.com'
Subject: RE: [MW:6639] PWHT Requirement

 

Please specify you base material specification, thickness, type of weld, service restriction if any and code of construction.

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ankur Mande
Sent: Monday, August 23, 2010 11:07 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:6637] PWHT Requirement

You have to simulate the weld in the PQR exactly similar to that being actually done on the job. If your weld shall be going under PWHT in you job, then yes you have to perform pwht on the pqr also. If not then pqr shall not call for pwht.

 

Ankur.

On Mon, Aug 23, 2010 at 9:46 AM, subrata das <sdas@pkgroup.org> wrote:

Dear All

I have a job in which Alloy Steel to Non-ferrous pipe to be weld. While conducting PQR Is it necessary to do PWHT on the test coupon.   

Regards

Subrata Das