Re: [MW:25742] Tube to Tubesheet Joint

Dear Pankaj,

ASME Sec VIII Div 1 does not require a mock up test to be performed. it is required only for Div 2. Coming back to your question whether you can use the existing PQR for tube to tube sheet welding-- My answer is yes you can use it. please check your client spec if they have asked for tube to tube sheet mockup as some clients do ask for it. Even if they ask or they don't ask for it you can very well use the existing PQR (Grove wed) for the tube to tube sheet welding. Hope your query is answered.

Regards,

Nitin Shetty

On Tue, Nov 15, 2016 at 9:22 PM, John Henning <jhenning@deltak.com> wrote:

Your Code basis for that comment?  Opinions don't matter – cite the Code basis.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Shaunak Upadhyay
Sent: Monday, November 14, 2016 6:12 PM
To: materials-welding@googlegroups.com
Subject: RE: [MW:25695] Tube to Tubesheet Joint

 

No. You cannot use 10.0mm PQR for tube to tubes heel joint.

 

On 15 Nov 2016 02:07, "John Henning" <jhenning@deltak.com> wrote:

Minor adjustment - ASME Section VIII Div. 1 does not mandate tube-to-tubesheet mockup for qualification  - however Division 2 does.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of George Dilintas
Sent: Sunday, November 13, 2016 7:28 AM
To: Meghanadh K
Subject: Re: [MW:25676] Tube to Tubesheet Joint

 

Taking into account that your Pno is 43 you may benefit of the provisions of  QW 202.4.

However before take a final decisions check the requirements of QW 202.6

 

2016-11-12 16:23 GMT+02:00 'prem_nautiyal26' via Materials & Welding <materials-welding@googlegroups.com>:

Hi

 

Assuming your construction code is ASME SEC VIII div.1, 

You will have to carry out a separate tube to tube sheet mock up qualification.

Refer ASME SEC IX and SEC VIII Div 1 for details.

Also tube to Tube sheet mock up qualification will be mentioned in your approved QAP

 

 

 

REGARDS

 

 

PREM NAUTIYAL 

9769316004

 

 

 

 

 

 

Sent from my Samsung Galaxy smartphone.

 

-------- Original message --------

From: pankaj phuse <pankaj.phuse@gmail.com>

Date: 11/11/2016 16:15 (GMT+05:30)

To: Materials & Welding <materials-welding@googlegroups.com>

Subject: [MW:25662] Tube to Tubesheet Joint

 

Dear Experts,

 

Need your guidance on the following:

 

We have tube to tube-sheet joint having Groove + Fillet Weld without grooves & expansion. (Tube-2.7mm, Tubesheet-45mm, P No.43 to P. No.43)

 

I have PQR qualified on plate 10mm Thk. (P No.43 to P No.43, Qualification Range - 1.5 to 20mm).

 

Can I use the same WPS for this joint or we have to qualify new procedure.

 

Procedure qualified as per ASME Sec.IX.

 

Need clarification with reference to clause number.

 

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Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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