RE: [MW:25694] Tube to Tubesheet Joint

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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Dr. Georgios Dilintas,

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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