Dear Fede,
Please look at ASME Sec-VIII, DIV-1, Non-Mandatory Appendix A, Basis for Establishing Allowable Loads For Tube To-Tube-sheet Joints.
Para A-3 Shear Load Test, details out the tear test and how it's to be performed. This test is commonly dubbed as Pull-Out Test by many specifications.
Tube –tube sheet qualification test, shall be done as per ASME Sec-IX-QW -193. Sec-IX calls for Visual, LPI and Macro examination. Tear test is normally over and above ASME requirements.
For you case the testing on PQR should be ASME Sec-IX, Visual, LPI and Macro examination + Tear Test/Pullout test. Pull out test would require a separate tube to tube sheet welding block.
Hope it clarifies your query.
Pradip Goswami, P.Eng.
Welding /Metallurgical Engineer-Specialist
Email-pgoswami@sympatico.ca, pgoswami@quickclic.net.
Date: Fri, 14 May 2010 19:54:57 +0400
Subject: Re: [MW:5174] PQR tests for tube to tube-sheet strength weld joint - ASME sez.VIII div.1
From: atulchaturvedi3@gmail.com
To: materials-welding@googlegroups.com
you have to follow TEMA for heat exchanger and accordingly do the Pull-out
test.
On Wed, May 12, 2010 at 1:35 AM, federico.29 <federico.29@fastwebnet.it> wrote:
Dear sirs,
according to ASME sec .VIII div.1, which tests are required to perform in PQR for a tube to tube-sheet strength weld joint? in particular tear test is required? (please give me the reference of para of ASME sec.VIII div.1), material involved is Carbon Steel: A350 (tube-sheet) and A334 (tube) welding process is GTAW machine thickness involved: 70 mm (tube-sheet) and 2.77 mm (tube)
Thank in advance
Fede Lau
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