Yes it is weld throat, and shall be as per construction code. Sec IX does not provide this value, it has to specified by designer. New editions of ASME Sec VII div1 (refer UW20) and div2 (refer 4.8.10) for weld size.
If you refer earlier edition of ASME Sec VIII div 2 (article AF334) states min leak path shall be 2/3rd of specified tube wall thickness. This has been removed in new edition/addenda after 2004. This article AF3 has been modified and included in ASME Sec IX as QW193.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Muhammed Ibrahim PK
Sent: Wednesday, June 16, 2010 9:23 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:5608] Tube to tube sheet welding
Hi,
It is the minimum depth of the weld where weld will withstand the load. If it is agroove cum fillet weld the distance of weld from botom of groove to top of fillet.
Regards,
Ibrahim
On 16 June 2010 00:18, Shadab Alam Ansari (Welding Engineer) <shadabansarialam@gmail.com> wrote:
In Tube to tube sheet weld joint what is the minimum leak path
distance as per ASME SEC-IX.
Regards
Shadab Alam Ansari
Welding Engineer
Olayan Descon
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