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RE: [MW:13204] Tack welder qualification

By Materials & Welding
ASME IX recognizes "Welders and Welding Operators". There is no provision for "Tack Welders" in ASME IX. However, ASME B31.3 328.5.1(c) mentions "Tack Welders", and here is the subsequent Interpretation of this clause:

Interpretation 22-35

Subject: ASME B31.3-2008, Para. 328.5.1(c), Tack Welding Welder Performance Qualifications
Date Issued: October 5, 2009
File: 09-1003
Question (1): Does ASME B31.3, para. 328.5.1(c) require that tack welds, whether they are to
be incorporated into the final weld or be removed, be made by a qualified welder?
Reply (1): Yes.
Question (2): Does ASME B31.3, para. 328.5.1(c) require that tack welds be made to a qualified
WPS for that joint?
Reply (2): Yes; see para. 328.5.1(a).
Question (3): Does ASME B31.3, para. 328.5.1(c) allow tack welds on a groove weld joint to be
made by a welder qualified on a fillet weld test?
Reply (3): No. See ASME BPV Code Section IX, para. 303.2.


Regards,

Darcy Morin

Bantrel Management Services
morind@bantrel.com
o - 780 979 6225
c - 780 782 5692

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of samshuddin k
Sent: December 13, 2011 9:49 AM
To: materials-welding
Subject: [MW:13203] Tack welder qualification

Dear Experts
There is any clause in ASME Sec. IX for tack welder qualification.
Which Code explains tack welder qualification for piping regards Samshuddin.K

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