Interpretation Detail
Print to PDF
Standard BPV Section IX
Designation:
Edition/Addend 2013 Edition
a:
Para./Fig./Table QW-322.1
No:
Subject SC IX; QW-322.1 - Expiration of Qualification
Description:
Date Issued: 11/26/2014
Record Number: 14-1451
Interpretation IX-15-13
Number :
Question(s) and Background: A Welder is qualified performing a groove weld using combination of the Gas
Reply(ies): Tungsten Arc Welding (GTAW) and Shielded Metal Arc Welding (SMAW) process(es). The welder
then performs separate fillet welds using the GTAW and SMAW processes within the required six
(6) month period to extend his qualifications. QW-322.1 (a) (1) states that all a welder has to do is
too weld with the process for which he was qualified, under the supervision and control of the
qualifying organization(s) to extend his qualification for an additional six (6) months.
Question: May a welder qualified to weld a groove weld using the combination of the Gas Tungsten
Arc Welding (GTAW) process and the Shielded Metal Arc Welding (SMAW) process extend his
qualifications for an additional six (6) months by welding separate fillet welds with the GTAW
process and the SMAW process?
Reply: Yes
Print to PDF
Standard BPV Section IX
Designation:
Edition/Addend
a:
Para./Fig./Table
No:
Subject Section IX, QW-408.2 and QW-408.5
Description:
Date Issued: 11/02/1981
Record Number: BC-81-456
Interpretation IX-82-48
Number :
Question(s) and
Reply(ies): Question (1): A welding procedure has been qualified to weld P-No. 8 material using an
open butt joint design with argon backing gas. Per QW-408.5, can the argon backing gas
be deleted without requalifying the procedure?
Reply (1): Yes. QW-408.5 covers the deletion or addition of backing gas and since this is
a non-essential variable for applicable processes, requalification is not required.
Question (2): Does QW-408.2 refer specifically to shielding gases or all gases used
during welding?
Reply (2): QW-408.2 refers only to shielding gases.
Print to PDF
Standard BPV Section IX
Designation:
Edition/Addend 2015
a:
Para./Fig./Table QW-356, QW-408.8
No:
Subject SC IX; QW-356 and QW-408.8
Description:
Date Issued: 09/25/2017
Record Number: 17-1473
Interpretation BPV IX-17-63
Number :
Question(s) and Background: A welder is qualified on P-No. 8 pipe using GTAW with inert gas backing.
Reply(ies):
Question: May the welder weld P-No.1 material without inert gas backing?
Reply: No.
Print to PDF
Standard BPV Section IX
Designation:
Edition/Addend 2017
a:
Para./Fig./Table QW-408.9
No:
Subject SC IX; QW-408.9 - Backing Gas
Description:
Date Issued: 02/13/2018
Record Number: 17-3012
Interpretation BPV IX-18-13
Number :
Question(s) and Question: May a P-no. 45 GTAW PQR without backing gas support a WPS for GTAW welding with
Reply(ies): backing gas, with inert backing gas, or with backing gas containing a mixture of inert and non-inert
gasses, per QW-408.9 without requalification?
Reply: Yes.
Print to PDF
Standard BPV Section IX
Designation:
Edition/Addend 2021
a:
Para./Fig./Table QW-408
No:
Subject BPV IX-2021: QW-408, Backing gas purity
Description:
Date Issued: 01/17/2024
Record Number: 22-1720
Interpretation BPV IX-24-03
Number :
Question(s) and Question: For a single backing gas or combination of backing gases, is a change in the purity of the
Reply(ies): backing gas an essential variable?
Reply: No.
Copyright © 2024 by the American Society of Mechanical Engineers. No reproduction may be made of this material without
written consent of ASME
