There are only about 5 references to GMAW in the ASME section ix code.
So, if GMAW was qualified, except for short-circuiting mode, then why would it not be qualified for GMAW-p.?
QW-304 Welders
Except for the special requirements of QW-380, each welder who welds under the rules of
the Code shall have passed the mechanical and visual examination prescribed in QW-302.1 and
QW-302.4 respectively. Alternatively, welders making a groove weld using SMAW, SAW,
GTAW, PAW, and GMAW (except short-circuiting mode) or a combination of these processes,
may be qualified by radiographic examination, except for P-No. 21 through P-No. 25, P-No. 51
through P-No. 53, and P-No. 61 through P-No. 62 metals. Welders making groove welds in P-
No. 21 through P-No. 25 and P-No. 51 through P-Np. 53 metals with the GTAW process may
also be qualified by radiographic examination. The radiographic examination shall be in
accordance with QW-302.2.
A welder qualified to weld in accordance with one qualified WPS is also qualified to weld in
accordance with other qualified WPSs, using the same welding process, within the limits of the
essential variables of QW-350.
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