Welder Identification Requirments? 1

[Bigdog007]

I was just asked what the ASME requirments are for welder Identification stamping is. I always thought if a welder creates a weld they are required to stamp it with thier unique ID stamp supplied by the company. I don't seem to be able to locate it in the code can anyone help me out?

THANKS - Jeff

 

[metengr]

Specifics related to a welder stamp/ID mark are not in the Code, this is a QA program detail that you develop and it is approved by the AIA of record.

 

[CodeRef]

As usual metengr is correct... addl. info at the link below

http://www.wmhuittco.com/images/Weld_Maps.pdf

FAQ731-376 A question properly stated is a question half solved.

 

[weldtek]

Please reference UW 29( c ) and UW 37 ( f )

 

[Kiwi2671]

bigdog007,
Not sure which code you are referring to but as weldtek has stated
ASME VIII - UW 37
(f) Welder and Welding Operator Identification
(1) Each welder and welding operator shall stamp
the identifying number, letter, or symbol assigned by
the Manufacturer, on or adjacent to and at intervals
of not more than 3 ft (0.9 m) along the welds which
he makes in steel plates 1?4 in. (6 mm) and over in
thickness and in nonferrous plates 1?2 in. (13 mm) and
over in thickness; or a record shall be kept by the
Manufacturer of welders and welding operators employed
on each joint which shall be available to the
Inspector.

Also,
B31.1 - 127.6
The WPQ shall also show the identification symbol
assigned to the welder or welding operator employed
by him, and the employer shall use this symbol to identify
the welding performed by the welder or welding
operator. This may be accomplished by the application
of the symbol on the weld joint in a manner specified by
the employer. Alternatively, the employer shall maintain
records which identify the weld(s) made by the welder
or welding operator.

B31.3 - 328.5
(b) Each qualified welder and welding operator shall
be assigned an identification symbol. Unless otherwise
specified in the engineering design, each pressure containing weld or adjacent area shall be marked with the
identification symbol of the welder or welding operator.
In lieu of marking the weld, appropriate records shall
be filed.

Hope this helps,
Cheers,
Kiwi

 

[Duwe6]

Is the question "stamping" or is it "welded ID"? No, stamping is not required. Yes, 100% welder ID is required. It is easier, and thus more likely to not fail when audited, to require each welder to stamp his weld before he walks away from it.
Stamping 'later' doesn't always work -- nobody will 'claim' a ugly weld. Loose tracibility and that weld(s) has to be cut out or NCR'd.
Weld Maps are only as good as the Foreman and QC inspector keep them. If the map is not perfect, welder tracibility has been lost.
Enforcing the "stamp before walking away" rule gives the QC inspector a chance to recover if one weld didn't get stamped. When QC is performing the Final Inspx, the welder is known, and remedial stamping can be performed at that time. Any time much after the Final Inspx, and traceability has probably been lost.