Welding Procedures with Revisions
Welding Procedures with Revisions
(OP)
Reviewing a contractor's welding procedures, I find the following;
The WPS number is listed and with a revision 2. The accompanying PQR will show the WPS number "but" with Revision 0. The WPQR will list the WPS but "no" revision is shown.
Per ASME Section lX, Article ll, QW-200 (c) states changes may be made in the nonessential variables of a WPS to suit production requirements without requalification "provided" such changes are documented with respect to the essential, nonessential and whdin required, supplementary essential variables for each process.
Would such change be noted on the WPS with a bullet or Asterisk, or, do I comb through the WPS to find the change. Thank you in advance for any assistance provided.
The WPS number is listed and with a revision 2. The accompanying PQR will show the WPS number "but" with Revision 0. The WPQR will list the WPS but "no" revision is shown.
Per ASME Section lX, Article ll, QW-200 (c) states changes may be made in the nonessential variables of a WPS to suit production requirements without requalification "provided" such changes are documented with respect to the essential, nonessential and whdin required, supplementary essential variables for each process.
Would such change be noted on the WPS with a bullet or Asterisk, or, do I comb through the WPS to find the change. Thank you in advance for any assistance provided.





RE: Welding Procedures with Revisions
RE: Welding Procedures with Revisions
Having only revision two of the WPS, should I concern myself with changes made of the original WPS (rev 0)? Again thank you for responding, as you can see I have not gained proficiency in these procedure related reviews.
RE: Welding Procedures with Revisions
RE: Welding Procedures with Revisions
Note that revisions might include trivial items, might be corrections, etc. For example, a while back, we found one of our WPS's called for pre-heat in a range where it wasn't actually required, so that was revised.