PWHT hold time for PQR with Charpy impacts

[Guest102023]

I understand the Section VIII-D1 rules for hold time of course, but I have a question concerning the following scenario:

(1) WPS was previously qualified without impacts, PWHT hold time 1 hour.
(2) Client wishes to augment the same WPS to add Charpy impact testing, PWHT hold time now 4 hours.

Q: Assuming the tests pass, is it valid to update the entire WPS to reflect 4 hours hold time, since initially it was a non-essential variable?

 

[fegenbush]

I suppose there wouldn't be code violation to show the hold time as 4 hours, but I don't like the idea of changing a WPS to appease a single client. If the client wants that increased hold time on their job, that is a requirement in excess of ASME and can be handled contractually.

 

[metengr]

Yes, because of the new supporting PQR. Revisions to WPS are permitted with proper justification and explanation.

 

[Guest102023]

metengr,
That answer presented itself to me as I wrote the question, but thanks for the confirmation.

 

[weldtek]

Or just create a new WPS. It's common to have separate WPS' for impact tested vs. non-impact tested applications.