ASME 9-Writing 1 WPS out of 2 supporting PQRs
ASME 9-Writing 1 WPS out of 2 supporting PQRs
(OP)
Could anybody Please provide an answer..
Is it possible to write a WPS out of 2 supporting PQRs of different Processes(Gtaw and Smaw-both are of 8mm test coupons),provided all other essential variable are within limit.
It seems ASME Section 9, QW 200.4(a) and(b) confusing for me.Could anybody clarify it in simple words.
Is it possible to write a WPS out of 2 supporting PQRs of different Processes(Gtaw and Smaw-both are of 8mm test coupons),provided all other essential variable are within limit.
It seems ASME Section 9, QW 200.4(a) and(b) confusing for me.Could anybody clarify it in simple words.





RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
QW-200.4(a) is in reference to production welding, it is simply stating that you may use multiple WPSs on a single production joint.
(b) gives guidelines of how to qualify a root layer only procedure, used in conjuction with other PQRs.
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
I understood from your reply like this :
1)For supporting PQRs of smaller thickness(test coupons of PQRs less than 13mm)also, a single WPS can be produced,provided all other parameters are conforming.
I was under a wrong impression as you mentioned, that for a minimum 13mm thickness required for supporting PQR
2)If my PQRs,one GTAW and other one SMAW both on 8mm thickness each, its possible me to club supporting PQRs(GTAW+SMAW) and write a new WPS for 8mm thick---Am I Right?
Thanks again DVWE..
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
1. You have a weld joint in production which is 8mm thick.
2. You have a GTAW WPS/PQR which was qualified on 8mm thick plate.
3. You have a SMAW WPS/PQR which was also qualified on 8mm thick plate.
4. You want to create a new WPS which uses a GTAW root pass, and SMAW fill with the existing PQRs that you have.
Are all these correct?
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
Assumptions are Exactly Correct..GTAW-Root and SMAW-Other passes
Hope a reply from your end, will be really helpful for me.
Tahnks
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
RE: ASME 9-Writing 1 WPS out of 2 supporting PQRs
seems to me that combination welding is not aloowed.
your option is a combination PQR with all the parameters
then you can have several WPS's which is different.