Combine WPS in one CJP

[vu duc thuan]

Dear expert,

Contractor have been qualified 02 WPS  for SMAW process and FCAW process independent welding process. The FCAW process is using the for the CJP  of structure part with only FCAW process and then they brought the SMAW process to Weld on the FCAW process Which have been welded, is this possible to use FCAW process and then SMAW process Without qualifying to combine 02 welding process together.

Code apply: AWS D1.1.

Please advise

 

Best Regards,

 

Thuan

[Lalu Rajendran]

Hi,

Yes you can.

AWS D1.1 Section 3.6.1 Combination of WPSs - A combination of qualified and prequalified WPSs may be used without qualification of the combination, provided the limitation of essential variables applicable to each process is observed.

regards,

LALU

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To post to this group, send email to material...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/006901d18879%243fe13840%24bfa3a8c0%24%40gmail.com.
For more options, visit https://groups.google.com/d/optout.

[Arun Das]

Hi,

Essential variable clause for this case is..

Clause 3.11.1 says that

 " Groove preparations detailed for prequalified SMAW joints maybe used for prequalified GMAW or FCAW " 

I think that combination is acceptable.

Regards,

Arun

Sent from Yahoo Mail for iPhone

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAOwU13v3NwQ68G82UAZ57deShJ%3DyzYFBXRGmq4_wkfOvrc%2BupQ%40mail.gmail.com.