Combination of WPS using PQR with impact test

[Weldingengi]

Dear all,
Im working on the qualification of WPSs for structural pipes API 2H Gr. 50 with AWS D1.1 2015.
We're working with a combination of FCAW ans SAW. I already have two WPSs qualified:

WPS A.- Root and hot pass using FCAW, fill and cap with SAW and backgouging with SAW too.
We qualified this WPS with CVN impact test at -40°F.
Position: 5G FCAW and 1G SAW.
WPS B. Root, hot pass, fill and cap using FCAW.
We also qualified this WPS at -40°F by customer request.
Position: 5G.

But now we need a WPS like "WPS A" but with Backgouging with FCAW. Lets call this WPS "WPS C".
The CWI has told me that i cannot combine WPSs for this proyect because of the CVN request.

My questions is, can i do a WPS combined in the way that i can obtain a WPS C?

I hope you guys can help me. This situation is driving me crazy!
Thanks for advance.
Greetings.

 

[gtaw]

You didn't specify what welding code applies.

Best regards - Al

 

[Weldingengi]

Hi!
In this case applies AWS D1.1 2015 and API RP2A WSD (for CVN test).
Thanks for your help.

 

[gtaw]

I'm not sure what you mean when you say back gouge with SAW or with FCAW.

A WPS qualified for CVN is more restrictive in that you have several essential variables you have to contend with, but I'm not sure exactly what the change you want to make that would require a new WPS. I'm missing something.

Best regards - Al