[MW:30448] Different brands SAW wire in single PQR

Gents,

I have encountered a WPS where manufacture used different brands of SAW wire and flux in single PQR to cover the range of various brand.

Is it permitted to qualify a single PQR with different brand in same weld ?

We can make separate PQR with each brand and can combine those PQR in a single WPS. But welding a single coupon using different SAW fire /flux combination is not yet experienced before. Could you please shed some light on this scenario ?

Plate : SA 516 Gr.70, 

Wire F7P8EH12K :  ESAB/LONCOLN/Bohler

Thanks & Regards
Muhammed Ibrahim PK

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