solar flux require requalification

[qcrobert]

We have a WPS qualified using argon purge backing on P8 to P8 matl. that my welders have performance qualified to, do I need to requalify my welders if they now use solar flux backing?

Thank you for your quick response,
Robert

 

[gr2vessels]

The solar flux works as the normal flux in submerged welding, I believe that is an essential variable, hence you need to requalify the procedure and the welders too. I would check also with the flux supplier and the AI.
Cheers,
gr2vessels

 

[qcrobert]

Thank you, my suspicions are confirmed.