[MW:29032] Procedure Qualification Cu-Cu welding

Hello All

,

I would greatly appreciate if someone can advise me on procedure qualification using AWS 5.8- BCuP-3 filler alloy ( F# 103 listed in QB ) involving Cu-Cu base metal.  

The filler alloy is equally suitable to use  either with fusion welding process e.g GTAW or by  Torch Brazing. 

The intended application is Cu-Cu ( C11000)  & base metal thickness range  1/16"- 1/4" 

UTS all weld for filler metal : ~36Ksi  Elongn: 8%

 UTS  of Cu base plate ( UNS : C11000) : 42KSI

Concern is even with wrap around Bend Test failure will be in the WELD. if PQR test per QW ?

Advise best welding procedure to qualify WPS or BPS ( QW or QB) & acceptance ? Any one has any experience? 

Thanks 

Amitabh