Howdy,

I am in need of some advice, tips, etc. on welding 17-4PH. I am trying to get a procedure test qualified using the GMAW process.

Some info on the test...

1/2" 17-4PH
Flat Position
Single V
Backgouged
GMAW
98% Ar ---- 2% Oxygen
ER630

We have been able to pass Xray, but they are failing the bend tests. I am unfamiliar with this material so it is getting the best of us. Is there a certain preheat or post heat needed on this? I couldn't find anything in my recent research.

Thanks in advance for the help!