D1.2 PIPE TO PIPE FILLET WELD

By John P Sullivan Date 04-29-2008 16:44

AWS D1.2:2003

per Figure 3.18
We successfully qualified a WPS
Fillet weld soundness test 5F

Per Table 3.3
Pipe-fillet in the 5F position

Can we fillet weld pipe to pipe T-Y-K?

I am not sure if note 2 affects fillet welds

thanks JPS

By Kix

Date 04-30-2008 13:53

You only get note(2) for a 6g pipe groove CJP weld and yes that would make you good for T-K-Y fillet welds. So I'd have to say no to you being good for T-K-Y fillet connections with the WPS you have. You need to qualify a WPS for a CJP 6g pipe weld. Then your welders need to certify on a 6g pipe or take a 2g and 5g pipe test to be able to weld on T-K-Y connections.

By John P Sullivan Date 04-30-2008 16:14

Thanks for your opinion.
This seems to be a gray area.
But after more research,
I disagree that we cannot weld fillets in any position including T-Y-K.
I think note (2) is for CJP and PJP welds only.
I could be wrong.

JPS

By Kix

Date 04-30-2008 17:06

Deffinetly gray, becuase I don't see why you shouldn't be able to weld any kind of fillet with the WPS you have. I just couldn't find anywhere in the code that had that in writing. The D1 codes are different on a lot of things like essential variables for pulse as an example.