Gentlemen,
I need some help, I've got myself all bound up over this weld. I am trying to confirm if it's pre-qualified per section 3 of D1.1 or if Ihave to qualify it per section 4.
It's a 2" pipe full penetration welded to a 6" pipe as a "Tee"
Remember this is D1.1 building code.
3.13.4 Tubular T,K,and Y connections talks about the pre-qual requirements of CJP welds welded from one side.
But 3.13.3 discusses there are no pre-qualified joint details for CJP groove welds made in butt joints made from one side w/ out backing.
I'm confused, one papagraph says I can (3.13.4) the other says I can't (3.13.3).
I don't work w/ pipe and TKY stuff very often, once every 6 years it seems like.
Thanks Chris