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Up Topic Welding Industry / Inspection & Qualification / CJP or PJP?
- - By jrw159 (*****) Date 07-16-2008 18:46 Edited 07-17-2008 14:59
OK, I have a shop drawing that calls out a single vee groove weld .25 size.

The material thickness is .28 HSS to .75 plate.

CJP or PJP?

IMHO even though the differance is only .03 it falls under PJP.

jrw159

EDIT: It is actually a single bevel weld symbol. Sorry guys and gals. :-)
Parent - - By hogan (****) Date 07-16-2008 23:01
i would have to agree with you. Any symbol that lists weld size is a PJP unless noted otherwise as far as i can remember.
Parent - - By flamin (**) Date 07-17-2008 01:14
I would also agree.
2.2.4 and 2.2.5.3 say that a PJP groove weld shall have weld size called out.

Jason
Parent - - By jsdwelder (***) Date 07-17-2008 10:41
I am trying to picture this joint in my mind. Wouldn't a .25 weld leave .50 left unfilled on  the .75 thick side ? Am I seeing this wrong?
Parent - - By jwright650 (*****) Date 07-17-2008 10:47 Edited 07-17-2008 11:01
I agree that all of the above thicknesses mention will not be full section if only filled with 1/4" of weld(even the .28" piece). If you did fill completely, you would still have a one sided weld which is a PJP unless the second side is addressed or backing was used.(IOW, not prequalified as a CJP, even with melt-thru)see 2.17.1

edited" whoops, I didn't read the first post very closely....you have a .28" thick piece joining to a .75" thick piece. Don't forget that you will need to transistion this joint see 2.7.1 and 2.16.1.1 plus Figure 2.2

edited again"   wait......is this a base plate to a HSS(T-Joint)? or is this a butt joint?...the info I gave you is for a butt joint where two pieces are being joined of unequal thickness(non-tubular) You threw me a curve this morning when you stated a single V groove where both pieces are prepped...I'm not fully awake yet as you can see.....
Parent - By hogan (****) Date 07-17-2008 13:27
i assumed it was a t connection.
Parent - - By jrw159 (*****) Date 07-17-2008 13:52
I am sorry. I was a little vague. It is HSS to Base plate. I can not scan the print, but I will duplicate the joint callout and attach. :-)

jrw159
Attachment: img-717085628.pdf (6k)
Parent - - By jwright650 (*****) Date 07-17-2008 14:53
That would be a single bevel...not a v-groove. Just beveling the end of the tube and filling will be considered a PJP from a designer's/engineering standpoint, because it is welded from one side.(although it will mostlikely be a full pen with partial melt through due to the wall thickness and being beveled with a .03" land)

You can't go throwing these cruves at me so early in the morning....and expect me to hit a homerun....LOL
Parent - - By jrw159 (*****) Date 07-17-2008 14:58
Sorry, LOL :-)

Thanks for the confirmation.

I must have been in the same condition as you when I typed it up because it is indeed a single bevel and not a single v.

It will of course end up being full pen for the reasons you stated.

jrw159
Parent - By HgTX (***) Date 07-17-2008 15:55
Full penetration but not a CJP in the eyes of the code.

Hg
Up Topic Welding Industry / Inspection & Qualification / CJP or PJP?

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