Cracks in pipe and fittings

Date 08-01-2009 15:59

I wanted to post the same question in the technical section to get some more specific, technical answers to this problem I've had with cracks right next to the weld on 2" sched 40 pipe. What specifically make this pipe of a lower quality and is it something I can remedy with a different welding technique?

Thanks,

GH Weidman

By MBSims

Date 08-01-2009 16:36

Need more info. What is the pipe material and what type of electrode is being used for the weld?

By 1mancrew (**)

Date 08-03-2009 02:47

Grade B seamless; 2" sched 40. Welded with a 5P+ bead, 70+ hot, fill and cap; all downhill.

Thanks,
GH Weidman

By ssbn727 (*****)

Date 08-03-2009 09:39 Edited 08-03-2009 09:43

API XX Grade B or is it an A-10X or A-2XX grade B???

In other words, are there any markings on the pipe which would give us more specific details as to what is the type of alloy you're dealing with because just saying: "Grade B" is not enough information to offer help... are there any numbers to the left of "Grade B" on the pipe itself? If you could post them, then we might be able to help, or if you have any access to some paper work for the pipe in question.

Respectfully,
Henry

By welderrwc72 (**)

Date 10-10-2009 00:36

grade b = carbon pipe 2"= 2x bigger than 1" any other questions? glen I think you need to quit getting that pipe from critter that mite help the junk pipe problem

By Superflux (****)

Date 10-10-2009 02:07

Geez,
Where'd ya git yer pipe knowins from?? Our 1" pipe is 1.315 O.D. and a 2 incher is 2.375". Now when me and Jethro back in the six grade together done our cipherin', 2 times a bigger wooda made that 2" stuff 2.63" O.D.
Lessins I'm a somehows mistooken.

Duh!! Yore 1" must be 1.1875" O.D.
Thought I was loosin it in my old age.

Shore is glad I learnt the weld'n arts so dont gotta do that hi-powerd number thang.

By ssbn727 (*****)

Date 10-10-2009 04:16

ROTFLMFAO there Superflux!!! :) :) :)

Thanks for the laugh!!! :) :) :)

Respectfully,
Henry

By welderrwc72 (**)

Date 10-14-2009 02:09

Thats funny **** there!!!
Me and Glen actually know a guy named critter, good people. Not even joking.....