I Might of Really Stepped In It.

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I got to thinking about that damn pipe I got, and why it would be threaded, and have couplings on one end.I'm thinkin' this crap might be casing.Got so upset about it, I went out and looked at it on the trailer.Plain as day........................it's labeled J55Based on what I've been able to come up with...........................................it'  s not suitable for welding because of the high carbon content.https://www.worldironsteel.com/news/...-25170138.html.34-.39 carbon content.  I'm pretty sure this is a disaster waiting to happen.Luckily, it's still on the trailer.Last edited by farmersammm; 23 Hours Ago at 04:04 AM.Reason: bad link
Reply:Damn, that sucks!I bet you had a nagging feeling of something isn't going to work - your fabricator sixth sense.I've had projects like that, where I knew SOMETHING wasn't right, but couldn't find it until it was a huge pain in the rear to correct.Have you considered moving your shipping containers and rigging up an I beam between them?  Make a quick, dirty, and safe "drive thru" or "pull thru" gantry.
Reply:welding wire ER55-G  with similar strength should be selected, which has excellent welding  process performance, more Ni, strong cold cracking resistance, and its  deposited metal has excellent comprehensive mechanical properties.
Reply:

Originally Posted by _Weldman_

welding wire ER55-G  with similar strength should be selected, which has excellent welding  process performance, more Ni, strong cold cracking resistance, and its  deposited metal has excellent comprehensive mechanical properties.
Reply:So, is the guy who gave you a real price for the actual stuff you needed still beneath contempt? Seems like "gets people like you" might mean "people like you get got."I talked to another ckskr, told him what I need it for.........like I tell all the people. Azzhole says he ain't gonna design it for me. I didn't ask him to design it, I just want the dimensions and the f'n price. "Depends on how many feet you want".....................120-160ft 4 1/2..................$6/foot says this f'n hero. For used crap.Splained to the dood in Tulsa that I wasn't an oilfield guy, or a pipe guy. I think in NOMINAL terms. So................is 4 1/2 pipe same as a sch pipe in my terms.........inside diameter + wall. Dood laughed, told me he gets guys like me, and gave me the damn dimensions without lookin' down his nose. You gotta sale Brother
Reply:K'kins talked to the guys at where she works.  They deal with this kind of pipe on a regular basis.Billy, who I trust..........................................."W  e've had it crack when welding it in long sections/welds".  The only way he's had success with it is to skip around, and let short welds cool.  Both of their gin pole trucks were made with 5" casing, and work well.  These are used for everything, including moving pumps, etc.  They exclusively use an E70 Outershield wire in the shop.  I have to get over there, and talk face to face to see what his weld procedures were.....preheat, no preheat, etc.  Just the work "crack" leads me to believe I'm correct in not using the J55.I've also discovered that all used oilfield pipe (at least around here) is sold as "structural" when it's no longer suitable for intended purpose, or is simply surplus stock.  "Structural", when talking to a pipe guy is simply not "structural".  It's pipe they want to move.True structural pipe is stuff they use for HSS..................A500, A252, A53, A139 among others.  All have chemistry which makes them readily weldable.  This stuff is available around here, but a bit more expensive (the stuff I checked out 6" (6 9/16) 1/4 wall $8.75/ft) this is for new pipe with mill certs.  (Considering what I've gone through......I'll believe that when I see the paperwork)The origins of the used pipe is not really certain.  Unless it's stenciled at the mill, and you can see it, it's a crap shoot as to what it actually is.  I guess you could take a metal analysis gun, but I dinna gots one

I'm not terribly concerned with the additional cost.  It's an expensive lesson, but worth it.  I really can't afford any failures.At least, that's my thinking at this point.
Reply:You can weld J-55 with low hydrogen without problems when you get into higher grades with white collars then it gets a little different again joint design is important and gussets design lots of stuff built with casing is welded j-55 and L-80 are common structural steel getting good fit up and good joint design and you will have no problems
Reply:Good luckCheck with welding suppliers most will have a chart.Dave

Originally Posted by farmersammm

I got to thinking about that damn pipe I got, and why it would be threaded, and have couplings on one end.I'm thinkin' this crap might be casing.Got so upset about it, I went out and looked at it on the trailer.Plain as day........................it's labeled J55Based on what I've been able to come up with...........................................it'  s not suitable for welding because of the high carbon content.https://www.worldironsteel.com/news/...-25170138.html.34-.39 carbon content.  I'm pretty sure this is a disaster waiting to happen.Luckily, it's still on the trailer.