Welds: The Good, The Bad, The Ugly, Or The Beautiful
- Thread starter Cousin Clyde
- Start date
Finally finished up the pressure vessel Ive been working on. Started out with some 3/4” plate and some pipe, ended up with this big bastard! It weighs in at almost 8k lbs. 
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Zstairlessone
New member
Speedy_RCW
Hooked
black pearl
Hooked
I’m by no means great at welding, but I do it often at work. Welded in a new leaf hanger on a trailer yesterday. 
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It’s all a high grade carbon. It’s part of a system to refine oil that is headed to Canada. It’s heavy duty. Just the blind flange on front with the handles on it weighs 790lbs.
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Speedy_RCW
Hooked
Cool. You guys do hydro or any other NDE there or is that a separate contractor?
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jdofmemi
Active Member
That's pretty cool
I like the way the hinge works, with the adjustment to line it up for the sag. Much easier to bolt it up I'm sure.
Brute
Hooked
Are you in need of a personal hyperbaric chamber?...
WJCO
Meme King
That is cool.
We will hydro it to 468psi. All butt welds were x-ray along with the seam weld. The customer had an outside inspector come in many times during the process to sign of on it.
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I told you wrong, design pressure is 458psi we will test at 597psi
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Cousin Clyde
Hooked
Nice trailer, man. Those overhead welds look pretty clean!
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Brute
Hooked
Speedy_RCW
Hooked
Speedy_RCW
Hooked
Enough to really suck if it catastrophically failed. Lol
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That what I thought. The last half of 2019 I spent building a coil that is going to be hydro tested at 14,800psi. And it didn’t have anywhere near the reinforcement or wall thicknesses as the tank I just finished. So I asked one of our engineers why the overkill on the tank and his reply was that by pipe standards 458psi is low pressure but for a tank with that much surface area it’s a lot. Idk, I just build the stuff[emoji106]
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black pearl
Hooked
Thanks!
I some how became the trailer guy at work
. This one has been a pain, but still a fun project. Just need to finish the deck now. 
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I went in and knocked out a few welds this morning. This is a pulsed mig pipe weld. It’s not as pretty as a tig weld but damn is it fast! 
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