Welding Up a Cracked Rim

[flyerdan]

Kids are all out making IEDs out of plastic bottles and Draino or smashing mailboxes with baseball bats.

 

[rasimmo]

I'm pretty late to the party, but I got a few laughs out of this.

Just to clarify something, or at least try. On a pressure vessel (MBH is the prefix for naming that according to the API) it is completely legal to weld. We had one with a corroded spot that finally went all the way through. The procedure, written and approved by a govt. agency) was to fill the pit with 6010 rods flush to the origanil vessel, then cap wth 7018. After that it was UT inspected.
I'm sure this will just start another arguement but oh well. There is no way I will put the procedure on here for fear it may be considered proprietary or something by my company. I would like to continue my employment here.

 

[LD1]

Just weld the darn thing already.

Pressure vessel or not, I am confident in my welding. If I had an air compressor that leaked, I would have NO reservations about me welding it back up. Let alone a tire:confused2:

 

[k0ua]

I'm pretty late to the party, but I got a few laughs out of this.

Just to clarify something, or at least try. On a pressure vessel (MBH is the prefix for naming that according to the API) it is completely legal to weld. We had one with a corroded spot that finally went all the way through. The procedure, written and approved by a govt. agency) was to fill the pit with 6010 rods flush to the origanil vessel, then cap wth 7018. After that it was UT inspected.
I'm sure this will just start another arguement but oh well. There is no way I will put the procedure on here for fear it may be considered proprietary or something by my company. I would like to continue my employment here.

On my air compressor, it developed a leak at the bottom about 6 years ago at the junction of the original weld. The original weld was a poor weld, instead of a nice clean start and go around the endcap, and stop in line at the end, and tie in, they missed the tie in and went past the original bead line but a left a gap between the two. I rewelded it, I am not sure it could have been 6011 or 6013 I am not sure at this point. I know it wasn't 7018, because all I had at that time was an AC welder so it was one of those two rods.. It has held fine since then. The max pressure in the tank is 130 lbs. OK, Am I at serious risk of death and destruction? The way I figured it I did a better weld than the original guy did. Let's hear what you think.

James K0UA

 

[rasimmo]

If it makes you feel any better the one we welded contains natural gas and crude oil at about 600psi. It is about 30' long and 8' diameter, so there is probably more volume than your air tank I assume. Oh, and my bed is about 40 feet away from it and I sleep pretty good at night.
I work in the middle of the Gulf of Mexico and the salt eats everything up pretty quick. It is fairly common to make this sort of repair.

 

[k0ua]

If it makes you feel any better the one we welded contains natural gas and crude oil at about 600psi. It is about 30' long and 8' diameter, so there is probably more volume than your air tank I assume. Oh, and my bed is about 40 feet away from it and I sleep pretty good at night.
I work in the middle of the Gulf of Mexico and the salt eats everything up pretty quick. It is fairly common to make this sort of repair.

yeah this one is about 36 inches by 14 inches has 130 lbs, and is in the basement. It has held for 6 years or thereabouts.

Thanks

James K0UA

 

[Soundguy]

I am not sure it could have been 6011 or 6013 I am not sure at this point. I know it wasn't 7018, because all I had at that time was an AC welder so it was one of those two rods.. James K0UA

you can get 7018 in an ac rod.. 7014 as well... i rarely weld much with a 70 series rod. stuff I weld won't benefit from another 10k tensile strength.. or low hydrogen..

i take that back.. i do have a couple hi nickle content rods for specialy cast welding.. adn if not mistaken.. they may be a 70 series rod.

 

[AGRIMAN]

i know a ford owner would weld it up and keep working..

I know two that would and I'm sure they have more than once. I can't tell you how many skidder rims I seem that were welded, but I'm sure those guys had them inspected and heat threaded.

 

[Soundguy]

for sure.. all my welded rims have been xrayed........ ( by distant stars! )

 

[buickanddeere]

On my air compressor, it developed a leak at the bottom about 6 years ago at the junction of the original weld. The original weld was a poor weld, instead of a nice clean start and go around the endcap, and stop in line at the end, and tie in, they missed the tie in and went past the original bead line but a left a gap between the two. I rewelded it, I am not sure it could have been 6011 or 6013 I am not sure at this point. I know it wasn't 7018, because all I had at that time was an AC welder so it was one of those two rods.. It has held fine since then. The max pressure in the tank is 130 lbs. OK, Am I at serious risk of death and destruction? The way I figured it I did a better weld than the original guy did. Let's hear what you think.

James K0UA

Different story now with the details you repaired an inferior weld. It wasn't a case of welding a thinned out corroded tank bottom. Should be a perfectly acceptable repair.