Anyone know how to cut open an empty disposable propane tank?

[wgr]

i am a journeyman pipe fitter and i have never seen a pipe cutter that big.
fill it with water...
by the way, gas will hydrolize in water, turning water flammable.
use a portaband.

i have one that will cut 5in pipe

[Mooseman]

Those cylinders are under 4 inches...http://www.ridgid.com/Tools/Heavy-Du...l-Pipe-Cutters

[troy_mclure]

I've done it several times. I've used a hacksaw every time. Once I picked up the wrong cylinder and cut one 1/2 full. I got a bit of frostbite on my fingers from that. I never emptied any of them. I've also shot many of them full and empty. Even placed in a hot fire and shot they don't blow up, mostly put out the fire and spin around.

[Mooseman]

I've done it several times. I've used a hacksaw every time. Once I picked up the wrong cylinder and cut one 1/2 full. I got a bit of frostbite on my fingers from that. I never emptied any of them. I've also shot many of them full and empty. Even placed in a hot fire and shot they don't blow up, mostly put out the fire and spin around.

SO you openly admit to being Dangerous to be around ???

[GP100man]

Go to the plumbing store get a reducer for 2 1/2" pipe to 1" screw in a 1" plug , add pipe as needed.

When fired the first time stay clear of the fumes as it`ll be galvanized burning off.

[GP100man]

I've done it several times. I've used a hacksaw every time. Once I picked up the wrong cylinder and cut one 1/2 full. I got a bit of frostbite on my fingers from that. I never emptied any of them. I've also shot many of them full and empty. Even placed in a hot fire and shot they don't blow up, mostly put out the fire and spin around.

Sometimes they windup in the darnedest places !!!!

Nuttin like throwing a handfull of 22s in a campfire when everyones backed up to it trying to warm !!!

Things seem funny when your younger & dumber !!!

Now all I get is a bad case of the "What If`s" !!!!

[shotman]

come on now a pipe fitter and hasnt cut 3in this isnt a grill tank

[KYCaster]

Alright, make that 22 paces.

Make it 150 paces.....and get under a roof before you shoot!

Jerry

[dnotarianni]

Instead of getting into cutting a small cyl that will have a short life for your application why not just get a piece of 3 or 4" pipe and have your local welder weld a plug on the bottom. Long life for both you and the pot. When I cut propane cylinders for pots and grills I pull the valve and fill with water and dish soap and leave alone for a week then drain and purge with CO2 while cutting. 53 and still have all body parts!
Dave

[zuke]

How I cut one was to open the vent slowly and come back a couple day's later.
While it's still open fill it to overflowing a couple time's from a garden hose.
Then unscrew the valve,it's brass so keep it for a scrap run!
Once unscrewed if you smell any propane fill'er up again and leave it overnight,if that make's you feel better.
Figure out where your gonna cut it,get the grinder and a cut off disk and go to it!
It'll take about 7-10 minute's do cut it.

[mud lake]

A nitrogren purge was the safety requirement whenever we cut into any vessel at Prudhoe Bay - then only after a complete inspection by the Safety Department and holy water being sprinkled on by a half-dozen experts. I remember a man killed in a refinery down in Texas years ago when he fired up a cutting torch before getting the okay from Safety. Remember, like Mother Nature industrial physics are unforgiving B- itches!

[geargnasher]

Graphite crucibles aren't that expensive, and bean cans are almost as good as propane cylinders for melting aluminum.

I've cut open hundreds of spin-on engine oil filters with purpose-made chain cutters similar to those that the exhaust guys use for making on-car cuts in tight places, that might work as well.

Gear

[nanuk]

Nuttin like throwing a handfull of 22s in a campfire when everyones backed up to it trying to warm !!!

one night during a moose hunt, a buddy dumped out his packsack into the fire pot.

BANG>>>

He sez it was prolly a ketchup pack...

it left about 50 dents on the firepot.

we found a shotgun shell head in the pot next morning.

lucky no one lost an eye. we were all sitting around within 5 ft of the pot, and were a 3 hour boat ride to the trucks, and a 2.5 hour drive to a hospital. It was the middle of the night, and it was snowing heavily.

[Mal Paso]

i am a journeyman pipe fitter and i have never seen a pipe cutter that big.
fill it with water...
by the way, gas will hydrolize in water, turning water flammable.
use a portaband.

A Rigid 4-S would do the job.

[Flinchrock]

DON'T do that!! Wrong on any number of levels.

But a LOT of fun!

[Jim Flinchbaugh]

Yeah, an exhaust shop that does hot rod diesel work should have a tube cutter to make that easy as pie

[maglvr]

Hand powered hacksaw, take ya all of 2 minutes.
Done it many times.

[fowl_language]

I've shot a couple with my .243 at 200 yards just to see what would happen (1 lb disposables). As many have indicated they want to step back far, I thought so too that's why I did it I wanted a bang...needless to say nothing happened with any of them. Unless you have tracers in your sidearm you'll probably be ok.

Now that being said, I do not condone or support the use of firearms to waste good propane, it was a few years back i've learned what money is and trained some brain cells. Oh yeah...I suppose it could be dangerous too.

I would suggest if you're looking for something for the Al, maybe an old oxygen tank or similar? They are generally much thicker and larger, then just cut with ox/acet.

[letsmeltlead2693]

Lets be realistic, I live in Nashville, you shoot a gun a the cops are on you like iron to a neodymium magnet. Don't have a gun to shoot, can't make a fire as I am not trying to kill myself. Can I use a pipe cutter to score the valve or neck of the tank then hammer it off since scoring it would make it weaker?

[Freightman]

Did a search and came up with a graphite crucible for $45 shipped might be cheaper than a ride to the hospital or worse to the morgue.