SpudFiles

Hey guys, I found a nice seamless steel pipe in the trash the other day, aside from some light surface rust I was thinking it would make an excellent coaxial chamber. The walls are fairly thin however so I was going to stress test it. My question is if I wanted this pipe to stand up to being pumped up to 3 or 4 hundred PSI over and over would a simple pressure test where I pressurize it to say 500 psi suffice for safety, or could there be concerns with wall integrity over many shots?

is it in this chart ?

http://www.engineeringtoolbox.com/a106- ... d_370.html

Probably. But maybe not. Depends on what sort of risks you like to take.

farcticox1 wrote:is it in this chart ?

http://www.engineeringtoolbox.com/a106- ... d_370.html

Ah, but the problem here is I have no idea the wall thickness or the carbon content of the steel, for all I know it could be wrought iron. All I can really tell you is that the walls are about 1mm thick, about as thick as a penny, and that the pipe was used for some sort of metal frame or chassis for a piece of furniture.

sharpshooter wrote:Probably. But maybe not. Depends on what sort of risks you like to take.

I typically don't take risks that involve shrapnel, but I'm desperate for a good seemless length of steel pipe.

Almost sounds like ornamental tube, but that wouldn't be seamless ?

Could be drawn over mandrel... Which would still have a seam but it would be difficult to see the seam.

Ya know what, I'm just going to go the safe route and buy some copper pipe in a few days. I'm confident that this pipe could take a few hundred PSI without breaking a sweat, but I'm worried about long term material fatigue though.

I'd trust it, the burst pressures on these pipes are higher than you'd expect. I've taken 30x0,5 mm aluminium pipe up to 400 PSI, not advising you to do so however..