frankrede wrote:_Fnord wrote:If you happen to know the grade/tensile strength of the tubing, we can give you a fairly accurate calculation of its working/burst pressure.
Using the wiki's yield strength for stainless steel I got a burst pressure of Over 9000
(!!!) psi for the 16mm stuff, but this seems kinda high compared to what I was expecting.
Google wrote:520 megapascals = 75 419.6236 pounds per square inch
Anybody know if thats right? I thought stainless was lower than that.
Redo your calculations using the lowest grade stainless you can find on the interenet, and that should be a good idea of a safe pressure
I understand that, the lowest PSI rated gauge stainless has a minimum rating....
Yet I am more interested in.... In hardware terms is there a chance this could be light Stainless tube. It carries the name "Stainless steel" so buy law it must have the 10% chromium (??). It is definatley not plated.....
But the seam it worrying me.... should PSI rated stainless (be hard drawn??) not have a seam?
And would the seam be an indication of low quality/ non PSI rated Stainless tube...
Say in the worst case senerio, it was crudy curtain rail. (Which i'm sure it's not because the original price was over $100 AU)
but say it was.... tube I would imagine, would achieve a minimum PSI rating just from the fact that it is stainless and that it's tube...
I think I might pass up on these, because if there is even a 1 % chance it's no good... then it's not worth it...
I was just hoping for someone to jump in and say " Don't be a moron, it HAS to be above ___PSI because you can't physically make it less than that....
Anyway wishful thinking I guess, it's just so shiney!! Every time I walk past it, it keeps telling me to take it home and it wants to be an air cannon not shoved down the back of a shelf gathering dust....
