How thick does this aluminium air chamber need to be?

[Matt_mg]

Supposing I want to have 300 and lower psi into an aluminium chamber how thick does it need to be?

I know there are various grades of aluminium but alas I don't know them so knowing it for most of them would be nice, would also help me know how much the prototype could cost :|

[SLICEnDICE]

For startes

You need to find the tensile strength of the material for starters. Then find out how much force is applied by the air on the material, and make sure it does not exceed the material strength.

[doc_Zox]

take a look at pressure regulator bodies on current markers

a Palmer Stabilizer takes 850 down to 120 PSI
Same with an AKA Sidewinder

A Sidewinder is build out of fairly standard guage AL Machined tubing

Whatcha building?

[Matt_mg]

a marker, with air chambers, that's why I need to find out how much aluminium they need so if I get to the drawing board I can make them "non explosive"

[ezrunner]

at least

Well, on Cockers, there are guns that are cut as thin as 60 thousands in the air chamber area. That is too thin for me due to use mis handling and such.

For reference I think Tom's mag bodies are .060 thick

I would go no thinner than .090. The side wall on a WGP cocker body is .150 at the thinnest point.

-rob

[robertjuric]

how could you go about finding if a metals tensil strenght, and calculate the force so that it wouldnt explode? ive got a project idea, but its way to complicated, more like a dream project. but id still like to know.

[Natural Newbie]

www.matweb.com has lots of info on lots of materials.