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Material advice needed

Material advice needed

Material advice needed

(OP)

What I im looking for is a material with the following properties:
High density (>8.4 g/cm^3), Low permability (<1.02), easily machined and good weldability. I do of course also search the internet, Matweb etc. and have found some interesting alternatives, but I thought it might be worth to ask if someone here have a suggestion as well.

RE: Material advice needed

Do you have product form limitations (bar, sheet, casting, etc.)?  Is cost a limitation?  What will the item need to be joined to?  Can brazing be substituted for welding?  What type of welding process is currently being used/envisioned?

RE: Material advice needed

and what strength do you need?

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Material advice needed

(OP)
Well, strength is not that important, say above 400-500 MPa in ultimate strenght.
Cost of the material itself is not really of importancy, no limitations there.
About delivery shapes; Bars of about 20-50 mm.

RE: Material advice needed

A copper alloy will be the most available and cheapest.

Regards,

Cory

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RE: Material advice needed

I was thinking along the same lines as CoryPad.  There are many different free-machining bronzes, etc. that would probably meet your requirements.

RE: Material advice needed

Don't forget about weldability! If brazing is an option, so be it.

RE: Material advice needed

(OP)
Yes, to much copper impairs the weldability I belive.

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