Material Selection, AISI 4140?
Material Selection, AISI 4140?
(OP)
Hi,
I am investigating materials for the flat lid of a 10000psi pressure vessel. It would use fresh water to pressure test components for subsea use. And would be operated in a shop environment.
What would be a good choice? A516, A387, A285? Is it possible to use higher strength steels like AISI 4140 and are the allowable stresses in ASME BPVC?
Thanks
I am investigating materials for the flat lid of a 10000psi pressure vessel. It would use fresh water to pressure test components for subsea use. And would be operated in a shop environment.
What would be a good choice? A516, A387, A285? Is it possible to use higher strength steels like AISI 4140 and are the allowable stresses in ASME BPVC?
Thanks





RE: Material Selection, AISI 4140?
RE: Material Selection, AISI 4140?
Thanks, is the carbon content rule a limitation for welded construction only? This lid would be mechanically fastened and not welded.
RE: Material Selection, AISI 4140?
No. Carbon is one of the most powerful strengthers for steels. As such, carbon is limited for welding and ease of fabrication in pressure retaining service. For plate product form in pressure retaining service, 4140 is not a Code-approved material.
RE: Material Selection, AISI 4140?
RE: Material Selection, AISI 4140?
Tell us more......
What is the inside diameter of this "flat" lid..???
Must the lid be flat ?
-MJC