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Question on material used in designing pressure vessels

Question on material used in designing pressure vessels

Question on material used in designing pressure vessels

(OP)
My question is pertaining to the material which can be used in designing a low-pressure (27psi) pressure vessel containing SF6 (non-lethal). Can JIS SS400 (equivalent to ASTM A36) mild carbon steel be used when manufacturing such a pressure vessel? I see in the ASME code that SA-36 can be used under certain criteria (section UCS-6), but I am not sure if SA-36 is the same as ASTM A36. Any insight would be appreciated.

Thanks,
vagator

RE: Question on material used in designing pressure vessels

Yes, you can use the JIS G3101 SS400 which is equivalent to ASME SA 36 / ASTM A36 and use the listed allowable design stesses in ASME II Table D under SA-36 classification. However, the JIS G3101 SS400 is a structural steel with no carbon or manganese limitation, so you should specify in PO, a reasonable low limit for improved weldability (say  Carbon less than 0.25% and minimum 1% Manganese;- also refer to spec ASME SA-36).
cheers,
gr2vessels

RE: Question on material used in designing pressure vessels

vagator,

Quote:

Can JIS SS400 (equivalent to ASTM A36) mild carbon steel be used when manufacturing such a pressure vessel?
If your pressure vessel is to be contructed in accordance to ASME VIII-1, JIS SS400 may not be used unless approved by the ASME Boiler & Pressure Vessel Committee. Refer to UG-4(d) of ASME VIII-1 and Appendix 5 of ASME Section II, Part D.

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