Question on material used in designing pressure vessels

[vagator]

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

 

[gr2vessels]

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

 

[doct9960]

vagator,

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.