Deep Drawing Pressure Vessel - ASME Requirements

[IdanPV]

Hello all,

I am looking for any information regarding ASME requirements about deep drawing of stainless steel pressure vessel.
I will be thankful for any help.

 

[SnTMan]

Sounds to me like it would be exempt from (at least) Sec VIII, Div 1, based on diameter / volume. If not I'd think drawing would not be the preferred method of manufacture.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[EdStainless]

Look at the rules for high strain forming and required post-forming heat treatment.


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P.E. Metallurgy, consulting work welcomed

 

[SnTMan]

IdanPV, you really should state proposed Code of Construction for questions like this.

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[TGS4]

Are you talking about ASME Section VIII, Division 1, Appendix 44?

 

[IdanPV]

Hello all and thank you very much for your quick responses.

SnTMan - Diameter is 254mm and the length is 400mm, MAWP = 0.28MPa and U stamp is required.
EdStainless - Are you talking about UG-79 & UHA-44? If so, the design temperature for my case is below the limitations of Table UHA-44 (142°C). But, I do think that PFHT is required.
TGS4 - No, the design temp. is exceeding 44-2(d). So I don't think Appendix 44 is applicable for my case.

Thanks again

 

[SnTMan]

IdanPV, your dimensions would not seem to meet the definition of a deep draw.

You don't mention a specific alloy, but UHA-44 would not seem to require post form heat treat for most. Whether intermediate anneals would be required I can't guess. I bet Ed can though

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[IdanPV]

Thank you all,

Alloy is SA240-316L.

From what I understand, it should not be a problem to Stamp the vessel with the U-Stamp?
or am I missing something?

 

[SnTMan]

As long as it is designed, manufactured and inspected IAW, you can stamp it.

The problem with sloppy work is that the supply FAR EXCEEDS the demand