Small &Thick Shell forming
Small &Thick Shell forming
(OP)
Dear All,
I'm designing a Stainless steel Small high pressure vessel (650 psig Pressure design at 250 oF), with conical shell :Top Dia.8in Id, Btm Dia.2in Id, H=20in , thk= 5/16 in, So We are not able to form this conical shell, my question:
what is the ASME Section VIII Div.1, requirement , if we use a machined or forged conical shell part?
Thanks.
Regards.
I'm designing a Stainless steel Small high pressure vessel (650 psig Pressure design at 250 oF), with conical shell :Top Dia.8in Id, Btm Dia.2in Id, H=20in , thk= 5/16 in, So We are not able to form this conical shell, my question:
what is the ASME Section VIII Div.1, requirement , if we use a machined or forged conical shell part?
Thanks.
Regards.





RE: Small &Thick Shell forming
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Small &Thick Shell forming
Forgings are not a problem, you they are not limited by size.
Can't you bump this in a break press in two pieces then perform two long-seams?
RE: Small &Thick Shell forming
RE: Small &Thick Shell forming
I checked in the beginning your suggestion, by welding two formed pieces ,but the calculated forming strain is = 13.644%,which excced 10%, and per UHA44, its require a heat treatment.
Thanks .
RE: Small &Thick Shell forming
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Small &Thick Shell forming
indeed when I took a deep look to UHA-44(a)(1)(b) & Table UHA-44, and regarding grade material & my temperature design, it doesn't take a heat treatment.
Regards.