Cast pressure vessel?
Cast pressure vessel?
(OP)
Just looking for some recommendations from anyone who has experience with casting pressure vessels. While we've worked with rolled material (A516 GR70) here, we're looking at doing some R&D with a cast vessel. We're currently researching various materials, but being able to narrow the scope would be helpful. Also, being able to glean insight from someone who has already traveled this path would be most appreciated.
Jeff Mirisola, CSWP
Director of Engineering
M9 Defense
My Blog





RE: Cast pressure vessel?
What comes to my mind are valve bodies which obviously can be supplied in cast form, and contain pressure. As long as the cast material is permitted in Section VIII, Div 1, UG-4, and UG-7, you can design and fabricate a cast pressure vessel.
RE: Cast pressure vessel?
RE: Cast pressure vessel?
Thanks for the info, it'll definitely help.
Jeff Mirisola, CSWP
Director of Engineering
M9 Defense
My Blog
RE: Cast pressure vessel?
Jeff Mirisola, CSWP
Director of Engineering
M9 Defense
My Blog
RE: Cast pressure vessel?
A105 is a forging. Did you check part UF of the code? SA 372 should be good for high pressure application.
RE: Cast pressure vessel?
Where did you read about that pressure limitation? I have the A216M spec and there is no mention of it. The design of the vessel will determine MAWP.
The most important limitation for this material is temperature, it is not recommended for prolonged use above 425 deg C.
RE: Cast pressure vessel?
Regards,
SNORGY.
RE: Cast pressure vessel?
I believe it was in an older thread here on eng-tips that gave me that bit of (incorrect?) info. I spent quite a bit of time yesterday searching for casting materials that would meet our needs. Of the 5 I found that met the ASME Boiler and Pressure Vessel code, 3 appear to be good for us. My biggest concern now is finding accurate material properties so we can properly test the design. The three are ASTM A487, A352 and A217. Matweb had some info, but I'm hoping to find corroborating data.
Jeff Mirisola, CSWP
Director of Engineering
M9 Defense
My Blog
RE: Cast pressure vessel?
Specific material properties will not be as useful to you from a design standpoint as allowable stress values. The allowable stress tables in ASME B&PV Code, Section II, Part D, were developed to establish minimum wall thickness.
RE: Cast pressure vessel?
Allowable stress was part of what I am looking for. Unfortunately, we don't currently have access to ASME B&PV Code, Section II, Part D. Yet another item to add to my 'to-do' list.
Jeff Mirisola, CSWP
Director of Engineering
M9 Defense
My Blog