SAE Flanges & Fittings in ASME Vessels
SAE Flanges & Fittings in ASME Vessels
(OP)
We have been asked to quote several ASME Vessels that have both SAE Couplings and Anchor Style Flanges in them. My understanding is these are made from AISI 1020 material which isn't an ASME approved material for pressure vessels (from what I can tell anyway). How do other manufacturer's do this? Are they recertifying the material or getting custom flanges made out of SA materials?





RE: SAE Flanges & Fittings in ASME Vessels
What material is the tank?
What requirements (static? railroad? over the road? hazardous fluids? fatal fluids?)
What exposure to the public?
How many sites?
RE: SAE Flanges & Fittings in ASME Vessels
RE: SAE Flanges & Fittings in ASME Vessels
RE: SAE Flanges & Fittings in ASME Vessels
If you do not want to violate the Code get it machine from a/SA 105 materials.
RE: SAE Flanges & Fittings in ASME Vessels
You can obtain SAE flanges in ASME-permissible materials but ASME will require you to analyze them to use them in the vessel scope unless I'm mistaken, which I might be.
As to the anchor-style flanges, I had to look that one up- never heard of much less seen one. Would imagine they could be found forged out of A105 material if you look hard enough- somebody out there who needs a axial stop against some enormous force must be using them- we always get away with tabs plug-welded to the OD of the pipe for situations like that. If forged to near net shape can't be found, you can have them machined from bar if you do the right testing on the bar prior to machining.