iam42
I don't know what you're building or who speced out the material. Here, we try to to talk users out of the 203-E materials for several reasons. One is the lack of availability. The other is economics. I can't speak for the rest of the world, but for here on the Gulf Coast of the US, stainless steel is more economical to build with less bothers than a-203-e for general services. Maybe your process requires it, I don't know. But it is definately worth a look as an option. We used to see it often in copying or replacing existing vessel in gas industries such as demethanizers, and deethanizers where the gas flashes and gets cold. In these services t-304 ss is just plain easier here.