If replacing a 8" carbon steel hairpin exchanger shell (with inlet / outlet nozzles and flanges) with stainless steel. Will be reusing the outbound return and and tube bundle. What ASME data report should the fabricator use for this replacement shell? Would this be considered an alteration...
Not looking for overly detailed reply as I said, just looking for a general overview of the process for my general understanding in order to make the best engineer / contractor selection decision.
Need to replace the head on a vertical tank. Can anyone outline the proper cutting, weld bevel, welding process, and NDE steps required to replace a 2:1 elliptical head (.375” thick) on a 7/16” thick x 3’ dia x 8’ carbon steel (SA-285-C) vertical tank?
