P91 pipe welded to SA-516-70 ASME Pressure Vessel
P91 pipe welded to SA-516-70 ASME Pressure Vessel
(OP)
I'm having an issue installing a P91 pipe into a SA-516-70 Pressure vessel. It seems I have to transition from P91 to P22 and then to SA-516-70. With that said, I'm assuming I have to place a P22 sleeve around the P91 pipe prior to installing it into the tank. Is anyone familiar with this course of action? Is there another alternative?





RE: P91 pipe welded to SA-516-70 ASME Pressure Vessel
RE: P91 pipe welded to SA-516-70 ASME Pressure Vessel
Is the temperature >1100F, for which P91 piping material was developed or is it less than 750F, where ASME allows use of carbon steel materials such as SA 516-70?
What, exactly is the problem with a piping flange at this tank to piping joint..????
Something does not seem right.....
MJCronin
Sr. Process Engineer
RE: P91 pipe welded to SA-516-70 ASME Pressure Vessel
RE: P91 pipe welded to SA-516-70 ASME Pressure Vessel