PEHasan, you are correct.
gbratis,
Actually in B31.3 you will find that 5L is actually classified under SA-516-65, hence the X52 grade. Therefor you can go back to Section II part B of the ASME code to get your required stress value or you can pull it from the B31.3 table A.1. The stress...
Check with Flexitallic before you start cutting flanges off. Ask them about a cross over gasket. They may be able to supply you with a gasket that will seal an RTJ to a RF. Believe it or not they work. I used them on my gassification project and was very skeptical when the supplier came out...
I seem to remember last year I had the same issue. I think I called CodeCalc and they told me that their program at that release date would not calculate non-circular components yet but I think they told me that the next version would address this issue. I had to calculate the non-circular...
The "rule of thumb" in the refinery industry relies on the process engineer and the efficiency of the exchanger. If the corrosion rate is calculated and the exchanger has no other issues besides the wall loss you mentioned it would be a safe assumption to say that you are missing some key...
