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Ed - Thanks for the info, I appreciate the reply. First - yes, we used machined holes or sockets, and the tubes are standard exchanger tubes, either seamed or seamless. Foil or groove - both is considered "pre-placed filler", correct? Temp is just the max - in case we want to braze Hastelloy...

I'm currently looking into a process improvement so we can increase throughput on one of our product lines. This is as close to an off-the-shelf item as we have, most everything is custom engineered. We're looking at potential increase in orders of these and I've been tasked with determining...

We have a decent size (120"OD x 240" W-W, 1.25" thk Shell) unit which is having a 3-piece jacket installed per Appendix 9 in 3 sections: Bottom head to 1 can, then 2 additional cans on the shell only. All 3 shell cans have 1 long seam in them. The head will be provided 100%RT with PDR. The...

I have also heard good things about the CASTI books.

Thanks Pradip, Your information has been helpful. Since welding 2205 to these requirements (Based in API Technical Bulletin 938-C) is new to us, we are having some issues. I will discuss your recommendations with the welders and see where that gets us. Thanks

In case you are wondering, the customer spec only allows 1.0 - 1.2 T qualified per PQR

weldtek, Thicknesses are: 3/16" 1/4" 5/16" 3/8" 3/32" root with 75 degree included angle

All, I am trying to get some weld procedures for 2205 qualified to Shell DEP 30.10.60.18, and it is not going so well. We have the following parameters: GTAW Process with 98% Argon/2% Nitrogen. We are keeping heat input below 1.5 kJ/mm with the following variables: Voltage - 14-15 Amperage -...

All, I am trying to get some weld procedures for 2205 qualified to Shell DEP 30.10.60.18, and it is not going so well. We have the following parameters: GTAW Process with 98% Argon/2% Nitrogen. We are keeping heat input below 1.5 kJ/mm with the following variables: Voltage - 14-15 Amperage...

fegenbush, I agree that the R-2 is cleaner, but more to the point, which jurisdiction does this fall under? NBIC, or ASME? -Willy

Got an ASME VIII D1/NBIC Question. So, my engineers forgot to send out updated mechanical calculations, or to update the hydro test pressure in the drawings. The equipment was fabricated per the new calcs (material thicknesses and such), but hydro tested to the old values, which was a much...