Welding cryogenic process lines
Posted: Tue Feb 13, 2018 8:05 am
Does anyone have any experience welding on stainless lines that will be exposed to temperatures as low as -60F?
I'm tasked with welding connections on a heat transfer fluid loop that will be circulating a synthetic fluid that will be cooled to -60f then heated to 250f. I was just planning on carefully tig welding everything with 316 alloy rods and using 316 pipe and fittings. I know factoring for expansion in the piping will be important, but my main concern is stress cracks in the welds themselves.
This cold stuff is a new area for me as well as our plant. I figure we'll experience quite a bit of growing pains figuring out the world of running reactions well below freezing.
Thanks,
Chris
I'm tasked with welding connections on a heat transfer fluid loop that will be circulating a synthetic fluid that will be cooled to -60f then heated to 250f. I was just planning on carefully tig welding everything with 316 alloy rods and using 316 pipe and fittings. I know factoring for expansion in the piping will be important, but my main concern is stress cracks in the welds themselves.
This cold stuff is a new area for me as well as our plant. I figure we'll experience quite a bit of growing pains figuring out the world of running reactions well below freezing.
Thanks,
Chris