Maximum Thickness Stainless Steel Cryogenic Service
Maximum Thickness Stainless Steel Cryogenic Service
(OP)
Hello,
I'm looking into a note I found from a pipe specification for cryogenic service, design temperature -325F to +150F: For A312 TP304, the maximum permissible thickness is 6 mm. Per my research in ASME B31.3, I cannot confirm this note. Another engineer in my department found literature in B31.3 relating to carbon steel having a maximum thickness of 0.5 inch for the same service type of service. I understand this relates to the brittleness of the steel at -325F, and resume the note for the stainless steel addresses the same issue.
Has anyone else came across this? Or can point to a standard that addresses this?
Thank you for your time
I'm looking into a note I found from a pipe specification for cryogenic service, design temperature -325F to +150F: For A312 TP304, the maximum permissible thickness is 6 mm. Per my research in ASME B31.3, I cannot confirm this note. Another engineer in my department found literature in B31.3 relating to carbon steel having a maximum thickness of 0.5 inch for the same service type of service. I understand this relates to the brittleness of the steel at -325F, and resume the note for the stainless steel addresses the same issue.
Has anyone else came across this? Or can point to a standard that addresses this?
Thank you for your time





RE: Maximum Thickness Stainless Steel Cryogenic Service
Piping Design Central
RE: Maximum Thickness Stainless Steel Cryogenic Service
That's an error on my part. The carbon steel 0.5" thickness is limited by -20f design temperature not the -325F service I described for the stainless. Thanks for catching that
RE: Maximum Thickness Stainless Steel Cryogenic Service
Piping Design Central
RE: Maximum Thickness Stainless Steel Cryogenic Service
you must get smarter than the software you're using.
RE: Maximum Thickness Stainless Steel Cryogenic Service
RE: Maximum Thickness Stainless Steel Cryogenic Service
RE: Maximum Thickness Stainless Steel Cryogenic Service
OGMetEngr, these pipes will see Ethane, Propane, and Butane to name a few; nothing above hydro carbon C5. Like you said, it comes down to the specific application at hand and not using a blanket term.
RE: Maximum Thickness Stainless Steel Cryogenic Service
you must get smarter than the software you're using.