Pipe stress analysis on cryogenic application

[VL0]

Hello,

In the industry, pipe stress analysis on cryogenic application is not always performed for small diameter of pipes. (below 1 1/2")(instrument pipes). Is there a technical reason for that?

Regards,
VL

 

[EdStainless]

Small diameter piping is very flexible so unless it is a very unusual case (such as a short length between two large vessels) there is little chance for any significant stresses to be developed.

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P.E. Metallurgy, consulting work welcomed

 

[btrueblood]

Another "unusual case" to consider is if there is a material difference involve, i.e. a joint between materials with grossly different thermal expansion coefficients.

 

[VL0]

Well understood. Thank you for your replies.