SA 334 Gr3 Minimum Design Temperature

[KFmech]

What is the minimum design temperature for SA334 Grade 3 tubing in a heat exchanger. I have this tubing available and I am trying to determine if we can use it in a -75 degree F design temperature application.

 

[nickelkid]

B31.3-2006 allows a minimum of -150F. That is the code book at finger tips right now.

 

[metengr]

B31.3 is probably not applicable. Is the heat exchanger designed and fabricated under ASME Section VIII, Div 1????? Use the correct code of construction and review the specific material specification, please.