RE:Btrueblood, from your link, Copper and copper alloys retain a high degree of ductility and toughness at subzero temperatures. In fact, copper alloys become stronger and more ductile as the temperature goes down, retaining excellent impact resistance to 20 K (-253 C or -424 F).
So does that...
At what low temperature will it crack? I am trying to certify an oxygen pipeline. I have a low temp protection set to cut of the oxygen flow at -20f. The pipe is copper so I am wondering if -20f is suitable?
