thank you metengr.... Yeah that was mistake on my part.. it is NOT an austenitic steel.... I have to look for an austenitic steel (Am I right?). Thank you for your suggession.. How about ASTM A 351,352 487 or 516
Actually we do have the equipment(Pressure vessel made of SAE/AISI 4140 steel)...
Dear All,
We wish to use SAE 4140 steel for pressure vessel operating at -25 deg C. As i understand SAE/AISI 4140 is a low alloy austenitic steel. Can anyone tell me will SAE 4140 can withstand -25 degree C of temperature without any structural deformation?
Thanks and regards
Amer