A182 F22 MATERIAL
A182 F22 MATERIAL
(OP)
Is it possible to use this material to fabricate a pressure vessel to ASME VIII at a design temperature of -46degC?
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RE: A182 F22 MATERIAL
The low chrome materials are more often used at high design temperatures. If your -46 C is the design temperature, there are probably better materials to use, especially if you have an even lower MDMT.
If the -46 C is the MDMT, and you are tied to the F22 by other considerations, you will probably just have to impact test and hope for the best.
Regards,
Mike
RE: A182 F22 MATERIAL
Do you mean MDMT or design temperature?
I would be more concerned of the weld metal if you are going to use welded construction. We do plenty of F22 welding, but the majority impact requirement is 20 ft-lb @ -20 F. I am not sure that a welding electrode is available for your -46 C requirement.
RE: A182 F22 MATERIAL
Off the shelf SA 182 Grade F22, no. You would need to have fine grain practice mandated to stand a chance for this material at -46 deg C.
RE: A182 F22 MATERIAL