Hi Thomas
Thanks for your reply, however SA336 Gr F22 Cl 3 is also heat treated although there are options between Q&T and Norm&T, and the ultimate strength is slightly lower than SA508 Gr 22 Cl 3. Might it be worthwile to try this one for a code case? The component will need a small amount of...
Does anybody have an idea why SA336 GrF22 Cl3 is allowed for ASME III pressure vessels up to 700F, while SA508 Gr22 Cl3 is not permitted for same?
Mike N
(I have also posted this question on the Eng Codes and Standards - ASME Forum)