I am having difficulty finding in Section VIII requirements for austinitic SS base metal when the minimum design metal temperature is below -20F. I understand that these materials don't undergo the same ductile-brittle transformation as those materials listed in UCS-66, so the requirements may differ. I also understand that Section IX designates charpy testing requirements for low temperature weld procedures that cover the filler metal and HAZ.
I don't find requirements or exemptions for these base metals in general, though. What have I overlooked?
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