Answer:

Open the flange material dialog again, and press the help button. From this find that this material information was recorded in AutoPIPE's asme2010.mdb, search AutoPIPE help: Help > Contents> Search Tab> enter "asme2010.mdb"" (include the quotes), press List Topics button, double click on "Flange Check Material Library" from the list provided, and locate the reverence used for this database.

With this knowledge, you can open the reference and review the details of the information used in AutoPIPE's database. Please understand that questions related to ASME table information should be directed towards ASME for clarification.