TVP,
Thanks for your response. With some additional reserarch we found that Armco was bought by AK Steel and that AK Steel licenses Electralloy to produce their Nitronic materials here in the US. I am unclear if Electralloy's Nitronic 40 is in anyway superior (or even different) from steel...
My customer wants to minimize magnetic permeability for a small diameter shaft. He has chosen Nitronic 40 and is getting good results. Apparently, Nitronic 40 is a trademarked material of AK Steel. The "generic" equivlaent of Nitronic 40 is 21-6-9. I would gain some supply flexibility if I...