The "exotic" metals, along with several others, mentioned by 2-p are relatively common alloying elements in modern steels, especially the high strength types used in aerospace applications and in tooling. Nickel steel was one of the early major advances.

I don't know if 2-p worked directly with any of the cast you mentioned, but he worked in a facility that did have contact with such folks.

Last edited by Rocketman; 01/04/08 08:00 AM.