I already searched through all my emails and can't find where I ordered this steel from or what kind it is.. How can I figure out what type of steel I am working with if it's been laying around for a few years? If I get it ready for HT and send it to someone is there any way they can tell what it is? The only marking on it was a "white letter -C-". Neither end had color on it, had a fairly clean milled surface, not rough or deeply pitted. Y any means. No rust on it. Fairly easy to drill through and grind. Any ideas? I ordered it at least 3-4 years ago. It was .125 stock.