A question for those that know about steel. I have this old meatcleaver that somebody at work has mistreated horribly before abandoning it. I have now adopted it and was hoping I could use the steel to make some small knives from. I do not know what steel it is. It only says "stainless" in german. Can I heat-treat this in roughly the same way as I`d do with an old carbon steel file? Or is it better to simply regrind it without overheating and give the thing a second life?