For Christmas I received a Roselli knife. It's the carpenter model with a Scandi grind. The paperwork that came with the knife says that the blade is made of ultra high carbon steel that has a hardness value of 65-67. I have never used a scandi ground blade before, but I really like it. While I have only used it for food prep, I will say that it has held its slicing edge beyond belief...it removes free standing hair without problem. At any rate I am curious about this steel and was wondering if anyone knew anything about it? Any info is appreciated.