Does M2 steel rust?

      Yes, and very easily too. It’s not a type of stainless steel, not with its 4% chromium. You need at least 10% or 12% chromium to qualify.

      What that means is that you will need to oil your M2 steel knife regularly. Try not to get it wet, and dry it as quickly as you can when you do get it wet. This M2 simply rusts too easily.