Aogami: Aogami or blue paper steel is basically shirogami steel with chrome and tungsten added to the steel. This is a very popular steel used in forging high end Japanese kitchen knives.
- Blue Super - Aogami super is made by adding molybdenum and vanadium to the Aogami steel. Has the longest edge life of the blue steels and is a favorite among the craftsmen who make our knives. Typically it is hardened to 63-64HRC.