Aogami-Super (Hitachi Metals Ltd.) is one of the best Japanese carbon steels available. It has a higher amount of carbon, chromium, and tungsten than Blue Steel No. 1, and it also includes molybdenum. This steel is known for its sharp edge and great edge retention, meaning it stays sharp for a long time. It can achieve a high level of hardness without becoming brittle. Because of these qualities, many knife lovers consider Aogami Super to be one of the finest high carbon steels in the world.