ACUTO440 is used for Glestain Kitchen knives, and it has been developed by Aichi Steel Corp in 2000 to comply with the increasing demands for high quality stainless cutlery steel that satisfies both longer sharp edge holding ability and excellent corrosion resistance. It has higher Chromium than 440C for better corrosion resistance, and the Carbon content is set in between 440A and 440C, but by adding Molybdenum and Vanadium, it has a superior cutting performance than 440C.