HAP40 Steel

HAP40 steel is a high-speed tool steel made by Hitachi Metals using powder metallurgy. With a rich chemical makeup and fine microstructure, HAP40 steel offers an excellent combination of hardness, toughness, and edge retention. A HAP40 knife is highly regarded for its superior cutting performance and lasting sharpness. Many experts consider HAP40 steel among the best options for Japanese knives.