Blue Steel #1 is similar to Blue Steel No.2, but the additional Carbon and Tungsten / Wolfram result in even better edge retention and toughness. The steel is perhaps most commonly seen in high-grade Japanese traditional single-bevel edged knives.

Damascus is a laminated steel knife made of several layers of different steel materials. The center of the blade is made of hard steel for sharpness, and both sides are covered with multiple soft steel materials. The multiple steels are metallurgically joined, not by plating or glue. The more the blade is forged, the more complex the ripples become, and the more beautiful the unique grain pattern becomes.