How is the blue color on these blades actually produced?
Updated Mar 2026
The blue tone is not applied as a coating or finish. It develops through the metallurgical properties of high-manganese steel, which naturally produces cooler chromatic tones during the heat-treatment and quenching process. Some blades also undergo controlled oxidation after polishing, which draws out blue-gray surface hues by allowing a thin, stable oxide layer to form. Because the color is rooted in the steel's own chemistry and surface structure, it does not peel, chip, or rub away under normal handling and display conditions. This is fundamentally different from blued carbon steel finishes or painted decorative pieces, making it a more durable and collectible-appropriate result.