T10 Carbon Steel Katana with Black Raging Fire Blade and Blue Piano Lacquer Saya - Full Tang Samurai Sword

The blade is forged from T10 carbon steel, hardened to 58 HRC, and finished with a striking black coating that makes the raging fire hamon pattern stand out in bold contrast. The jagged, irregular temper line runs the full length of the 28.74-inch nagasa, creating a dramatic visual effect where the polished edge meets the darkened spine. This is a full tang construction, meaning the steel extends completely through the handle for structural integrity.

The tsuka measures 10.23 inches and is built over a hardwood core wrapped in PU black samegawa with white real rayskin visible beneath. Blue cotton cord is tightly wound in a traditional diamond pattern, and gold menuki accent pieces sit beneath the wrap. The blue ito provides a vivid contrast against the black samegawa and ties the handle visually to the saya.

At the junction of blade and handle sits a black alloy tsuba shaped like a sunflower, with open petals radiating outward and a hammered gold center plate. The detail work on this guard gives it real depth - the gold accents catch light against the dark petals and echo the warm tones found in the kurikata fitting on the saya. Collectors who appreciate Black Tsuba Japanese Samurai Swords will find this design particularly refined.

The saya is crafted from hardwood and coated in blue piano lacquer, producing a deep, glittering surface that resembles a dark night sky. A blue sageo cord is tied through a gold-rimmed kurikata, and the koiguchi features a clean transition from the sparkling blue body to the black mouth. At 30.7 inches, the saya fits the blade precisely. This piece fits well within the broader Blue Katana collection for those drawn to this color palette.

With a total length of 40.94 inches and a weight of 4.4 lbs, this katana has real presence on a wall mount or display stand. The coordinated blue-and-black color scheme with gold accents runs through every component, from sageo to tsuba to menuki, giving it a unified aesthetic that works as a standalone display piece or part of a larger collection.