1045 Carbon Steel Full Tang Katana with Blue Marble Lacquer Saya and Floral Iron Tsuba

The blade of this katana is forged from 1045 carbon steel in a full tang configuration, heat-treated to 58 HRC hardness. The 28.74-inch nagasa features a chrome-polished finish that catches light cleanly along its length, with a hand-finished edge running the full curvature. Spring steel construction gives the blade a reliable balance of rigidity and resilience suited to a collectible piece of this caliber.

The tsuka measures 10.23 inches and is built over a hardwood core wrapped in PU black samegawa with white rayskin underlays visible between the diamond wrapping nodes. Black cord ito is tightly wound in a traditional crosshatch pattern, providing both visual texture and a firm, ergonomic grip. Dual silver menuki sit beneath the cord wrapping, adding subtle detail to the handle profile.

At the junction of blade and handle sits a round iron tsuba cast with an intricate floral relief - peony blossoms and foliage rendered in dimensional detail across a dark ground. A gold-tone real copper habaki completes the transition, and the overall guard assembly reflects the traditional Samurai appreciation for natural motifs in functional metalwork. Explore more styles in our Real Katana collection.

The saya is the visual centerpiece of this katana. Crafted from hardwood and finished in piano lacquer, it presents a rich blue marble-style pattern - clusters of lighter blue tones scattered across a deeper indigo ground, evoking cherry blossom petals or stone aggregate. Dark green sageo cord is tied in a traditional knot around the kurikata, contrasting beautifully against the blue surface. The koiguchi and kojiri fittings are finished in dark tones that frame the pattern cleanly. Browse our full Blue Katana selection for more blue-themed designs.

With an overall length of 41 inches and a total weight of 4.4 lbs, this katana carries real presence on a wall mount or sword stand. The combination of 1045 carbon steel construction, floral iron tsuba, and that distinctive blue marble saya creates a piece that stands apart from standard replicas - a refined addition to any Japanese sword collection.