T10 Carbon Steel Katana with Blue Lacquer Saya - Black Cord Handle, Gold-Brown Tsuba, Real Hamon

The blade on this katana is forged from T10 carbon steel and put through differential heat treatment to produce a genuine hamon - the wavy temper line visible along the edge that marks where hard and soft steel zones meet. The polished chrome-finish nagasa runs 40.5 inches overall, with a width of 1.26 inches and a spine thickness of 0.28 inches, giving it the proportions of a traditional tachi-length katana. Every unit in our Blue T10 Carbon Steel Katana collection carries this same differential-hardened construction.

The tsuka is wrapped in black ito cord over genuine white samegawa (ray skin), laid out in the classic diamond-pattern binding that keeps the grip firm under any handling. The full-tang blade extends the complete length of the handle core, locked in place by traditional mekugi pegs rather than adhesive. Black tsukamaki menuki accents are visible through the wrap at the grip midpoints.

The tsuba is one of the most visually striking elements of this build - a gold-brown ornate scroll guard with pierced openwork lattice at the center and raised relief carvings framing the perimeter. The warm gold-brown tone reads distinctly against the dark handle wrap and bright blade, creating a layered contrast that stands out from standard iron or plain brass guards.

The saya is shaped from hardwood and finished in deep blue natural lacquer, producing a smooth, high-gloss surface. The rich blue paired with the black sageo cord and gold-brown fittings gives the assembled piece a cohesive color story that works well on a display stand. Collectors looking for the full blue saya range can browse our Dark Blue Rayskin Scabbard Katana lineup for additional options.

Total assembled weight is 3.2 lb with a shipping weight of 3.4 lb. Packaging dimensions are 43.4 x 3.9 x 3.14 inches. This is a full-size koshirae-style katana suited for display, collection, or handling appreciation - sword stand not included.