T10 Clay Tempered Japanese Katana with Real Hamon - Red Lacquer Saya, Copper Tsuba, Full Tang

This hand forged Japanese katana begins with T10 carbon steel, shaped through traditional clay tempering to produce a visible real hamon - the natural temper line that marks the boundary between the hardened edge and the resilient spine. The result is a blade with both structural integrity and the kind of organic beauty that only differential hardening can achieve.

Every detail of this katana reflects deliberate craftsmanship. The copper tsuba anchors the design with a warm metallic tone, complemented by matching copper fittings that run through the habaki and kashira. The handle is wrapped in genuine black ray skin (samegawa) beneath a tightly wound black cord (ito), providing the traditional texture and grip geometry found in authentic Japanese swords.

The red lacquer saya commands attention. Bold and richly finished, it protects the full-length blade while serving as a striking visual counterpoint to the dark tones of the handle and fittings. At 40.5 inches overall and 3.2 pounds, this katana carries the proportions and weight of a traditionally sized piece, balanced for display and appreciation.

T10 carbon steel is prized among collectors for its high carbon content and added tungsten, which contribute to excellent edge definition and long-term durability. Combined with clay tempering, this katana represents a level of material quality and forging technique that distinguishes it from mass-produced alternatives. Explore more in our T10 katana collection or browse real hamon katanas for similar pieces.

Whether displayed on a wall mount, showcased in a curio cabinet, or added to a growing sword collection, this red saya katana brings together premium materials, traditional forging methods, and a design palette that balances boldness with refinement. A meaningful addition for anyone who appreciates the art of Japanese blade-making.