T10 Carbon Steel Katana with Clay-Tempered Real Hamon in Dark Red Piano Lacquer Saya - Floral Copper Tsuba

This katana features a 28.3-inch nagasa forged from T10 carbon steel and clay tempered to achieve a natural hamon line along the edge. The differential hardening process brings the cutting edge to 60 HRC while keeping the spine resilient, creating that distinctive wavy temper line visible on the polished surface. For collectors exploring T10 Samurai Sword options, this piece represents a faithful approach to traditional Japanese blade-making techniques.

The 10.2-inch tsuka is built on a full tang core and wrapped tightly in black cotton cord using a traditional crisscross pattern. Beneath the wrap, PU red samegawa panels provide both texture and a vivid accent color that flashes through the black ito at each diamond-shaped gap, giving the handle its signature red-and-black look.

At the guard, a copper alloy tsuba carries an elaborate floral relief motif finished in antiqued bronze and gold tones. The design includes layered petals and leaves sculpted in high relief, framed by a geometric lattice band along the inner rim. A matching fuchi collar continues the bronze tone into the handle assembly.

The saya is crafted from hardwood and finished in piano lacquer that gives it a deep, translucent dark red tone with a mirror-like gloss. A black-and-red braided sageo cord wraps the kurikata and is tied in a decorative knot, echoing the handle's color theme. The overall effect is a cohesive dark red and black palette from tip to pommel.

At 40.5 inches in overall length with a blade width of 1.18 inches and a weight of 2.55 lbs, this Carbon Katana is built with proportions suited for both wall display and hands-on appreciation. Every fitting is assembled by hand, making each piece a unique collectible.