T10 Clay Tempered Katana with Real Hamon in Black Saya - Full Tang Samurai Sword with Copper Tsuba

This T10 carbon steel katana features a clay tempered blade measuring 28.74 inches, heat-treated to 58 HRC. The clay tempering process creates a distinctive real hamon line with an irregular, natural wave pattern running along the edge - visible as a contrast between the hardened cutting edge and the softer spine. The steel holds a refined, hand-finished edge with a clean chrome-toned polish across the flat.

The 10.23-inch handle is built on a full tang core and wrapped in authentic white ray skin (samegawa), then bound tightly with black cotton cord in a traditional diamond-pattern ito wrap. The 10mm cotton cord offers a firm, non-slip grip with a comfortable feel in hand. This construction is consistent with what collectors expect from a well-made Black Katana.

At the junction of blade and handle sits a copper tsuba with a darkened patina finish. The guard features an openwork design with flowing motifs, and the fuchi and kashira fittings carry matching dark tones that unify the overall aesthetic. A small gold accent is visible at the habaki area, adding a subtle contrast.

The black hardwood saya is coated in piano lacquer, giving it a deep, glossy surface. Three mitsudomoe crests are inlaid along the scabbard body, a traditional Japanese tomoe motif. Black sageo cord is tied in an elaborate knot at the kurikata, completing the classic presentation. This style of lacquered saya is a hallmark of the Carbon Steel Samurai Sword collection.

With an overall length of 41 inches and a weight of 4.4 lbs, this katana has a solid, balanced presence. The full tang blade, copper fittings, genuine samegawa, and lacquered hardwood saya combine into a cohesive collectible piece rooted in traditional Japanese sword design.