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Katana T10 Clay Tempered 皆烧 Hitatsura Hamon Blade High Quality Battle Ready Sword

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Original price was: $365.00.Current price is: $315.00.

Overall Length	40.5 inches (103cm)
Blade Length	28 inches (71cm)
Handle Length	10.6 inches (27cm)
Blade Material	T10 Steel + Clay Tempered with Water Quenched
Blade Shape	Shinogui-Zukuri
Handle Material	Hardwood+Genuine Rayskin
Tsuba Material	Iron
Scabbard Material	Handwood
Sori(Curve)	1.9cm
Weight	3.3 lbs (1.5 kg)
Condition	Brand new, Includes certificate and sword bag
Dimensions	41 × 3.5 × 3.5 in

The sword is well assembled with saya and swod bag.
Box and stand are not included.
All of our sword will be professionally checked before shipping out, the sword will be well packaged by a foam box to protect from damage during the shipping process.

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【T10 Steel · Hitatsura Hamon Forging Process】

This Katana is crafted from T10 high-carbon steel using the traditional Hitatsura clay tempering method. Each piece is a hand-forged work of art, balancing visual beauty with functional performance.

1. Material Selection & Shaping

• Steel Performance: Made of T10 high-carbon steel with ~1.0% carbon content. After heat treatment, the cutting edge reaches HRC 60-62 for sharpness, while the spine remains at HRC 40-45 for flexibility, achieving the ideal balance of hardness and toughness.

• Forging Process: The steel is repeatedly forged to refine grain structure and remove impurities, gradually shaped into the sword form while retaining subtle hammer marks for a unique texture.

2. Clay Application (Key to Hamon Formation)

A special clay mixture (clay + refractory clay + carbon powder) is applied using the Hitatsura method:

• A thin layer (0.1-0.3mm) covers the entire cutting edge for fast cooling during quenching.

• A thick layer (2-5mm) is applied to the spine and tang to slow cooling.

• Uniform coating from the tsuba (guard) to the kissaki (tip) ensures a continuous hamon pattern.

3. Quenching & Tempering

• Heating & Quenching: The blade is evenly heated to the austenitizing temperature (780-830℃), then quenched vertically in water. The entire edge cools rapidly, forming a continuous Hitatsura hamon extending from guard to tip.

• Tempering: After quenching, the blade is tempered at 180-250℃ for 1-2 hours to relieve internal stress, prevent brittleness, and stabilize hardness and toughness.

4. Polishing & Hamon Revealing

• The blade is ground with multiple grits of whetstones to remove scale, then hand-polished using the Hadori method to enhance contrast, creating a bright “ji” (body) and dark “ha” (edge) that clearly showcases the continuous hamon pattern.

• Final edge finishing ensures both sharpness and durability.

5. Assembly & Quality Control

• Fitted with genuine rayskin handle wrap, brass tsuba, and bamboo mekugi (pins) for a traditional, authentic build.

• Every sword undergoes hardness testing, hamon inspection, and detail checks to meet our quality standards.