Clay tempered 1095 high carbon steel blade Japanese samurai katana sharp sword
KATANA
Historically, katana (刀 or かたな) were one of the traditionally made Japanese swords (nihontō) that were used by the samurai of ancient and feudal Japan.The katana is characterized by its distinctive appearance: a curved, single-edged blade with a circular or squared guard and long grip to accommodate two hands.
Samurai katana as a weapon is famous for its beautiful shape. They are used as art collection and the symbol of samurai soul. Our sword allows you to make a collection or to send to friends as a present.
The blade of this sword is made of Damascus folded steel 百炼花纹钢. It is folded forged by 15 times, and 32768 layers of patterns(Jihada) are formed on the surface of the blade. It is also clay tempered. The high-performance blade has very good toughness and does not deform when bent at 90 degrees. The hardness is as high as 60. Cutting the wire does not hurt the blade. 
It can be used in battle or for display. We would highly recommend it as a gift. Anyone would be thrilled to receive a gorgeous sword as a gift! 
 
GENERAL DATA
OVERALL LENGTH: 103 cm / 40.5 inch
BLADE LENGTH: 70 cm / 27.6 inch
TSUKA LENGTH: 26 cm / 10.24 inch
BLADE WIDTH: 3.2 cm / 1.26 inch
BLADE THICKNESS: 0.7 cm / 0.28
BLADE CRAFT: fully hand forged, water quenching
BLADE MATERIAL: T10 steel, folded forged by 15 times, clay tempered, real hamon
BLADE SHAPE: Shinogidukuri
NAKAGO: full tang
KISSAKI: medium (chūkissaki)
BLADE HRC: 60 
 
DIMENSION
 
MOUNTINGS
TSUKA(HANDLE): hard wood core, Hineri maki
MEKUGI: 2 bamboo pegs
TSUKA-ITO: dark green synthetic silk wrapping cord
SAMEGAWA: white genuine rayskin
FUCHI / KASHIRA / MENUKI: alloy
TSUBA(HAND GUARD): alloy
HABAKi & SEPPA: brass
SAYA: glossy black lacquered scabbard wrapped by dark green specialized sageo
 
PACKAGE
1 sword with saya
(No display stand and other fittings along with)
 
FOLDED STEEL 百炼花纹钢
This means that the carbon steel is folded by 15 times to produce 32768 layers. The higher quantity of layers provides more unique and mystical hada patterns, which defines and displays the craftsman’s experience and knowledge of traditional metallurgy passed down from generation to generation. Only the utmost skilled bladesmiths (Toushyo) and polishers (Togi-shi) can bring out the beauty and life from the Shinsakuto live blade. During the forging process, all of the slags and impurities of the steel are burned off and folded forged to an uncompromised strength with an sharp cutting edge. The final carbon content is 1% and the hardness is an impressive HRC 60 on the Rockwell Scale. This high quality blade can easily cut through tatami straw mats or bamboo for Tameshigiri or Batto-do use.
 
CLAY TEMPERING
Before being quenched, a special clay mixture can be applied onto the blade to harden the edge and obtain different hardness on the blade. The clay mixture was a special recipe and considered a crucial trade secret, guarded protectively by sword making masters. It would contain such things as feathers, powdered bones, grass, etc. and would be applied to the edge of the blade before being quenched. During quenching, a chemical reaction between the clay mixture and the hot steel occurs during the sudden temperature drop and carbon is fed into the blade in high amounts, creating an extremely tough edge. A clay hardened blade can only be quenched in water, thus increasing the defect rate even more. 
Another way for clay tempering is to apply clay along the blade but let edge exposed. Thus, while quenching the blade into water,the uncovered edge will cool down suddenly, but the rest of blade will cool down slowly. Such differential temperature change results in the different hardness of the blade. So the edge is tough enough to cut, where the back of blade is soft /flexible enough to absorb the impact during cutting. Such quenching process usually will leave beautiful wavy tempered line on the blade, as known as "hamon" in Japanese swords term.

 

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