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. This katana can be taken apart fully at anytime for maintenance purposes, you can disassemble the sword by taking out the pegs from the handle. |
GENERAL DATA | |
OVERALL LENGTH:103 cm / 40.6 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 inch | BLADE HRC: 60 |
BLADE CRAFT | |
BLADE CRAFT: fully hand forged, hand polished (Shitaji togi + Shiage togi), clay hardened, water quenching | |
BLADE MATERIAL: T10 carbon steel | BO-HI: No |
NAKAGO: full tang | KISSAKI: medium tip (chukissaki) |
HAMON: real hamon, clay hardened line | POLISHING STYLE: Shiage togi + Hadori |
SHARPNESS: ★★★★★ | MIRROR EFFECT: ★★★★★ |
MOUNTINGS | |
TSUKA(HANDLE): hard wood core, hineri maki | MEKUGI: 2 bamboo pegs |
TSUKA-ITO: black genuine leather cord | SAMEGAWA: genuine red rayskin |
FUCHI / KASHIRA: gold silver plated brass, flower & mantis | MENUKI: gold plated brass, handcart flowers |
TSUBA(HAND GUARD): gold silver plated brass, dragon | SEPPA: high quality brass |
HABAKi: high quality brass engraved with mantis | SAGEO: black & dark brown synthetic silk specialized cord |
SAYA: glossy black lacquered wooden scabbard with amber buffalo horn Kurigata Koiguchi Koijiri | |
PACKAGE | |
1 sword with saya | 1 silk bag |
1 sword certificate | 1 1-layer black wooden stand |
T10 carbon steel |
The best quality of high carbon steel is T10, the carbon content was 1.03%, and the element contains a small amount of chromium, molybdenum, vanadium, after heat treatment can reach HRc 58-60 hardness. Toughness is very good, but it is not resistant to rust. It is applied to traditional european-style hunting knife, large cutting knife and military dao. |
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. |
Polishing Process The polishing process is divided into two stages:Shitaji togi andShiage togi. Shitaji togi is Foundation polishing,to correct any bends in the blade.Shiage togi is the stage that places the mirrorlike finish on a blade.This sword used Shiage togi,it is a elaborate process to the blade,it uses small grindstone to polish the blade by hand to make the blade mirrorlike,it is a time-consuming work,it can effectively increase the sword's monetary,historic,artistic,and functional value. |
The Modern Style Polishing (Hadori Style Polishing ) |
It is designed to highlight the aesthetics of the blade. In this style polishing, the hamon appears white against the black, shining steel and the mirror finished shinogi-ji. It is so aesthetic that it makes a blade perfect for display. |
The white pattern that looks like hamon is called "HADORI". It is not a true hamon, but it is designed by polisher along the hamon to exaggerate it. When you look at the blade under a proper light, you can see the true hamon under the hadori. |
With the modern polishing style, you can see the blades with aesthetically "made-up face". |
This polishing style was developed by a famous polisher in the early 20th century. |