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Praying Mantis and Oni Katana
Our swords made from Bainite. Bainite is a structure of high-carbon steel that combines great strength with excellent flexibility and shock absorption characteristics. It has been known as an exemplary Katana blade component for a number of years but its use has been restricted to a few top-class master smiths, due to the difficulties involved in performing the exacting heat treatment procedures necessary for the production of a Bainite blade body in combination with the very hard Martensite Yakiba (edge section) required for Katana blades.
Click on pictures for online ordering, measurements and description
blades typically edge 58~60 HRC, back 38~42 HRC
Hanwei's latest version of the Praying Mantis features a "straight" (Sugaha) hamon, as opposed to the "wave" (Notare) style used on earlier versions. This results from Hanwei's development work in producing a hard martensitic edge on Bainite blades. Traditional claying techniques produced unsatisfactory results and it was found that the best edge hardness was produced by microwave heating of the edge section (Yakiba) (this takes about four seconds), followed by immediate quenching. As the microwave technique can only be applied to an area that follows the line of the edge, a Sugaha hamon style results. While the technique is very modern, the hamon style is very traditional.
gray color of the blade surface is not oxidation, it is simply the coloration
of the Bainite phase of L6, which has an inherently "dark"
appearance. It could be polished, like the section behind the ridge line (shinogi-ji),
but we would lose the hamon (the differential hardness would still be there,
it just would not be visible). As the Bainite is used primarily to take
advantage of its "forgiveness" in cutting and appearance is
secondary, we figured that a visible hamon would be the preferred option.
The phone number is 888-660-9673
Hours of operation are Monday thru Friday 10-8, Saturday 10-6 EST.. Sunday 12-4.
The products sold at our site are NOT toys! Mantis Swords, its employees nor associated companies assumes no responsibility for injury, damage or loss incurred by use of any merchandise sold via this site. Products from this site will not be sold to individuals under the age of 18 without permission and consent of a parent or legal guardian. Compliance to local , state and federal laws and/or statutes is the responsibility of the purchaser. Purchase of merchandise from the Mantis Swords implies agreement and compliance to the above statements by purchaser. As with all weapons specs will vary slightly from piece to piece.
All pictures on this site have been provided by photographer Roger Mitchell.
All pictures and descriptions on all pages of this site are the property of Mantis Swords Inc., duplication without Mantis Swords written permission in strictly prohibited!