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Samurai sword - Katana

Traditional Japanese artwork

Klein Klein

on 1 November 2012

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Transcript of Samurai sword - Katana

Samurai sword is probably the sharpest sword in the world Samurai Peasants Merchants (cc) image by rocketboom on Flickr Craftsmen Tamahagane <About "Katana">

Kei Eguchi 10902544 Tamahagane Iron ore that is used to make "Katana" is called "Tamahagane". It is produced from iron sand "Satetu".

Disposable clay vessel called "Tatara" is filled with soft pine charcoal and set alight. After temperature becomes appropriate, "Satetu" is added. Charcoal and "Satetu" are added in turns to make layers. Smelting process takes 3 days.

After smelting ends "Tatara" is broken to remove iron bloom called "Kera". Out of 2.5t of "Kera" less than 1t of "Tamahagane" can be produced.
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