Mustafa Umut Sarac Posted February 26 Report Posted February 26 Yesterday , I found at a kitchen knife forum about a hitachi steel which formulated by Mr.Iwasaki with formulation of tamahagane steel with use of Swedish Pig Iron. These hitachi steels are shirogami 1 and 2 ,Aogami 1 and 2 and Aogami Super. https://covingtonand...ory-of-a-few-steels/ This blog post expertly written and explains everything. Thank you very much, Mustafa Umut Sarac Istanbul 1 Quote
The Forest Ninja Posted February 26 Report Posted February 26 I got a Japanese book called "How to View the Blade" by Kosuke Iwasaki" that I need to get translated. Here's the book description after it was translated. Will take way more time to translate the book though. Kousuke Iwasaki (b. 1903, d. 1967) was more than just a maker of razors; he held a PhD in metallurgy from Tokyo University, he was apprenticed to swordsmiths and barbers, and his book "Regarding Blades," ｢刃物の見方｣ is still considered one of the leading works on Japanese smithing, metallurgy and Tamahagane ever written. He was born into a family of blademakers, but his father’s business was destroyed by the enormous influx of cheap, mass-produced yet still highquality German cutlery after the first world war, and he swore to establish Japanese blades as the best in the world as revenge for his father’s losses. This mission led him to studying the ancient secrets of the Japanese bladesmiths, as well as his lifelong research into Tamahagane and swordsmithing. He eventually transferred his focus to razor making, both of the traditional Japanese Kamisori as well as western-style straight razors. Sanjo's blacksmith has a microscope. Based on the conviction that knife making should be backed by science, the author, who has mastered swordsmithing and sword sharpening, teaches the actual relationship between tamahagane and other knife materials, blades and sharpening, and whetstones. A wide range of topics linking technology and metallurgical theory are explained in detail. Fantastic masterpiece reprint. Release date: May 2012 Author/Editor: Kosuke Iwasaki Publisher: Keiyusha Form of issue: Paperback Number of pages: 177p Quote
Mustafa Umut Sarac Posted February 26 Author Report Posted February 26 Just now, The Forest Ninja said: I got a Japanese book called "How to View the Blade Kosuke Iwasaki." I need to get it translated. Here's the book description after it was translated. Will take more time to translate. You dont need to translation. The translated script are everywhere on google search. I read its entrance today and it says americans uses V movement to polish their shaving blades but Japanese uses an 8 movement For everybodys sake I will add translation file below. FIND THE TRANSLATION FILE BELOW Just now, The Forest Ninja said: honing-razors-and-nihonkamisori.pdf Quote
The Forest Ninja Posted February 26 Report Posted February 26 Doubt You find that entire book translated. I do have that razor shaving pdf file though. 1 Quote
Mustafa Umut Sarac Posted February 26 Author Report Posted February 26 Just now, The Forest Ninja said: Doubt You find that entire book translated. I do have that razor shaving file though. Thank you very much , if you can scan or photograph the entire book with high resolution files and post here in parts with awaring of 3mb posting limit, I promise you I will translate with ocr and than ai for you. You do the scan , I do the translation and all people will able to read. I wait your decision. Thank you, Umut Quote
The Forest Ninja Posted February 26 Report Posted February 26 It twould better to create only 1 thread regarding steel so that all the information ends up together. Quote
Mustafa Umut Sarac Posted February 26 Author Report Posted February 26 Tamahagane Steel is a Hitachi Product. I found that Hitachi is the foremost advanced and best blade steel manufacturer. I translated - some words overlaps others but if you enlarge % 200 , you can decode- hitachi document of new steels and I have put better translation of the steel chart. YOU MUST read this blog , most advanced site I have ever found : https://covingtonand...ory-of-a-few-steels/ shirogami - aogami.pdf hitachimetalsproperties en.pdf 1 Quote
The Forest Ninja Posted February 26 Report Posted February 26 I have purchased a bar of Shirogami #1 (1000mm long X 40mm wide and 6mm thick). Quote
ROKUJURO Posted February 26 Report Posted February 26 In cutting tools, the fine "grain" structure is the key feature for cutting properties. With good work on the anvil and a fitting heat- treatment, you can improve a standard steel (provided it has enough carbon in it), while a perfect raw steel like SHIROGAMI will only perform well if treated competently. Overheating is 'deadly'. Quote
Mustafa Umut Sarac Posted February 27 Author Report Posted February 27 7 hours ago, The Forest Ninja said: I have purchased a bar of Shirogami #1 (1000mm long X 40mm wide and 6mm thick). Hello , who sells these steels ? Did you buy from Japan ? How much did you pay and what did you do with this bar ? Thank you. Quote
The Forest Ninja Posted February 27 Report Posted February 27 It wasn't cheap and I only used a bit to make a knife. Still got 2 feet left sealed and oiled away for a later project. Quote
Lewis B Posted February 27 Report Posted February 27 4 hours ago, Mustafa Umut Sarac said: Hello , who sells these steels ? Did you buy from Japan ? How much did you pay and what did you do with this bar ? Thank you. There is a Turkish kitchen knife maker called Mert Tansu in Australia who uses Hitachi steels (Shirogami #1, Aogami #2 and Aogami Super). He might be willing to sell some depending how much you need or at least let you know where he buys it. He also makes his own bloomery steel (Wootz). Quote
Brian Posted February 27 Report Posted February 27 I think it's freely available, used on modern custom knives. Not really suitable for swords, but the piece I have came from Dictum in Germany. Even the Higo-No-Kami knives they sell cheap use some of it. Lots of places to buy it. https://www.dictum.com/en/steel-cc https://www.makermat...japanese-blade-steel https://www.makermat...lections/blade-steel 1 Quote
Lewis B Posted February 27 Report Posted February 27 10 minutes ago, Brian said: I think it's freely available, used on modern custom knives. Not really suitable for swords, but the piece I have came from Dictum in Germany. Even the Higo-No-Kami knives they sell cheap use some of it. Lots of places to buy it. https://www.dictum.com/en/steel-cc https://www.makermat...Japanese-blade-steel https://www.makermat...lections/blade-steel Thats interesting. I'm familiar with Dictum since I live in Germany but had no idea they stocked so many steel bar stock products (monosteel and prelaminated). They even have Tamahagane. Very cool 1 1 Quote
ROKUJURO Posted February 27 Report Posted February 27 Lewis, bloomery steel is not the same as Wootz: Mustafa, in addition to what Brian mentioned, there are more purchasing opportunities in Europe, e.g. https://www.gobec.de...w_item&itemindex=602 You could also use the German equivalent steel 1.1545 (= C 105) which has a similar composition but is much cheaper. All these high-carbon low alloy steels yield good properties only when forged and heat-treated competently. They don't like high or low temperatures when forged. 1 Quote
The Forest Ninja Posted February 27 Report Posted February 27 I got mine from here. But they're sold out now. TAKEFU SHIROGAMI #1 Quote
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