128-12 hitasura hamon

This is a 128-12 with hitasura hamon created with local clay, local river iron and carbonized oak bark for the hardening coating plus other secret ingredients. Steel is AISI 1075, this blade is an art blade but still a very functional piece. This was “interesting” to harden because the extra carbon in the clay came from a local oak that had suffered a fire and the stump was in the stream bed where the clay and the river iron were gathered. It’s available for sale with or without scales, price on request. Please leave a comment with your contact information.

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2 thoughts on “128-12 hitasura hamon

  1. I wanted to ask you about your mix of clay. What purpose does the iron in the mix serve? I know in the Soshu school they used it to make ashi appear more faint, but not sure what it does in the mix that you use. Beautiful work-what does something like this run, by the way? Also, what does the charcoal do in the mix-supposedly in the books I read it helps the smith “adjust heating and cooling”? Not sure what that means exactly. I am going to try my hand (and luck!) at clay hardening some 1075 tanto blades, so any info is helpful! Thanks-A beauty you made there-any trouble with it curving in the quench. What did you use for quenchant?

    • I used a *lot* of river iron and got it to bond to the blade,.. It was almost like firing a ceramic onto the blade,.. Basically you are bonding ceramic to a blade then blowing it off the surface when you quench—well some of it anyway. If you think about it those terms it is easier to come to grips with what is happening. It’s an insulating layer and (said really quietly,.. maybe a colorant). It’s hard to explain succinctly. Quenchant was 140 degree water with no additives.It did not curve too much in the quench. Polishing it turned out to be a time consuming affair.

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