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Post by Dan Davis on Jul 15, 2008 12:12:24 GMT
EN45 will likely break; but the assumption that you can only get suga-ha is wrong. I get all manner of interesting hamon without using a coating.
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Post by Deleted on Jul 15, 2008 20:32:30 GMT
Thanks for all the info you've given us dan! +1 I know that EN45 is actually an oil quenching steel so quenching in water is risky I know that James Raw uses this for his water quenched blades so it is possible, but I don't know if I could pull it off. This might be a stupid question but is it possible to create a hamon with an oil quench?
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Post by Dan Davis on Jul 15, 2008 22:44:56 GMT
I use 1050 or 1065 almost exclusively for my monosteel blades that get a hamon and when I laminate steels or build from tamehagane I calculate for a total carbon of .60; this approximates the carbon content of most nihonto that have been tested over the years. EN45 is essentially the same as AISI 1050 except for the manganese content, which is far more rigidly controlled and fairly high. You can minimise most of the effects of the Mn in EN45 by normalising 3-5 times, and then you should be able to water quench it and produce a decent hamon fairly safely. Remember not to anneal the steel at all, or you have to start the normalisation cycles all over from 1 Most of the Hanwei Practical Series katana are in fact oil-quenched. You won't get a very bright hamon but you can do it.
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Post by Deleted on Jul 15, 2008 23:33:04 GMT
Thanks dan, I think you've just saved me a snapped blade
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