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- Jul 17, 2004
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depends on what you are saying is incorrect. If it is that hardness generally equates to edge holding, that is arguable, and has been argued a fair bit. Phil Wilson has posted a few times saying that increased hardness gives him increased cutting life, so he runs his knives fairly hard. Nozh2002 showed very good extended performance from S60V which didn't get run past Rc56-57 (IIRC) because of brittleness issues.
Now, if it's that 420HC doesn't hold an edge well, again that is purely subjective. Why it doesn't hold an edge well - alloy content, carbide fraction, maximum attainable hardness, who knows.
I agree completely with your concept. In my experience with 420HC however, I find that the typical hard use outdoor chores that one would normally perform works with in reasonable expectations, IMO. Overall varied methods of different types of quench and heat treating would also improve performance along with hardness. It is a delicate balance. No question about it.
Please see the following link and scroll down the page to about half way. Specifically under Types of Blade Steels. You will see the 420HC steel specifications denoting the Bos heat-treat process and Rockwell Hardness of 58.
http://www.buckknives.com/index.cfm?event=about.feature
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