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Originally Posted by Jerry Hossom
The only thing I might disgree with Larrin on is the edge holding, but that's strictly based on the total carbides available. With about the same chrome and half the carbon of D2 it's not likely to be great at holding an edge. Then again, I've not used it by itself and might be surprised. Toughness is about half of edge holding in my experience.
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John Verhoven, metallurgist, says that AEB-L would be the best all-around steel for knifemakers. The reasons he gives for good edge retention are: 1. hardens to 63-64 Rc 2. very fine carbides that avoid carbide pull-out (which happens in coarse carbides) and add to wear resistance 3. The K2 carbide is formed, which gives better wear resitance to the K1 carbide which is formed in Mo steels such as 154-CM.
From this, and my own uses of it, it should give edge retention equal to or slightly better than 440C.