AEB-L was originally developed by Uddeholm as the first patented stainless razor blade steel in 1928. Sandvik version is 13C26. These steels are formulated with just enough carbon for the steel to get very hard, but not make any chromium carbides. The extreme fine grain makes them easy to sharpen, have good edge holding and excellent edge stability. Also used by several makers of high-carbon, high-contrast damascus steel. Although AEB-L is not a powder metallurgy steel, it contains very tiny carbides, its average carbide size is six-tenths of one micron, powder metallurgy steels have a carbide size of 2-4 microns. This gives AEB-L excellent toughness, great ease of sharpening, ease in grinding and polishing, great wear resistance, and a very keen edge to a knife.
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