HAP40 is a semi-stainless powdered steel and one of the hardest steels used for kitchen knives, often heat treated above ~66HRC. Sukenari knives are probably the most well-known manufacturer to use HAP40 the list is growing.
High-performance kitchen cutlery delivers its best results only when properly maintained. Check out our knife sharpening services for home cooks and professionals alike or our strops and stones section for all of your at home sharpening tools.
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