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hap40/sus410 steel knife
Knife Steel

Detailed HAP40/SUS410 Steel Review

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HAP40/SUS410 steel is laminate steel, whereby HAP40 steel, which is not stainless steel, is coated with SUS410 stainless steel. The stainless steel protects the blades made from rusting and corrosion. When you take a closer look at the blade, you will notice the unique layer construction above the cutting edge just after the blade grind. The blend of elements from HAP40 and SUS410 gives HAP40/SUS410 laminated tool steel an excellent balance of hardness, toughness, edge…

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Knife Steel

Is HAP40 steel good knife steel? Detailed HAP40 steel review

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HAP40 steel is high-speed tool steel produced by a Japanese company by the name Hitachi metals following the Powdered Metallurgy process. The mixture of components used to make HAP40 steel gives it a balance of hardness, toughness, and edge retention. HAP40 is not stainless steel because its chromium content does not meet the levels needed to make it stainless steel. You would expect it to rust easily, but the small amounts of chromium offer considerable…

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