Hitachi ATS-55 Knife Steel
Composition Analysis Graph, Equivalents And Overview

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Knife Steel Chart Mobile:

Mouse over element names to get quick help on its effects in the alloy.
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Select steels from the Interactive Knife Steel Composition Chart.

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ATS-55(Hitachi) - Custom made alloy for Spyderco by Hitachi. Spyderco produced various models using ATS-55, but eventually moved on to Hitachi ATS-34 steel, Takefu VG-10 and better alloys. ANyway, on its own, especially back then, it was pretty much a premium steel, with performance being in AISI 440C stainless steel class.

Manufacturing Technology - Ingot

Country - Japan(JP)

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