Knife Steel Chart Mobile:
Mouse over element names to get quick help on its effects in the alloy.
For comparison with other alloys open steel composition graph builder & analyzer.
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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