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

Version 4.36
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Knife Steel Chart Mobile:

Mouse over element names to get quick help on its effects in the alloy.
Mouse over multi alloy graph bars to see exact values.
Keyboard Shortcuts - click to see the list.
Select steels from the Interactive Knife Steel Composition Chart.

Show The Following Elements

  • Build - Enter
  • Settings Dialog - Alt+G
  • Show/Hide Ref. Names - Alt+I
  • Select Input Box - Alt+]
  • Close Dialog - Esc, Space
    With Active Suggestion List:
  • Copy Current Suggestion To Input Box - Tab or Right
  • Select Next Suggestion - Down
  • Select Previous Suggestion - Up

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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)

Knife Steel Chart Mobile Support:

Help & support for the Knife Steel Chart for Android.
Help & support for the Knife Steel Chart for iOS.
Thanks, Credits And References