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Heat Treating Filet Knife

Discussion in 'Heat Treating' started by Joelsund, Oct 10, 2020.

  1. FORGE

    FORGE Maker of the Year Best Knife

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    Dan here is typical example of what I am talking about. We used to make a lot of knives out of ATS 34 (20 years ago ) and could never figure out why they were corroding. We had the best furnaces and heat treat equipment at the IPSCO R & D Lab of any knife maker in the country.
    Some famous heat treater (on the internet)down south claimed that proper tempering of the blades should occur at 900 Deg F.

    Hitachi is the manufacture of ATS 34 so we wrote them a letter inquiring about the corrosion problem.



    So for all of you that think internet info is REAL ......go for it.
    John Noon likes this.
  2. John Noon

    John Noon Well-Known Member

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    wow 900F, only thing I have tempered at or above that temperature had around 18% tungsten or other odd mixes.

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