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  1. Engparts

    Carburize depth/hardness

    What technique(s) can be used to control the near surface hardness depth to maintain sufficient hardness after material removal?
  2. Engparts

    Carburize depth/hardness

    I am working with some large thin walled rings. Material is AMS 6270 being carburized to meet effective case depth of .025-.035 before finish and .010-.025 after finish. Hardness is called as "case 15n 90 min" and "core RC 20-48" If case depth was .035 with hardness of 15N 91, then ground to...

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