ASM Online Member Community

  • 1.  Gaseous Nitrocarburizing

    Chennai Chapter Admin
    Posted 09-01-2021 15:36
    I would like to know what all the process parameters that influence the case depth of Gaseous Nitro carburized layer.
    In order to get 20 microns case depth (white layer )what are the typical values of Temperature Time and kn value or nitriding potential to be maintained.
    Please share your experience.
    ASM Handbook 23A

  • 2.  RE: Gaseous Nitrocarburizing

    ASM Employee
    Posted 09-20-2021 14:04
    Perhaps @Jack Kalucki could help. He was the coauthor of this ASM HB article:


    K.-M. Winter, J. Kalucki, Gas Nitriding and Gas Nitrocarburizing of Steels, Steel Heat Treating Fundamentals and Processes, Vol 4A, ASM Handbook, Edited By Jon L. Dossett, George E. Totten, ASM International, 2013, p 647–679,


    Carrie Hawk
    ASM International
    Community Engagement Specialist


    ASM Handbook 23A

  • 3.  RE: Gaseous Nitrocarburizing

    Posted 09-21-2021 09:36
    It would be important to know what the alloy is.

    Ken Kirby
    Snap-on, Inc.
    Kenosha WI
    (262) 748-3836

    ASM Handbook 23A

  • 4.  RE: Gaseous Nitrocarburizing

    Chennai Chapter Admin
    Posted 09-21-2021 09:41
    low carbon steel  (1010-10180)
    medium carbon steel (1045-1050)
    Medium Carbon Alloy steel (4140)

    Ambattur Metal Treaters 
    CHENNAI 600098
    GST NO :33AADPK3898F1ZN

    Co-Chairman -6ThACHTSE 2020 Chennai
    Vice Chairman -ASM international Chennai chapter 
    1/A1 SIDCO Industrial Estate,
    Ambattur,Chennai -600098
    GST No:33AAGAA0488F1Z1 

    ASM Handbook 23A

  • 5.  RE: Gaseous Nitrocarburizing

    Posted 09-22-2021 14:04
    In the case of low carbon steels, why do you want nitriding? Do you have wear problems? You should go to nitrocarburizing

    Donato FIRRAO FASM
    Politecnico di Torino

    ASM Handbook 23A

  • 6.  RE: Gaseous Nitrocarburizing

    Chennai Chapter Admin
    Posted 09-22-2021 15:51
    Thanks for your respose.
    I was refering to Nitrocarburizing only.
    We all know that Nitriding is preferable for Cr and Al alloyed steels only.
    I would like to know the nitriding potential as applicable for nitrocarburizing of low,Medium,carbon and alloy steels.

    ASM Handbook 23A