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Thread: Heat Treat Call Out

  1. #1
    Associate Engineer
    Join Date
    May 2018
    Posts
    7

    Heat Treat Call Out

    I have a heat treat call out for quench and temper heat treat that is stated "36 BIS 48 HRC". Does anyone know what BIS is supposed to mean?

  2. #2
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,075
    Is the engineering drawing German in origin?

    Bis = to, so translated:

    36 to 48 HRC

    or, it could mean "Best Induction Services" for induction hardening process.

    Ultimately, contact the engineering drawing creator.
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

  3. #3
    Associate Engineer
    Join Date
    May 2018
    Posts
    7
    Yes thank you the engineering drawing is German.

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