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HRc to HB

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  • HRc to HB

    What would be the formula used to convert Rockwell Hardness # 35 to HB?

  • #2
    Re: HRc to HB

    Between HRC 31 and 40 the formula for an average estimate is
    HB=8.570*HRC-27.6
    the formula changes as the rockwell scale rises, obviously because the brinell scale is linear, while the rockwell scale is exponential.

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    • #3
      Re: HRc to HB

      I beleive this should read HB=8.570*HRC + 27.6

      Since i'm not registered i cant post links.
      Google "HRC to HB kennametal". A pdf kennametal posted will be found that has the ranges and formulae.

      Also, google "HRC to HB ISO 18265" Vitkovice cylinders posted a conversion table taken from ISO 18265.

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      • #4
        Re: HB to HRC

        Hb to hrc convert formule 149hb

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        • #5
          Re: HB to HRC

          Originally posted by Unregistered View Post
          Hb to hrc convert formule 149hb
          Hrc = HB+27.6/8.570

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          • #6
            Re: HRc to HB

            Hrc=(hb-27,6)/8,570

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            • #7
              Re: HB to HRC

              Originally posted by Unregistered View Post
              Hb to hrc convert formule 149hb
              Hrc 12 to 20

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              • #8
                Re: HRc to HB

                Originally posted by Unregistered View Post
                Hrc=(hb-27,6)/8,570
                12-20 Hrc
                convert into HB

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                • #9
                  Re: HRc to HB

                  [QUOTE=Unregistered;40274]What would be the formula used to convert Rockwell Hardness # 35 to HB?

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                  • #10
                    Re: HRc to HB

                    10 hrc = ? Hb

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                    • #11
                      Re: HRc to HBW

                      What formula to be used to convert HBW to HRc

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                      • #12
                        Re: HRc to HBW

                        Originally posted by Jignesh View Post
                        What formula to be used to convert HBW to HRc
                        There is no formula, its read from a chart.

                        I do not know what HBW is but here is a good place to start:
                        http://en.wikipedia.org/wiki/Hardness_comparison

                        The symbol for Brinell is HB or BHN.

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                        • #13
                          Re: HRc to HB

                          Originally posted by Unregistered View Post
                          What would be the formula used to convert Rockwell Hardness # 65 to HB?

                          65 hrc to hb

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