View Poll Results: What is the rockwell hardness on a carbon steel razor

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  • 35 ~ 45

    0 0%

  • 45 ~ 55

    4 17.39%

  • 55 ~ 65

    18 78.26%

  • 65 ~ 75

    1 4.35%
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  1. 12-06-2006, 09:04 AM #1
    superfly
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    Id say pretty soft, 45-55. But maybe even lower...

    Nenad
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  2. 12-06-2006, 10:03 AM #2
    PapaBull
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    I know I sent in three razors for testing some time ago.

    1. an old Wade and Butcher
    2. an old Case razor
    3. a broken Puma razor

    I thought it would be interesting to get some analysis on the blades of the vintage Sheffields, Case, which I consider one of the best Americans, and Puma - premium quality Solingen stuff.

    I won't post the results yet but I'll send them to Bill via PM so he can add them to his testing list. This is an interesting poll.
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  3. 12-06-2006, 02:02 PM #3
    Mike Blue
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    I have a Rockwell machine in my shop. It's not milspec anymore, but will definitely give good results within a half point either side.

    I'd much rather have broken pieces or blade flakes to test. The diamond point has been the source of fractures on blades that were too brittle.
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  4. 12-06-2006, 02:05 PM #4
    C utz
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    Quote Originally Posted by Mike Blue View Post
    The diamond point has been the source of fractures on blades that were too brittle.
    Is it possible to test the tang/tail, or does the blade have to be tested? Is only the blade treated or the whole kit and kaboodle?

    C utz
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  5. 12-06-2006, 02:15 PM #5
    superfly
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    Well, sadly, you cannot test on the tang/shank. Due to the nature of the immersing the blanks into the cooling liquid, the tang is not effectively quenched...

    Nenad
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  6. 12-06-2006, 02:35 PM #6
    urleebird
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    Yesterday was the best day to find another something to do...
    Last edited by urleebird; 12-20-2006 at 11:54 PM.
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  7. 12-06-2006, 02:43 PM #7
    wvbias
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    Quote Originally Posted by urleebird View Post
    A very good point, Nenad. I'm wondering, though, if razors were all processed the same. If they were quenched quickly, there may not be that much difference in the numbers. Since it won't matter if these blades are broken, maybe Mike could test in both areas... blade and tang.

    All this reference material in one spot... how cool is that?

    Whoo hoo...

    Would it matter if the tang/shank was hardened? If not,
    I suppose a lot could depend on the person doing the
    work on that particular day. Just a thought.


    Terry
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  8. 12-06-2006, 07:22 PM #8
    superfly
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    Quote Originally Posted by urleebird View Post
    I'm wondering, though, if razors were all processed the same. If they were quenched quickly, there may not be that much difference in the numbers.
    On the DOVO video the guy is dipping the rack with the razors in oil. They are fixed to the rack in the tang area. Even if the dip was quick enough, I still suspect the rack will prevent the heat to dissipate fast enough from the tang, and will even hold some of the heat through the whole process... And if the razors are dipped one by one, the tang might get the dip after the edge is quenched completely (usually several times, both oil and water), so measuring hardness there would make little sense...

    Nenad
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  9. 12-06-2006, 02:15 PM #9
    urleebird
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    Yesterday was the best day to find another something to do...
    Last edited by urleebird; 12-20-2006 at 11:53 PM.
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