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Thread: Why Doesn't Spyderco Publish Rockwell Hardness?

  1. #41
    Spyderco Forum Registered User dialex's Avatar
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    Fankly, I'm glad that Spyderco doesn't explicitely give the Rc hardness.One can make an educated guess and of course, the one who is really interested in this matter can ask on the Forum(s) and get a good answer. But I'm glad that the Rc doesn't feature on the label. Most people tend to believe that bigger is better (and it's not, at least when it comes to hardness ).
    IMO adding a figure on the label would bias the customers towards the higher values and make them lose interest in other great blades which work optimally at lower Rc.
    The mind commands the body and it obeys. The mind orders itself and meets resistance.

  2. #42
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    Quote Originally Posted by Ankerson View Post
    I didn't have mine tested....
    my bad... it was poster bh49 yesterday morning in a reply to a thread asking if anybody knew the RC of the Forum Native.

  3. #43
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    Quote Originally Posted by Philo Beddoe View Post
    Blade Rockwell: 58-61HRC
    Seems to work..
    I'm curious to know what the hardness of the Domino blade is..
    58-61. If the machine has been recently calibrated, and the variance is +- 1, now we're at 57-62. That's a big range.

    We keep within 2 points, which has it's own challenges.

    I'll check my 110V Native.

    sal

  4. #44
    Spyderco Forum Registered User
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    My S110V Native averaged 63.0 on 3 tests (62.9 - 63.6 - 62.5).

    sal

  5. #45
    Spyderco Forum Registered User kbuzbee's Avatar
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    Quote Originally Posted by sal View Post
    My S110V Native averaged 63.0 on 3 tests (62.9 - 63.6 - 62.5).

    sal
    Awesome! What was mine, Sal?

    Ken
    玉鋼

  6. #46
    Spyderco Forum Registered User Blerv's Avatar
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    VERY Impressive
    Blake

    Listing of Blade-Length Laws by State/County (Not My Website)
    http://www.handgunlaw.us/documents/USKnife.pdf

  7. #47
    Spyderco Forum Registered User
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    oh sweet! thanks sal!

  8. #48
    Spyderco Forum Registered User Ankerson's Avatar
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    Quote Originally Posted by sal View Post
    My S110V Native averaged 63.0 on 3 tests (62.9 - 63.6 - 62.5).

    sal

    Very Nice.

  9. #49
    Spyderco Forum Registered User
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    Quote Originally Posted by kbuzbee View Post
    Awesome! What was mine, Sal?

    Ken
    I heard your knife was specially heat treated to 54 hrc

  10. #50
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    Quote Originally Posted by sal View Post
    My S110V Native averaged 63.0 on 3 tests (62.9 - 63.6 - 62.5).

    sal
    Sal,

    Thank you very much for this information.

    Ray

  11. #51
    Spyderco Forum Registered User JNewell's Avatar
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    Quote Originally Posted by sal View Post
    My S110V Native averaged 63.0 on 3 tests (62.9 - 63.6 - 62.5).

    sal
    Very nice!

  12. #52
    Spyderco Forum Registered User
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    That is an impressive result from my very limited understanding of heat treating on a commercial level on a steel like S110V where most expect a range closer to 60 - 61.
    Current : Para2's Brown, Blue & Orange, Etched Spin, CF Caly3 ZDP189, Gayle Bradley, UKPK Orange G10, Manix2 M4, Sage 1, Caly 3.5 in Super Blue, Urban Orange G10

  13. #53
    Spyderco Forum Registered User chuck_roxas45's Avatar
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    I wonder what hardness they aimed for...
    I always heard that you catch more flies with honey than with vinegar, but then you catch even more flies with poop



    http://sharpthings.net/chat

    http://www.spyderco.com/forums/showthread.php?t=45696

  14. #54
    Spyderco Forum Registered User
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    Quote Originally Posted by chuck_roxas45 View Post
    I wonder what hardness they aimed for...
    Probably between excellent and very excellent

  15. #55
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    Quote Originally Posted by chuck_roxas45 View Post
    I wonder what hardness they aimed for...
    Probably 62 or 63

  16. #56
    Spyderco Forum Registered User chuck_roxas45's Avatar
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    Quote Originally Posted by fanglekai View Post
    Probably 62 or 63
    That is pretty good much better than s110v at 58-59.
    I always heard that you catch more flies with honey than with vinegar, but then you catch even more flies with poop



    http://sharpthings.net/chat

    http://www.spyderco.com/forums/showthread.php?t=45696

  17. #57
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    nice thread , am very curious about the hardness of my quilibrium vg10 blade too

  18. #58
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    persistance equilibrium

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    fabulous woodcarving knive



    is it possible that the persitance blade is a bit harder then the equilibrium vg10 blade ?

  19. #59
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    Quote Originally Posted by Ferris Wheels View Post
    That is an impressive result from my very limited understanding of heat treating on a commercial level on a steel like S110V where most expect a range closer to 60 - 61.
    It isn't difficult to get a high hardness on a steel especially in production, just call up any professional heat treating company like Peter's, they can easily produce any hardness you want. However judging steel by hardness is like judging how someone can play basketball by height. It is a factor but can't be considered in exclusion.

    It is in fact usually more difficult for custom makers to do it more so than large scale production because of the cost of the equipment. This is why for a long time Phil Wilson for example had to run his S90V at what now would be considered almost defective hardness and if Spyderco promoted it quite a number of people would likely explode on it - yet for quite a long time Phil was limited to ~56 HRC on his S90V because he did not have a furnace to handle the high soak temperatures.

    Of course any production heat treating facility can handle HSS which demands even higher temperatures with no issues. But again, hardness without micro-structure is like someone tall without any athletic talent - not a good argument for picking them for basketball.

  20. #60
    Spyderco Forum Registered User hunterseeker5's Avatar
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    Quote Originally Posted by Cliff Stamp View Post
    It isn't difficult to get a high hardness on a steel especially in production, just call up any professional heat treating company like Peter's, they can easily produce any hardness you want. However judging steel by hardness is like judging how someone can play basketball by height. It is a factor but can't be considered in exclusion.

    It is in fact usually more difficult for custom makers to do it more so than large scale production because of the cost of the equipment. This is why for a long time Phil Wilson for example had to run his S90V at what now would be considered almost defective hardness and if Spyderco promoted it quite a number of people would likely explode on it - yet for quite a long time Phil was limited to ~56 HRC on his S90V because he did not have a furnace to handle the high soak temperatures.

    Of course any production heat treating facility can handle HSS which demands even higher temperatures with no issues. But again, hardness without micro-structure is like someone tall without any athletic talent - not a good argument for picking them for basketball.

    I'm surprised it took so long in this thread for this point to be really brought up.

    I also think this is why many makers/manufacturers publish RC numbers: they're excellent marketing tools, because people don't really understand.

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