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Call for Charpy toughness samples

Discussion in 'Shop Talk - BladeSmith Questions and Answers' started by Larrin, Jan 26, 2018.

  1. Salival

    Salival

    65
    Apr 9, 2014
    The Zwear and Ztuff blades that I have/had are MBB.

    Tho, I'm selling few of my Busse and MBB and buy more from Giedy :)
     
    hugofeynman likes this.
  2. Larrin

    Larrin Gold Member Gold Member

    Jan 17, 2004
    3V was patented by William Stasko and Kenneth Pinnow and both are retired.
     
    nsm, DeadboxHero and hugofeynman like this.
  3. Alpha Knife Supply

    Alpha Knife Supply Always Innovating Dealer / Materials Provider

    Oct 14, 1998
    Z-Tuff is from the United States. Read post #937.

    Chuck
     
    hugofeynman likes this.
  4. hugofeynman

    hugofeynman

    539
    Jan 18, 2011
    Exactly as I thought. I was answering to the gentleman that told Zapp is a German company, wish I didn’t know until now. Even if it’s a German company, Ztuff is made in the US.
     
  5. hugofeynman

    hugofeynman

    539
    Jan 18, 2011
    I’ve moved away from buying more Busses (never tried MBB) and now I stick with Adam Kornalski for big monsters (check his IG, Kornalskiknives. The biggest knives he ever made are all mine, mostly in K600, Vanadis 4 extra and Caldie steel. He also made big knives for others, but mines are the biggest:D), as with Giedymin (have to try that 6150), Dulo Knives (some big monsters also, in Ultrafort, A8mod and H11 ESR) and The Master Fredrik Haakonsen, one of the very few makers that can control all the variables (and there are so many! See Larrins publications!) in the knifemaking process, the kind of maker I wouldn’t hesitate to choose if I could only have one knife to the rest of my life.
     
  6. Salival

    Salival

    65
    Apr 9, 2014
    I think this "love" is a moving creature.. I like KNIVES, and many times, luckly, I'm moving from one maker to an another, finding, testing, liking new blades and steels.
    Everything is getting better, especially on the material part... This thread is a concrete proof of what's happening, of how our curiosity makes us evolve.
    I'm not saying that the new makers are better than the old, but new design and the new science makes products perform in a better way, (not everytime tho).
    Giedy today is making blades that gives much satisfaction.. My last chopper is a cute .332 (8,5mm) slab of 6150, 14 inches baldes that weights 3,7lbs...untill I have stamina, it's such an annihilator.
    I will for sure try more stuff from all those good makers out there in the future!
     
    hugofeynman likes this.
  7. hugofeynman

    hugofeynman

    539
    Jan 18, 2011
    .
     
    Last edited: May 24, 2019
  8. Willie71

    Willie71 Warren J. Krywko. Part Time Knifemaker Knifemaker / Craftsman / Service Provider

    Feb 23, 2013

    The metallurgical knowledge gleaned and shared over the 6 years I’ve been making knives has been impressive. When I started, going above Rc60 was seen as sacrelige, by most people, except in kitchen knives. The steel selections, and heat treat info has allowed for some pretty extreme geometry that now survives.
     
  9. nsm

    nsm Niagara Specialty Metals Platinum Member Dealer / Materials Provider

    146
    Jun 15, 2009
    CD#1 will be available for sale through our site and SB Specialty Metals by late July if anyone is interested.
     
  10. rodriguez7

    rodriguez7 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Feb 1, 2009
    Will this be available in sheet? Or will you cut it down for flat strips? I’m anxious to try it. Thanks!
     
    nsm likes this.
  11. Willie71

    Willie71 Warren J. Krywko. Part Time Knifemaker Knifemaker / Craftsman / Service Provider

    Feb 23, 2013
    Am I correct that CD#1 is basically the same as z-tuff?
     
    nsm likes this.
  12. rodriguez7

    rodriguez7 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Feb 1, 2009
    According to the composition, the only difference is the addition of silicon, 1 percent and a bump in chromium. So it might have a little more toughness and corrosion resistance.
     
  13. Willie71

    Willie71 Warren J. Krywko. Part Time Knifemaker Knifemaker / Craftsman / Service Provider

    Feb 23, 2013
    The silicon really helps toughness too. We need to test this steel!

    CPM cu-wear lists the silicon, where z-wear doesn’t, but that is speculated to just be the published data. I’m under the impression the crucible makes z-wear for zapp, just like they make z-tuff.
     
    ShannonSteelLabs and hugofeynman like this.
  14. Larrin

    Larrin Gold Member Gold Member

    Jan 17, 2004
    They probably have the same amount of silicon. I don’t understand why the chromium is different though.
     
    Willie71 likes this.
  15. nsm

    nsm Niagara Specialty Metals Platinum Member Dealer / Materials Provider

    146
    Jun 15, 2009
    We will make this available to finish .093", .125", .156", .187" and .250" by 36" long. We'll have pricing up on our site in June and I expect sheets will be in stock the week of July 20th.
     
  16. rodriguez7

    rodriguez7 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Feb 1, 2009
    Sounds good, thanks.
     
    hugofeynman and nsm like this.
  17. Willie71

    Willie71 Warren J. Krywko. Part Time Knifemaker Knifemaker / Craftsman / Service Provider

    Feb 23, 2013
    440b, 440c, A8mod, S90v, have been going through various heat treats this week.

    Two sources of 52100 are being annealed or normalized/cycled to get the additional data Larrin wants.

    1084 is ready for heat treat.

    I’m planning out the 1v, D2, S7, and Nitro V heat treats.

    I’ve got z-wear which I will heat-treat at 1975f, and temper in increments from 200f to 1000f to see where embrittlement happens.

    And, rebuilding the cylinder head on my car, and restoring a vintage Gibson acoustic guitar that was neglected to the point it was no longer playable. Oh, and rebuilding the transmission on my garden tractor. :confused:
     
    Last edited: May 22, 2019
  18. rodriguez7

    rodriguez7 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Feb 1, 2009
    Hell ya! And I thought I was a busy guy!
     
    Larrin and Willie71 like this.
  19. rodriguez7

    rodriguez7 KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Feb 1, 2009
     
  20. Willie71

    Willie71 Warren J. Krywko. Part Time Knifemaker Knifemaker / Craftsman / Service Provider

    Feb 23, 2013
    I try to have multiple steels ready for the same time, if they use the same temps. Otherwise it would take forever to get a range done. I did steels at 1975f last night, but paused the ramp at 1700f to normalize the 52100 and 1084. Today, I paused at 1450f to cycle x2, while ramping up to 1850f, and then up to 1900f. Tomorrow I have steels at 1950f, but a few at 1725-1750f. I’ll make a plan.
     
    daizee, Larrin, rodriguez7 and 2 others like this.

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