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M390 super steel?

Discussion in 'General Knife Discussion' started by Flatlander1963, Jan 6, 2010.

  1. Flatlander1963

    Flatlander1963 Gold Member Gold Member

    Jan 28, 2008
    Seems Benchmade is coming out with a new framelock with M390 and they are calling it a new super steel.

    Anybody have any comments, experiance, or general knowledge of M390.

    I've never heard of it (par for the course:p) so interested to hear something about it.

    A google search didn't really turn up much.

    Thanks g
     
  2. LX_Emergency

    LX_Emergency

    Jun 28, 2007
    Oops, double post
     
  3. LX_Emergency

    LX_Emergency

    Jun 28, 2007
    I only saw it here so far. http://www.jatagan.eu/en/make-a-knife/m390-pm/

    If you look at the priced it's certainly priced like a supersteel. (you can switch currencies in the upper right)

    Google translate came up with this:

    Steel M390PM is stainless steel produced by powder metallurgy. Steel in the calcined state of well-machining, after heat treatment has excellent resistance to wear, easily polished. Steel is a highly homogeneous structure with very fine carbides, after proper heat treatment has excellent resistance to wear and tear - durability of the blade (greater than 19 573 / D2). Steel has high toughness (resistance to breakage).

    Composition: 1.90% C, 0.70% Si, 0.30% Mn, 20.0% Cr, 1.0% Mo, 4.0% V 0.6% V

    Heat treatment: austenitizace in a protective atmosphere from 1070 to 1150 ° C in a vacuum from 1120 to 1200 ° C. Hardness in turbidity after 60 -62 HRC during cooling in air.
    After hardening is recommended deep freeze

    Tempering: 150 to 400 ° C, the resulting hardness of 56-58 HRC

    Maximum wear resistance achieved after quenching from 1150 ° C and 2 + podmražení tempering cycles at 540 ° C, 58-62 HRC (Attention, slightly reducing the corrosion resistance).
     
  4. Flatlander1963

    Flatlander1963 Gold Member Gold Member

    Jan 28, 2008
    Well that does sound like a super steel. Fine carbine structure and 20% cromium. That may be more rust resistent than H1. Interesting!! Since Google translated, what was the country of origin btw?

    Thanks g
     
  5. LX_Emergency

    LX_Emergency

    Jun 28, 2007
    The steels country of origin is Austria, but the text came from the same webpage that I posted which is for a shop in the Czech Republic.
     
  6. presz

    presz Gold Member Gold Member

    Nov 12, 2005
  7. presz

    presz Gold Member Gold Member

    Nov 12, 2005
    Last edited: Jan 6, 2010
  8. Gator97

    Gator97 Gold Member Gold Member

    Apr 10, 2000
    Bohler-Uddeholm(result of merger of Austrian ohler and Swedish Uddeholm) makes quite a few PM tool steels, of many types, some are more wear resistant, others more shock resistant. M390 is also known as Isomatrix. I've seen few custom knives on the internet from Isomatrix.

    Here's a list of the Bohler-Uddeholm PM steels.
     
  9. The Mastiff

    The Mastiff

    Apr 21, 2006
    It's the same steel as Latrobe's Duratech 20CV. It's a good steel, tough ( for a high carbide fraction stainless steel) and wear resistant. I wouldn't put it in the S90V /ZDP 189 class for wear resistance, but it can be above S30V depending on the hardness it's run at.

    It's another steel that wouldn't work out real well if it didn't use PM technology.
     
  10. Gator97

    Gator97 Gold Member Gold Member

    Apr 10, 2000
    Hey, they're exactly the same huh? I've had them both in steel charts forever, never realizing that...Thanks for the tip ;)
     
  11. gine

    gine

    Sep 2, 2007
    H1 is rust proof steel.It can be left in salt water for years and not rust.It is the only rust proof steel on the market right now,and spyderco is the only production company that uses it at the moment.
     
  12. Gator97

    Gator97 Gold Member Gold Member

    Apr 10, 2000
    Duratech is Latrobe stuff, US company.
    Bohler used to Austrian, Uddeholm is Swedish, merged Bohler-Uddeholm HQ, as far as I understand is in Sweden. Although, I might be wrong.
     
  13. misterjuiceman

    misterjuiceman

    Sep 19, 2009
    my understanding was that in H1, carbon was replaced with nitrogen, but 20CV and M390 still have some carbon.
     
  14. THG

    THG

    May 18, 2008
    Most of it, but not all.
     
  15. flatgrinder

    flatgrinder

    Dec 20, 2005
    M390 is VERY good stuff. It is better than S30V, and is NOT the same as Duratech 20CV.

    Here's the chemistry:

    C: 1.90%
    Si: 0.70%
    Mn: 0.30%
    Cr: 20%
    Mo: 1.00%
    V: 4%
    W: 0.60%

    (I was looking into importing a few bars from Bohler when I heard that Crucible went bankrupt).

    Another benefit that isn't mentioned is that it is much cleaner than CPM 154. Bohler calls it "microclean" and it can be polished to a true mirror. It is made in Europe, the closest thing Bohler stocks in the US is called Elmax -both steels use Bohler's 3rd generation PM process. Good stuff! :thumbup:
     
  16. 2brothers

    2brothers

    Apr 22, 2007
    I just looked at the datasheets of both the Duratech 20CV and the Bohler M390.
    They read almost identical. :confused:
    Bohler M390. http://www.bucanada.ca/files/M390DE.pdf
    Duratech 20CV. http://www.matweb.com/search/datasheet.aspx?matguid=1d494a5db62a49ebbbc1b2fc52f184af&ckck=1

    M390 Duratech 20CV
    C: 1.90% C: 1.90%
    Si: 0.70% Si: 0.30%
    Mn: 0.30% Mn: 0.30%
    Cr: 20% Cr: 20%
    Mo: 1.00% Mo: 1.00%
    V: 4% V: 4%
    W: 0.60% W: 0.60%

    Silicon is the only difference I can find in the makeup of these two.
     
  17. goldie

    goldie

    Feb 18, 2000
    if you go to the Uddeholm website, you can see all the high tech steels & things they make & are involved with...
     
  18. Gator97

    Gator97 Gold Member Gold Member

    Apr 10, 2000
    There's quite a few of them :) Uddeholm canada, uddeholm australia and uddehol I dunno where, bucorp.com...
     
  19. slon

    slon

    74
    Aug 3, 1999
  20. PassinBy

    PassinBy

    522
    Jun 6, 2008
    haha, up coming new super steel :D
     

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