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CPM154CM vs CPMS30V

Discussion in 'General Knife Discussion' started by gull wing, Apr 20, 2009.

  1. gull wing

    gull wing Basic Member Basic Member

    May 4, 2002
    What are there good sides and how do they compare?
    *take a good edge
    *ease of sharpening
    *edge holding

    I like regular 154CM for the great edge it takes and it's ease of sharpening.
    I like S30V because it holds an edge well, edge is not as great as 154CM.
     
  2. Lycosa

    Lycosa

    Aug 24, 2007
    Great question, gull wing. I can't wait to hear the responses.
     
  3. Josh K

    Josh K

    Sep 29, 2008
    I prefer CPMS30V because it's relatively easy to sharpen and holds an edge better then CPM154 in my experience. It's on par with the stainlessness as well.
     
  4. J.Mattson

    J.Mattson

    Sep 10, 2007
    Are production knives with cmp154cm very common?
     
  5. tdrussell

    tdrussell

    215
    Feb 25, 2009
    More and more so. Most production Benchmade knives are now 154CM. Well, a lot of the Blue class is anyway.
     
  6. Native Justice

    Native Justice

    549
    Oct 23, 2005
    Have had mostly BM made 154CM blades and have always been disappointed with their performance and edge retention. S30V (Spyderco, BM, Blade-Tech, Buck, etc.) has always done just the opposite and continues to blow me away with how extraordinary it is in a variety of knife styles.
     
  7. gull wing

    gull wing Basic Member Basic Member

    May 4, 2002
    So far, thanks Josh K.

    CPM154CM vs CPMS30V?
     
  8. ROBB

    ROBB

    Nov 14, 1999
    There is a difference between CPM 154 and CM 154. The CPM is a particle metal. As far as I know I can't think of any knife manufactors that are using CPM 154. There are many using CM 154.
     
  9. Josh K

    Josh K

    Sep 29, 2008
    There's 154CM and CPM154. Both on paper are the same metal, but Crucibles CPM process makes the grain size a lot smaller and the metal a lot more uniform.

    CPM154 is better then 154CM in my experience and opinion. Not by much, but it's noticeable when sharpening and getting that polished edge.
     
  10. Esav Benyamin

    Esav Benyamin MidniteSuperMod Staff Member Super Mod

    Apr 6, 2000
  11. tjsulli790

    tjsulli790

    Jan 13, 2009
    Yes 154CM is more popular than CPM154, but there are companies out there using CPM154. Buck has several knives in it, as well as Boker, A.G. Russel, Bark River, and Kershaw.

    The two steels have the same chemistry, just CPM154 is produced using a different process making it a better sorted finer grain steel.
     
  12. Masteroffajitas

    Masteroffajitas Banned BANNED

    Oct 7, 2008
    I like s30v becuase it's easier to sharpen, and it holds it's edge better.
     
  13. stabman

    stabman Gold Member Gold Member

    Sep 17, 2007
    154 sharpens easier.
    S30V doesn't need sharpening as often.
    154 MAY be more shock resistant.
    I like them both(they're my two favourite steels:thumbup:).
     
  14. J.Mattson

    J.Mattson

    Sep 10, 2007
    I’ve got a number of Benchmade knives in 154cm, but am hopping to try cmp154.
     
  15. 'songsrflipnswt

    'songsrflipnswt

    87
    May 23, 2008
    What is the meaning 'CPM' defined?
     
  16. tjsulli790

    tjsulli790

    Jan 13, 2009
    Crucible Particle Metallurgy. Click here if it intrigues you even more.
     
  17. Alberta Ed

    Alberta Ed

    Jun 29, 1999
    From their website, (http://www.crumetals.com/products/CPM/index.cfm), CPM high-performance tool and high-speed steels are premier products of Crucible Specialty Metals Division. The process of producing CPM tools involves gas atomization of pre-alloyed molten steel to form powder that is then isostatically compressed into 100% dense compacts. CPM steels have no alloy segregation and exhibit extremely uniform carbide distribution. Good stuff, IMHO; S30V is a fantastic knife steel.
     
  18. antonio_luiz

    antonio_luiz

    Jul 23, 2008
    Here we go again! As earlier posts show, people can have totally opposite experiences (and opinions) when talking about what is supposedly the same steel. Comparisons like this are not very meaningful because they ignore the variations between batches of steel billets, knife shape, edge profile and most importantly - heat treatment.

    Don't make your buying decisions solely on what steel is used - check with existing and past owners of the model you're interested in and get their opinions of how it performed overall.
     
  19. donny bee

    donny bee Banned BANNED

    342
    Dec 23, 2008
    I agree, the heat treatment is more important then which steel to use in many cases. For the money the native in s30v would be hard to beat
     

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