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Thread: CPM154CM vs CPMS30V

  1. #1
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    CPM154CM vs CPMS30V


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    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. #2
    Great question, gull wing. I can't wait to hear the responses.

  3. #3
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    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. #4
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    Are production knives with cmp154cm very common?

  5. #5
    Quote Originally Posted by J.Mattson View Post
    Are production knives with cmp154cm very common?
    More and more so. Most production Benchmade knives are now 154CM. Well, a lot of the Blue class is anyway.

  6. #6
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    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. #7
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    So far, thanks Josh K.

    CPM154CM vs CPMS30V?

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    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. #9
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    Quote Originally Posted by ROBB View Post
    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.
    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. #10
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    Emerson Knives uses 154 CM almost exclusively.
    Benchmade uses 154 CM among many other steels, including S30V.

  11. #11
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    Quote Originally Posted by ROBB View Post
    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.
    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.
    "Cutlery should be of the best steel obtainable. Knicks and dull edges are abominations, so use knives and hatchets for nothing but what they were made for, and whet them a little every day that they are in service."
    Horace Kephart

  12. #12
    I like s30v becuase it's easier to sharpen, and it holds it's edge better.

  13. #13
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    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).
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  14. #14
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    Quote Originally Posted by tdrussell View Post
    More and more so. Most production Benchmade knives are now 154CM. Well, a lot of the Blue class is anyway.
    I’ve got a number of Benchmade knives in 154cm, but am hopping to try cmp154.

  15. #15
    What is the meaning 'CPM' defined?

  16. #16
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    Quote Originally Posted by 'songsrflipnswt View Post
    What is the meaning 'CPM' defined?
    Crucible Particle Metallurgy. Click here if it intrigues you even more.
    "Cutlery should be of the best steel obtainable. Knicks and dull edges are abominations, so use knives and hatchets for nothing but what they were made for, and whet them a little every day that they are in service."
    Horace Kephart

  17. #17
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    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. #18
    CPM 154 is a chrome moly steel with 4% molybdenum....CPM S30V is a chrome vanadium steel with 4% vanadium...154 has no vanadium.

    Vanadium is supposed to help hold an edge longer.

  19. #19
    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.

  20. #20
    Quote Originally Posted by antonio_luiz View Post
    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.
    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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