CPM154CM vs CPMS30V

gull wing

gull wing

Joined
May 4, 2002
Messages
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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.
 
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.
 
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.
 
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.
 
ROBB said:
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.
Click to expand...

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.
 
ROBB said:
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.
Click to expand...

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.
 
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:).
 
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.
 
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.
 
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.
 
antonio_luiz said:
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.
Click to expand...
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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