CPM154 vs S30V

CPM-154 (BassPro 110) takes a finer edge and is easier to sharpen than S30V (BM Mini-Rukus). S30V may hold an edge a bit longer when cutting abrasive material. Both are great steels, very tough, and it would be difficult to tell them apart in daily use.
 
CPM 154 and 154CM are the same composition, one is produced through particle metallurgy. They are both made by Crucible.
 
I'd take S30V if you cut a lot of cardboard, CPM 154 should be a great all around steel.
 
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I've had much better edge holding from S30v myself and no problems sharpening. But maybe the CPM154 knife I got (only have one) didn't get a good heat treat.
 
RevDevil said:
If I'm not mistaken, it is the exact same steel. It's made in the same place anyway.:)
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Rev, the CPM is the particle technology. The 154CM is conventional melt. They generally perform very differently, assuming the knife maker knows his/its trade.
 
CPM154 is different from 154CM, that's why there are people wanting CPM 154 in custom knives instead of plain old 154CM. CPM154, IIRC, has a much finer structure to it.
 
knivesandguns said:
CPM154 is different from 154CM, that's why there are people wanting CPM 154 in custom knives instead of plain old 154CM. CPM154, IIRC, has a much finer structure to it.
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CPM154 and 154CM have completely identical composition. The difference is how its made. CPM is Crucible Particle Metallurgy, CM is done by a conventional melt.

I humbly think it will be a long time for CPM154 to catch on. IMO I don't think the average Joe will really differentiate between the two for quite some time. It will depend on the marketing.

Remember back when knives were stamped "440" and not "440C"? The average person had no clue there was a 440A, 440B, and 440C.
 
JNewell said:
Rev, the CPM is the particle technology. The 154CM is conventional melt. They generally perform very differently, assuming the knife maker knows his/its trade.
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Yea, I've read that about CPM. Recently in another thread it was said that s30v and CPM-S30V is the same (despite the CPM process). I guess this is different.
 
Ankerson said:
You can tell the difference when sharpening them and S30V is a more aggressive cutter, but as I said above it has to be 60 RC or better to perform like it should.
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It doesn't have to be, I'm well satisfied with S30V as 58-59 RC because it has similar edge holding but is tougher.
 
RevDevil said:
Yea, I've read that about CPM. Recently in another thread it was said that s30v and CPM-S30V is the same (despite the CPM process). I guess this is different.
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The only way S30V is produced is through particle metallurgy, and only by Crucible. Therefore there's no need to identify it as CPM.

as an aside, RWL34 is another particle metallurgy steel with the same composition as CPM154/154CM/14-4 CrMo/ATS-34.
 
...and every d@mned one of them is better than anything I had, or dreamed of having, a blade made of for the first 35 years of my life! ;)
 
RevDevil said:
Yea, I've read that about CPM. Recently in another thread it was said that s30v and CPM-S30V is the same (despite the CPM process). I guess this is different.
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As I understand it, all S30V is made by crucible and is powder metallurgy. I think that there is no S30V that is not made through CPM process. Although 154CM and CPM 154 share the same composition, they have been manufactured with different processes, 154CM having been done through conventional melting and CPM-154 having been manufactured through CPM process.
 
singularity35 said:
As I understand it, all S30V is made by crucible and is powder metallurgy. I think that there is no S30V that is not made through CPM process. Although 154CM and CPM 154 share the same composition, they have been manufactured with different processes, 154CM having been done through conventional melting and CPM-154 having been manufactured through CPM process.
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JNewell said:
I won't swear to it, but I believe the picture in this Crucible datasheet shows CPM-154 and 154CM closeups. There's a big difference in grain structure that results from the CPM process.

http://www.crucible.com/PDFs/\DataSheets2010\Datasheet CPM 154 CMv12010.pdf
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hardheart said:
The only way S30V is produced is through particle metallurgy, and only by Crucible. Therefore there's no need to identify it as CPM.

as an aside, RWL34 is another particle metallurgy steel with the same composition as CPM154/154CM/14-4 CrMo/ATS-34.
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Thanks fellas. It's good to not be confused! :D
 
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