Cpm154

S

SteelSnob

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Sep 7, 2009
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Am I the only one that's is praying S30V will soon be replaces by CPM154 by most manufacturers?
 
I hear a lot of good talk of this steel, what do you feel makes it better than S30V?
 
154CM was my first and favorite "super steel," before S30V became popular. I'm very happy with it, but as far as it taking the place of S30V, I think it is the other way around. S30V is seen by many as the near perfect blend for blade steel. A great example of this is the benchmade Griptilian. The standard models 551 and 550 use 154CM, but the "upgraded" higher priced Ritter Grip 552 cost a lot more and has an S30V blade.
 
SS isn't talking about 154CM, he's talking about CPM154.

I've never used much S30V, but I love my knives in CPM154. They take a great edge. The ones with the Bos heat treat are really impressive.
 
Why? S30V is a better steel than CPM154. CPM154 may be easier to grind and take a mirror polish with less effort, but that's on the knifemaking side. For the end user, S30V has better wear resistance and is tougher at the same hardness, and every bit as corrosion resistant.
 
I haven't used CPM 154 but,

According to Crucible,

-S30V has about 33% more "wear resistance"

-they are equal in toughness

-CPM154 has a little bit more "grind ability"

Eh.... S30V looks better to me.
 
Well I have used S30V a lot and read a lot about it and it's not all it's cracked up to be IMO.The only S30V I've seen that could handle a accute angle without rolling or chipping is my Spyderco UK Pen Knife. I have seen other S30V blades chip cutting cardboard boxes. I haven't noticed any significant edge retention advantages other that in my Strider PT. I guess I'm tired of the chipping when I try to put accute angles on. I haven't had this problem with CPM154. I don't believe mostt of the S30V I have used is any better than the CPM154 I've used. But maybe it's just the HT
 
I never have good experience with 154CM, chipped every few cuts, so it will take alot to convince me to try CPM154. On the other hand, I have wonderful experience with both S30V and CPMS30V, hair whittling edge, great rust resistance, and never chipped. Why would they want to replace a better steel with a lower grade steel is beyond me
 
CPMs30v and s30v are the same thing. Cpms30v is the whole name and s30v is the short version.
 
It's not a lower grade steel. It performs better hence why it's used in a lot of higher end knives. If it was lower grade they would stick to S30V in knives like Galyean Pro Series. I don't believe S30V is tougher or as tough as a CPM154. What good is a blade you have to resharpen because it has chips in it.
 
I think it would be great if production makes started using s30v in the mid to high mid range knives, and that 154 would take over the lower price ranges where AUS6 and 8 are being used now.
I have no experience with either 154 or S30V, but the AUS8 bladeI had sucked for edge retention. yet my D2 blade just keeps going and going
 
I'd pick CPM154 or even plain jane 154CM over s30v any day. It's probably more down to where the knife was in the oven and what side of the bed the heat treater woke up on, but I've had much better luck with 154 than s30.
 
Cpm154 and 154cm are not the same. Cpm means it was created using crucible's powder metallurgy proccess and it's given CPM significant increases in toughness and edge retention in my experience. Another steel I would like to see used more is Duratech 20Cv.
 
Wow! Learned alot in just a few posts. I thought 154cm is what was being referred to also. I like 154 cm and I like D2. I do not think I own any s30v yet. I like 154 cm, it does what I need it to do and it holds an edge ok. The blade on my Leatherman Charge cut up alot of squid on an aluminum folding chair post as a cutting board. I was amazed at how it sliced all day long and did not dull from my abuse. That day made me a fan of 154 cm. Now, I have other lofty pursuits. I do not know if I should thank you or curse you metal heads!!!!!!
 
I dont think the one will replace the other. There will always be a demand for both. I feel that as soon as we become accustomed to a steel eg. S30V or CPM 154 CM many will start looking towards other steels like S90V, S110V etc or who knows what steel will be the new "in" thing?

I like 154CM though, but I prefer 440C. 440C has gotten a bad rep due to cheap chinese stamps that said 440C. 440C with the right HT has performed just as well as my 154CM and even better with edge retention. Many makers still prefer 440C over any other steel.

I like to to remember what Spyderco has on one of their shirts. "If the steel is the heart of a blade, the heat treat is the spirit" Heat treat is the key to any blade steel!
 
Last edited:
sweet_hitch-hiker said:
i thought that cpms30v was better than s30v because crucibles method of making it allowed for more uniform grain size or something i'm not exactly positive
Click to expand...

No but that is true for 154cm using the CPM proccess and being what's called CPM154. S30V has always been CPM.
 
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