Cpm154

kamagong

kamagong

Gold Member
Joined
Jan 13, 2001
Messages
10,937
Does anyone have any experience with this new steel yet? It looks very exciting. While I like S30V, I hate sharpening it because of the nasty burrs it tends to form. CPM154 sounds like it might be the next perfect steel.
 
You mean the CPM-154 that has been around for years that is basically the same ast ATs-34 which has also been around for years? s30v should be superior if you know how to sharpen it properly.
 
The day the first "perfect" steel arrives, I'll be looking for the next one.
Does anyone know anything about the CPM 154CM? I know Jerry Hossom mentioned it on his forum a while back, but there has been nothing from Crucible on this. Until I see something on their web site or from someone that works there, I'll assume its strictly research.
 
CPM-154 means Crucible Particle Metallurgy-154, which is what 154-CM is, they are the same, identical material as stated in the post by Mr. WadeF up there. :D

I like it a lot! It makes a wickedly sharp edge. Collect the whole set!

Here's their web page
 
Satrang said:
The day the first "perfect" steel arrives, I'll be looking for the next one.
Does anyone know anything about the CPM 154CM? I know Jerry Hossom mentioned it on his forum a while back, but there has been nothing from Crucible on this. Until I see something on their web site or from someone that works there, I'll assume its strictly research.
Click to expand...

Slaps forhead! :rolleyes:

Hey! Look at this topic that is only a few down from this one:

http://www.bladeforums.com/forums/showthread.php?t=344707
 
Satrang said:
The day the first "perfect" steel arrives, I'll be looking for the next one.
Does anyone know anything about the CPM 154CM? I know Jerry Hossom mentioned it on his forum a while back, but there has been nothing from Crucible on this. Until I see something on their web site or from someone that works there, I'll assume its strictly research.
Click to expand...

Yeah, I know a bit about it. It's been a big wonder steel for something like the past decade. I have it in three or four knives, it's a lot like an American version of ATS-34. :D :P Welcome to yesterday! :P

Oops. Guess I was wrong. Well, I'm used to it. :D
 
Wade, I just came across that myself. The post you want is # 54 by conan.

Crucible specifically developed CPMS30V to be a tough, stainless knife blade steel. Our research people worked on this for approximately 18 months. Feedback from most custom makers and production companies would suggest we accomplished our goal. However, CPMS30V does have one or two shortcomings. It is more difficult to finish than ATS34 and 154CM and it does cost more.

Because we do listen to custom knife makers, we are now offering CPM154. CPM154 is our attempt at offering a premium stainless knife blade steel that is more user friendly - easier to finish - easier to grind and polish. Because we use the CPM process to make CPM154 it should also outperform conventional 154CM. Before we will promote CPM154 as a success(achieving our intended goal) - we wait to hear from the custom makers who are using it. If they have good things to say and endorse the grade we will forge ahead. If feedback is negative we will go back to the drawing board and make the necessary adjustments to try and meet the custom makers' needs and suggestions.

Also, based on our experience with CPMS30V, it is still a better grade than conventional 154CM and better than CPM154 but, as mentioned above, is difficult to finish.

ATS34 is also a great stainless knife blade steel and will always be a main-stay in the stainless knife blade steel family.

On the topic of heat treatment, it doesn't matter what steel we are talking about, if it is not heat treated correctly it will not attain its full potential.

Lastly, 154CM and ATS34 are basically the same steel. They are both very good stainless knife blade steels.

Based on the feed back we have received from the knife making community, CPMS30V outperforms 154CM. If a knife maker is still using 154CM rather than CPMS30V it is because 154CM is good enough for the type and style knife being made and it costs less than CPMS30V and is easier to work with.

Thanks for listening.
Click to expand...
 
Now I'm confused. So there is CPM-154CM and now they are working on a CPM-154 that is something different than CPM-154CM?
 
Wade,

CPM-154 and 154CM are related, yet different. CPM-154 is supposed to be the powdered metal version of 154CM. I guess you could look at it as 154CM enhanced.
 
kamagong said:
Wade,

CPM-154 and 154CM are related, yet different. CPM-154 is supposed to be the powdered metal version of 154CM. I guess you could look at it as 154CM enhanced.
Click to expand...

Well then! My apologies to those who I thought were silly for asking what CPM-154 is. :) I figured it was 154CM they were asking about. :footinmou
 
Crucible's powder metal version of 154Cm, called CPM-154 tested significantly better in edge retention over the original 154Cm. (20%+) Tests were performed on a CATRA. Heat treat was the same as 154Cm.

sal
 
Sal Glesser said:
Crucible's powder metal version of 154Cm, called CPM-154 tested significantly better in edge retention over the original 154Cm. (20%+) Tests were performed on a CATRA. Heat treat was the same as 154Cm.

sal
Click to expand...

I'm pretty interested in the new CPM154CM. 20% better than the old. Puts it in the same league as bg42, right? but what about price?

How many percent better is S30V's edge retention as compared to the old 154CM?
 
Yeah, I really miss BG42. There was a custom UUK-type knife with a tanto tip in BG42, small, micarta scales, on bladeart that I really wanted to buy, but it was on clearance, and when I had the money, it had disappeared. >.<
 
What I find kind of interesting is this progression from Crucible for knife steels :

CPM60V -> CPM90V -> CPM30V -> CPM154

What is the next logical step, CPM440A?

-Cliff
 
if CPM154 is powdered with added vanadium, wouldn't that make it similar to RWL34 made in Sweden, which is powdered ATS34 with added vanadium?
 
spyken said:
if CPM154 is powdered with added vanadium, wouldn't that make it similar to RWL34 made in Sweden, which is powdered ATS34 with added vanadium?
Click to expand...

yes, CPM-154 is basically like RWL-34 with the added vanadium. it supposedly takes a killer finish just like RWL-34. the only reason we don't see much more of RWL over here in the US is the cost. hopefully CPM-154CM isn't going to be super costly like S30V.

another thing i read was that CPM-154 with the SAME heat treat is like 2 RC higher than conventional 154CM.
 
I think Crucible needs a new guy naming it's steels. CPM 154, 154 CM? Reminds me of the 440V and 420V mess.
 
CPM is the standard prefix for their steels, as is stands for the manufacturing method, they make lots of CPM versions of steels, they all have names like CPM-XXX, so CPM-154CM.

I liked the 440V, 420V names as they made more sense, basically they noted that the cpm grades were modifed bases of 440 and 420 stainless.

Of course modified 440 stainless doesn't sound as impressive as S60V.


-Cliff
 
You must log in or register to reply here.
Back
Top