Steel comparrison-ATS 34 and CPM S30V question

Thanks everyone for the input so far.

Do not worry about the thread getting trashed Stacy and Fitzo, my remark was tongue-in-cheek, I think I fed the fire anyhow,I love the humor here, there is a wealth of it along with all the knowledge and besides, humor is one of the few things that does not get taxed....yet.:jerkit: :D
As for the calf thing, this city slicker just learned something. Did notice in the army though that some of them goats got less ugly after 3 weeks in the bush......:eek: :eek:

Scott, I am waiting for the new Blade, I will check out the article. I just thought that CPM 154 is very similar in composition to the ATS 34.
I guess that is another potential can of worms that I do not want to open.
Thanks.

Mike
 
154CM and ATS34 have always been considered mostly equivalent steels, Mike. That said, the new CPM 154CM is a particle technology version, made the same way as the Crucible S-series. The small particles used in the process constrain grain size, essentially producing a better steel for blades through a finer carbide structure.
CPM is the acronym for Crucible Powder Metallurgy.

The equivalent technology for ATS34 would be the Swedish RWL-34.
 
I stand corrected Mike, thanks for not making me look stupid although I think I did a pretty good job of that on my own. Always good to make sure of your facts before you open your mouth...the two just sounded so similar
My education continues on many fronts.

Sorry about that Scott.:o

Mike
 
Actually, I erred too, Mike. It's CPM154, sans CM at the end.

I've had that Blade all week. Have to read that one of these days.
 
Would I be crazy to say that S30V seems a little like D2 in that it gets a "toothy" long lasting edge? Whereas ATS-34 and 154CM can be honed to a "slick" razor's edge, but doesn't have as good edge holding?

-Just my personal experience.

P.S> S30V is a pain to grind and finish.
 
Some great knife maker once said "D2 takes a lousy edge and holds it well".

How does it do in the working knife department BTW?

Mike
 
The CPM154 takes that toothy edge like D2
That was one of the highlights on my experience with it.
I like that I can mirror polish it also.
The stain resistance is fantastic.

This steel is very close to Aircraft Quality purity wise.
No staining and pitting so far. I have had this problem with S30V.:thumbup:

My only wish is that Crucible would have names it differently. It is very confusing to most people.:rolleyes:
 
Darrel, I just visited Crucible's site and I do not see CPM154 there??

In fact, they do not even mention it?

Am I just looking into my eye lids or what?:confused:

Mike
 
CPM =Crucible PARTICLE Metallurgy . Darrel I agree that CPM154 vs 154CM is going to confuse people .
 
mete said:
CPM =Crucible PARTICLE Metallurgy.
Click to expand...

Sorry for my terminology error, Robert. I confused the fact that Crucible tends to write "Crucible powder metallurgy (CPM)" with their trademarked Crucible Particle Metallurgy (TM). Google "Crucible powder metallurgy" to see this.

Searching on earlier (pre-market) discussion regarding CPM154 suggested there was going to be the addition of some small amounts of V and possibly N to the mix. Reading the Blade article, however, it claims the chemistry of CPM154 and 154CM are identical. Does anyone have a source for actual chemical specs for CPM154?
 
Darrel, I am in Montreal.:D Texas is a looong way away. No sarcasm intended.

I just found however that they do have a service centre (amazingly) right here in Canuckistan. I will give 'em a call, if they do not have it I guess they can get it. Thanks.:thumbup:

Mike
 
i once read a book written by erasteel/damasteel and according to that book powdermetals can be hardened to approx 3 hrc higher or so and not becoming brittle (compared to "regular" steel with the same composition)
 
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