154V steel

Ritt

Ritt

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Anyone have any in-hand impressions of the new(?) 154V steel? I tried searching a few ways but didn't get any hits. Any information would be much appreciated.:cool:
 
There is 154CM a very fine knife steel ,[the same as ATS-34 ] and there is the new CPM 154. Both are made by Crucible steel Co and basically the same composition but the CPM 154 is made by their CPM process which produces carbides that are much finer and more uniformly distributed .This makes a better blade steel for the maker and user.So far the comments have been very favorable .Do a search on the Shop Talk section.
 
Thanks mete. Using "CPM154" did get a lot of hits.

Anyone know the difference between CPM154 and CPM154V? Is the V added vanadium?
 
Ritt said:
Thanks mete. Using "CPM154" did get a lot of hits.

Anyone know the difference between CPM154 and CPM154V? Is the V added vanadium?
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I think you're just making up the CPM154V. Where did you read about it?
 
Larrin said:
I think you're just making up the CPM154V.
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You must work in customer service, Larrin...

Thanks for the link DeathByCactus, but I didn't see anything about CPM154V. I have found lots of stuff on the new CPM154, just nothing about the V. Maybe the V is implied?
 
Some makers are marking their blades 154V when they use CPM154, that is where the confusion comes in.
 
Aye, I have a feeling the V is implied. I have not personally heard anything about a CPM154V being used, but then again I also hadn't even heard of CPM154 until I read this thread lol. I only knew about 154CM... <---still learning.

"RWL-34 competetion. That is good news.
Since it is of their partical technology and it has some vanadium they might could call it CPM 154V.
RL"

That was his (rlinger-knifemaker) exact quote so nothing concrete but might help give others a clue.
 
ATS-34 and 154CM are both very good and well-established cutlery steels. Their respective alloys resemble one another so closely that I doubt that anyone's going to notice a difference between the two.

The powdermetallurgic version of ATS-34 is called RWL-34 and has been around for a while. It's a very popular steel among custom knifemakers in Europe and seems to perform very well. I think it's safe to assume that CPM154's performance is just about the same.

I don't know about the added Vanadium, but it sounds like it further improves an already excellent steel, as V forms very hard carbides.
 
rwl-34 is powder ats34/154 cm with a bit of V in it to reduce grainsize, its been around for atleast 10 years, the V content in rwl-34 is 0.2%
 
Ritt said:
You must work in customer service, Larrin...

Thanks for the link DeathByCactus, but I didn't see anything about CPM154V. I have found lots of stuff on the new CPM154, just nothing about the V. Maybe the V is implied?
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I was hoping if I insulted your intelligence you'd tell me where you learned it from. Sorry. :)

Like every else said, CPM154 has a tiny bit of vanadium added compared to 154-CM which doesn't have any, and RWL-34 has a little bit as well, about the same amount. This doesn't add any wear resistance, but does refine the grain, bringing about other benefits.

I can't imagine why that knife would have 154V on it, there is definitely no such grade. My guess, like everyone else's, is that this is his mark for CPM154.
 
Larrin said:
I was hoping if I insulted your intelligence you'd tell me where you learned it from. Sorry. :)

Like every else said, CPM154 has a tiny bit of vanadium added compared to 154-CM which doesn't have any, and RWL-34 has a little bit as well, about the same amount. This doesn't add any wear resistance, but does refine the grain, bringing about other benefits.

I can't imagine why that knife would have 154V on it, there is definitely no such grade. My guess, like everyone else's, is that this is his mark for CPM154.
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Suggesting I "made something up" doesn't so much insult my intelligence as it does my integrity. You can rightly call me ignorant in regard to many subjects, but calling me a liar is something altogether different. I'd imagine (I'd hope, actually), that I'm not the only person who'd make the distinction. That's all I've got to say about that.

Moving on, thanks to everyone for the information and clarification. There are a lot of threads out there on CPM154, but the V has been less discussed. It should have occurred to me earlier, but I'm going to e-mail the maker and ask him about it. I'll post an update if/when I hear back.
 
From RJ Martin, about a year ago (4/26/05), posted on another forum:

"I believe the first batch of CPM 154CM had a small (.2%) bit of Vanadium. I think Crucible is still deciding on the final alloy configuration. They have some plate made, and it is available for purchase."
 
From the maker, Mr. Mayo himself:

"the CPM steels are made with a new process so they can load up the vanadium in the steel, thus the V

I think the true name is CPM 154CMV.......much too long to put on a knife blade."
 
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