Cpm154

Also on a side I have a Pro Series JYD that's 61-62 hardness with a 20 degree inclusive angle that Ive cut coax with and had no chips. Where as58-59 20 degree inclusive S30V knives I have used chip cutting cardboard boxes.
 
Honestly I cant get a good edge on my CPM S30V Military. I sharpen it, and sharpen it, and sharpen it and I just cant get a really good edge like I can on my VG-10, CPM D2, D2, 1095, H1, ect, ect...

I find myself sticking with my VG-10 stuff and CPM D2 because I dont have any issues getting a good edge back on them.
 
SteelSnob said:
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
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I've gotten rolling on my S30V but not chipping. At least, under the microscope it looked like plastic deformation, an indication that the steel on the softer side. CPM154 is usually hardened higher than S30V, so it is less prone to the edge deforming. Can you confirm that the S30V really chipped, or rolled?
 
I have to agree with SteelSnob on this one. When it comes to fine edge sharpening, S30v is not my favorite steel. Cardboard cutting seems to cause micro serrations on the S30 blades much faster then 154CM, D2 and of course S90v. Unless a polished edge of at least 30 degrees with a micro bevel of at least 40 degrees is used, the edge just doesn't hold up for me. Of the eight knives I have in S30v only the UK PenKnife appears to exhibit edge holding that is superior to 154CM . My Benchmades blades are not a close second. Two high end knives appear to loose their smooth sharp edge and develop teeth the fastest. It would appear that a smooth edge application and retention was not the overriding criteria when some knife makers selected S30v at 58 to 60 Rc. I noticed this a while back but thought it was just my imagination. OldDude1
 
Outdoors Fanatic said:
Give me VG-10, CPM154 or CPM-D2 over S30V any day of the week! Actually, I prefer INFI or A2 way better...
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I just received my first knifes in VG-10, CPM154 and A2. Wow, Much better than the AUS-8 and cheaper steel knives I own. I am very quickly becoming an A2 convert. My Bravo-1 takes the best edge of any knife I own. I am beginning to understand what people mean by scarry sharp.

I'm thinking about a knife in D2 (Dozier maybe) but am also wanting more Bark Rivers. Problem is everytime I find one I want no one has it in stock and they don't know when they will get any. Confusing?

Bill
 
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cotdt said:
I've gotten rolling on my S30V but not chipping. At least, under the microscope it looked like plastic deformation, an indication that the steel on the softer side. CPM154 is usually hardened higher than S30V, so it is less prone to the edge deforming. Can you confirm that the S30V really chipped, or rolled?
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I have had both. The rolling I have had is easy to tell because it's not just one tiny spot with steel missing like in the chipping I've had. When mine I have rolled a portion of the edge is there just off to one side. But I have had plenty of both on more than one knife.
 
I'd like to know. I think the V stands for Vanadium but not sure. I have heard they're cpm154 but i don't know for certain.
 
I think that if you get a knife from a good manufacturer / custom maker, then generally chipping or rolling of the blade will not occur in any of the steels talked above. Also, Sharpening skills come into play when talking about 154CM and S30V. I assure you that if you'd put a very long, thin bevel, and a thin edge, both S30v and 154Cm would chip under moderate use.
I do have a lot of Spyderco's S30V, and I've never had a problem with any of their knives.
By the way, if I want something tough, I usually go around 154Cm and such, right to the high carbon and tool steels. Though when I'm in need for a stainless blade, I'd got with VG-10, S30V and even H-1, before coming to 154CM.
 
Did you not read the thread? CPM154 not 154CM is what we're talking about. And I put very thin edges on CPM154 with absolutely no problems. The knives that chipped were all from high end manufacturers and You're talking about sharpening skills but one of the times I had sever chipping it was fresh from the factory with factory edge still on it. But sharpening skills isn't the issue I sharpen and strop very thoroughly.
 
I've had better experience with CPM154 then S30V. It seems to take a better edge and I really haven't noticed one wearing any quicker then the other.

I believe someone bought or is buying Crucible. Hopefully they will maintain the product line.
 
I have two 110s',one a Custom Shop in S30V.The other is a Bass Pro,in CPM154.Both were heat treated by Paul Bos and both are outstanding knives!Can't notice much of a difference in them,Both get scary sharp and hold a great edge.
 
I've seen blades marked 154V
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If those numbers were on a spyderco it's a collectors number. 154V isn't a proper marking for steel. 154cm or CPM 154cm have no V in their names and no vanadium in the steel.
 
CPM S30V

Carbon 1.45%
Chromium 14.00%
Vanadium 4.00%
Molybdenum 2.00%

________________

CPM 154

Carbon 1.05%
Chromium 14.00%
Molybdenum 4.00%
 
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