Ranking of Steels in Categories based on Edge Retention cutting 5/8" rope

Ankerson said:
They and a bunch of other knives ended up missing during a move a very long time ago.
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I have a used Buck 110 I had recently won off the 'bay. I might send it along after New Years assuming I don't run into the usual problem of not being able to let it go:D. Shouldn't be a problem after I get my custom Buck 110 in S30V from the Buck custom shop.
 
Noctis3880 said:
I have a used Buck 110 I had recently won off the 'bay. I might send it along after New Years assuming I don't run into the usual problem of not being able to let it go:D. Shouldn't be a problem after I get my custom Buck 110 in S30V from the Buck custom shop.
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You can send it whenever you like, no real hurry, just let me know when you do. :)
 
I would to see rated the ease (or difficulty) in getting the initial sharpness back.
As much as I love S90V this one is for me a pain to restore to razor.
No problem for CPM M4 though with I could restore in a bathroom using the bidet ceramic. :-)
 
Nemo said:
I would to see rated the ease (or difficulty) in getting the initial sharpness back.
As much as I love S90V this one is for me a pain to restore to razor.
No problem for CPM M4 though with I could restore in a bathroom using the bidet ceramic. :-)
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That would depend on how dull they are, technique and the persons sharpening skill.
 
Oh just after the tests?
Ease of sharpening/restoring is IMHO opinion as mandatory as edge retention. :-)
I know some steels which are so painful...
 
Nemo said:
I would to see rated the ease (or difficulty) in getting the initial sharpness back.
As much as I love S90V this one is for me a pain to restore to razor.
No problem for CPM M4 though with I could restore in a bathroom using the bidet ceramic. :-)
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Is there a point in putting a razor edge on S90V? From what I can tell, a cut or two through cardboard would obliterate that razor edge in just seconds. Now I myself put a razor edge on CPM-S125V, but that's mostly because it takes me less than 2 minutes to do so. But since the number of people using power tools to sharpen is still a small crowd, I feel going the extra mile to go from shaving sharp to hair popping sharp is unnecessary given that these steels simply can't hold a razor edge that well.
 
I'm not a tester, but I had a different experience than Noctis. I used my 20CP Para for a month on cardboard and plastic straps at work and it would still cut paper cleanly and shave arm hair, just not quite as easy as freshly sharpened. This was starting with a hair whittling edge and not touching it.

Not trying to argue, just sharing my experience.
 
Handwrecker said:
I'm not a tester, but I had a different experience than Noctis. I used my 20CP Para for a month on cardboard and plastic straps at work and it would still cut paper cleanly and shave arm hair, just not quite as easy as freshly sharpened. This was starting with a hair whittling edge and not touching it.

Not trying to argue, just sharing my experience.
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This is why I love this thread ........experience of other folks .......I like hearing opinions :cool:
 
SiC is Silicon carbide, also known as Carborundum. It was developed to sharpen Tungsten carbide tools which have an HRC (hardness Rockwell C scale) of around 72.
 
Handwrecker said:
I'm not a tester, but I had a different experience than Noctis. I used my 20CP Para for a month on cardboard and plastic straps at work and it would still cut paper cleanly and shave arm hair, just not quite as easy as freshly sharpened. This was starting with a hair whittling edge and not touching it.

Not trying to argue, just sharing my experience.
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Shaving and cutting paper is pretty standard and a level of expected sharpness that I would not want to fall under for a useful edge. For me, a "razor" edge should make your arm hairs jump off without touching the edge to the skin. I'm not too sure how to test it beyond that, maybe newsprint or phone book paper? But then again, 20CP is supposed to be finer grained than S90V, so in theory it should hold a razor edge longer.

Nemo said:
So for you, which steel can hold a razor edge on cardboard?
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I actually feel it's a pretty tall order to expect a knife edge to be razor sharp after cutting cardboard, but CPM-M4 and M390 have been best thus far.
 
I love the Duratech 20CV that Rick Hinderer uses. I found this on cold steel forum and am wondering what the order was - top to bottom or bottom to top or all being equal??

VG-10 = ZDP-189 Then those ZDP Endura 4s don't cut better than the much less expensive VG-10 bladed ones?? :eek:

jankerson

Here is my list of steels in order for edge retention cutting cardboard from my testing so far.
ZDP-189
VG-10
CPM 154
CPM S35VN
VG-1
CPM M4
Duratech 20CV
CPM S30V
AUS-8A
SR-101
INFI
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