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

Ankerson said:
I don't give out numbers, everyone knows that, numbers are the devils playground... ;)

The basic facts are that slicing cuts will dull the knife faster than push cutting because slicing cuts are a lot more abrasive to the edge.

That's as simple as I can make it. :)
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This formula seems strange to me, let me explain why.
When I play with my knife and I do few notch on wood, the part that I use to make the notch will dull more fast than the rest of the blade. The strange thing is ...the rest of the edge was been used more than the notch edge all the day long.
A good example from my experience of push cutting vs slicing cutting
So... more surface you have "use" & more longer the knife edge will take to become dull, because you have more resistance & endurance to the facts that you use more surface to dull....& viceversa.
This is my common sense from my Experience... not a fact:)
 
kurodrago said:
This formula seems strange to me, let me explain why.
When I play with my knife and I do few notch on wood, the part that I use to make the notch will dull more fast than the rest of the blade. The strange thing is ...the rest of the edge was been used more than the notch edge all the day long.
A good example from my experience of push cutting vs slicing cutting
So... more surface you have "use" & more longer the knife edge will take to become dull, because you have more resistance & endurance to the facts that you use more surface to dull....& viceversa.
This is my common sense from my Experience... not a fact:)
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Strange but true, slicing manila is Hell on a edge and more so than push cutting.
 
Hard wood is much more difficult to cut than manila rope, so... which one is more abrasive? with which cut..push cut or slicing?
 
Hardwood is nothing like manila, I could cut hardwood all day with even a low grade alloy and it would still be sharp. Take the same knife and make 10 cuts through manila and it likely won't even be shaving sharp.
 
kurodrago said:
Hard wood is much more difficult to cut than manila rope, so... which one is more abrasive? with which cut..push cut or slicing?
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they make cutting boards out of hard wood, it must not dull blades too much.

just because something is harder to cut through doesn't necessarily mean it's more abrasive. sticking your knife in the sand is easier than cutting hardwood, but the sand will kill the edge much faster than any wood will.
 
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Dear Ankerson,

Thank you for the fantastic unbiased hard work you have conducted and published for all of us. I have made changes in the way I purchase and even use my knives based on your results.
I wonder if you have done any work on BG42 aerospace bearing steel knives, and where would they fall in your opinion in the rankings.
Composition
---C - Cr- -- Mn-- Mo -- Si -- V
1.15 - 14.5 - 0.5 - 4 - - 0.3 - - 1.2
I would much appreciate your thoughts.

Thank you again for the best comparison published.

Cheers
 
I cut hemp twine at work all day(mostly 2ply).how would you compare the abrasivness of hemp compared to manila?
 
jimnolimit said:
they make cutting boards out of hard wood, it must not dull blades too much.

just because something is harder to cut through doesn't necessarily mean it's more abrasive. sticking your knife in the sand is easier than cutting hardwood, but the sand will kill the edge much faster than any wood will.
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Nice.....


spydusse said:
I cut hemp twine at work all day(mostly 2ply).how would you compare the abrasivness of hemp compared to manila?
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I don't know;):D
 
cukros1 said:
Dear Ankerson,

Thank you for the fantastic unbiased hard work you have conducted and published for all of us. I have made changes in the way I purchase and even use my knives based on your results.
I wonder if you have done any work on BG42 aerospace bearing steel knives, and where would they fall in your opinion in the rankings.
Composition
---C - Cr- -- Mn-- Mo -- Si -- V
1.15 - 14.5 - 0.5 - 4 - - 0.3 - - 1.2
I would much appreciate your thoughts.

Thank you again for the best comparison published.

Cheers
Click to expand...

I plan on testing BG-42, just haven't got around to it yet. :)
 
spydusse said:
I cut hemp twine at work all day(mostly 2ply).how would you compare the abrasivness of hemp compared to manila?
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Get some 5/8" Manila rope and make some cuts through it and you will understand completely.

And it's not easy to cut either, slice through it.
 
Hey Jim,
I heard of a spyderco mule m390 coming in at 61+ wich is awesome. Any plans to test it out and see if it moves up a category?
 
spydusse said:
Hey Jim,
I heard of a spyderco mule m390 coming in at 61+ wich is awesome. Any plans to test it out and see if it moves up a category?
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Not buying anything right now, have 2 customs getting done that I have to pay for. ;)
 
Jim, I have one I can forward to you like the S35VN if there is interest and time at your end. Or not. Either way is fine. ;)
 
I will zip it off in the morning. If these really are around 61Rc, I'd expect very good results, but the proof is in the testing.
 
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