buckg said:
That doesn't seem to be just stretching the truth. It seems like an outright lie. Can anybody see any truth to this statement at all?
You can not tell if it is a truth or a lie, it is simply undefined hype. Cold Steel makes pretty much the exact same statement about every steel them bring out.
Physical testing for sharpness, edge retention, point strength, shock, and ultimate blade strength
Point strength and ultimate blade strength are essentially the same thing, Fallkniven claims their laminates are "stronger" than pure VG-10, however the data actually shows them taking a permanent set earlier. So what exactly is Cold Steel measuring, the onset of plastic deformation, the region of plastic deformation or the ultimate point of failure?
Sharpness is also undefined, sharpness for what media cut in what manner? Two blades tested side by side slicing hemp rope and carving wood could have reversed sharpness scores because those two tasks require different properties for maximim performance. So which blade is sharper, the one which does best on wood or hemp or the average? Which tasks did you pick?
Edge retention is completely meaningless because it depends on strength, toughness, wear resistance, ductility and corrosion resistance, and the amount that it depends on these changes depending on what is being cut and how. M2 at 66 HRC has excellent edge retention cutting cardboard, L6 has excellent edge retention chopping wood, both have lower edge retention than AISI 420HC for salt water filleting but outperform it many times over in edge retention in the first tasks.
Even shock is fairly vague, different steels are notch sensitive to various degrees, so you can see changes in which one is superior in charpy c/v notch or torsional and then you have parallel/pendicular grain alignment.
Not to mention that all steels have different combinations of properties depending on how they are hardened, so what was the heat treatment for all of the steels? If you check the manufacturer webpages for those steels :
http://www.e-tokko.com/eng_original_list.htm
VG-10 looks to be promoted as a superior steel for a knife used for fine cutting. One of the advantages to using VG1 is simply it is different, if Cold Steel used VG-10 one could ask why not just buy Fallkniven or Spyderco. But with a different material you can always claim to be superior and if you are really vague no one can actually say you are lying.
-Cliff