CRKT Cobia Folding Knife Discussions | Drop

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Jul 28, 2015

Beautiful knife, poor blade steel, IMO App Equivalent to 440A or 420 HC
Composition: Werkstoffnummer 1.4116 - X45CrMoV15 / X50CrMoV15 C 0,45 - 0,55 % Si max. 1,00 % Mn max. 1,00 % P max. 0,040 % S max. 0,030 % Cr 14,00 - 15,00 % Mo 0,50 - 0,80 % Ni 0 V 0,10 - 0,20% http://www.metallograf.de/start.htm?werkstoffkartei/4116/4116.htm

tyler555

377

Jul 28, 2015

painkillerSums up almost all of crkt's knives.

dalethorn

193

Jul 28, 2015

painkillerI've been looking over several blade forums, and 4116 seems to be a very good steel in this class of knife - better than the 8cr13mov that many popular Chinese-made knives have.

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IATerakahn

Aug 2, 2015

dalethornHow would it far as an EDC knife do you think? I imagine it won't measure up to an S30V.

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salehonasi

Aug 2, 2015

IATerakahnThat depends on your EDC tasks, of course, but if you're talking about light use (cutting open clamshell packaging, opening mail, trimming threads, breaking down the occasional box, etc.) 1.4116 is actually quite adequate. It's roughly on par with steels like 420HC or 12C27 - it sharpens to a fine edge very easily, and has excellent corrosion resistance, but loses out in raw edge retention. S30V, on the other hand, is tougher to sharpen, but will hold a working edge much longer. Note that S30V doesn't hold an ultra-fine edge particularly well, so if you like to keep your EDC hair-splitting sharp, something like 1.4116 doesn't give up much to steels like S30V, due to how easy it is to resharpen. But, if you want something that will break down large amounts of cardboard or the like, that's where high-carbide steels like S30V really differentiate themselves.

sprk1

232

Aug 3, 2015

salehonasiMay I add that s30v generally has and preserves a more "toothy" edge, which is in general better to go through tough materials (as you mentioned = cardboard). It can get hair splitting sharp as you mention, but its use case IMO is for hard use. My knives go through too much hard use to consider this, but for urban use s30v holds little to now advantage over the likes of 420hc.

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