Toughest Steel EDC for under $100

Unless you stab your knife into dirt or cut on a ceramic plate or concrete or something that'll truly dull/wear/round the edge, for most people, in normal daily use, the harder the blade, the longer the edge will last, because edge rolling is usually what takes the sharpness down. Cardboard and carpet and rope will surely abrade down an edge, but I don't cut lots of these daily, just once in a while.

The hardest factory production blade you can get is an M2 blade from Benchmade, since they target a range of Rc 60-62 with M2. On average, that'll be the hardest blade you can get, and therefore, less likely to roll. There is not another production blade with that high a target hardness... the hardest would be ATS-34 / 154CM with an Rc 60-61 target (which on average is really damned close).

Turns out M2 is also quite abrasion resistant, so for all you just aching to chime in that "hardness isn't the end-all of edge holding", spare your typing... M2 steel has about as many or more hard carbides (Moly, Vanadium, & Tungsten) as any production folder. (yeah, I know S30V has 4% vanadium, and it has nitrides, etc, but I start at harndess and am working through from there... and S30V isn't coming available past Rc59 generally).

M2 is also the toughest factory production steel you can get in a folder at such high hardnesses. Period. Tough means it resists chipping better than all the stainlesses. And that likely includes S30V.

Downside: M2 isn't stainless. That is the big tradeoff for such a great combination of hardness, toughness, and abrasion resistance. And you can only get from Benchmade in production clothes. Few custom makers use M2 either, too hard to heat treat.

M2 will slightly exceed all the others in overall, all around performance, and if you have diamond stones, it's easier to get a good scary edge onto than most steels since it isn't a stainless, it's a high alloy tool steel. If you don't have diamonds, well, get 'em, or get good Norton synthetic water stones.

If you want stainless, the steels go in this order in terms of performance assuming they are all at the same hardness:
Best @ top:
S30V
BG-42
154CM / ATS-34
VG-10

Problem is you can't find S30V at Rc60 very easily, but I wouldn't sweat it. I'd take S30V at Rc 59 since it is also tough, and fine grained, and abrasion resistant. Close call on S30V at Rc59 or BG-42 at Rc60-61. Depends on the use/application as to which I'd prefer.

Stick with any of the top 3 above and you have a good blade.

VG-10 is fine too, lest anyone get their panties in a wad. :yawn: It's just got fewer carbides than all those above, and I don't recall seeing it run at Rc60-61.... usually VG-10 is Rc59.

Buy from a quality production outfit and you tilt the odds that you'll get a good heat treat. I tend to end up at Benchmade or Spyderco it seems. YRMV.
 
S90V is loaded with Vanadium Carbides and can easily be heat treated to reach Rc60+ given the right heat treat equipment.

S90V will likely, overall, hold an edge better than all the above, beating M2 by a small margin.

S90V is:
1. more expensive to purchase in stock form
2. hard to profile and grind
3. difficult to heat treat (very high austenizing temperature)
4. hard to finish (unless you bead blast)
5. hard to sharpen, and that is directly related to harder to dull also.


Microtech is the only production company I've seen that put out a few knives in S90V. Hard to find the LCC in S90V, and expensive. They may have only made aroudn 200.
 
I havn't seen any production knives made of S90V. I always make sure I grind off the razor edge on my Leek whenever I sharpen, even if it takes me an hour of side to side grinding. The Enduras...ahh..I've been wanting to get one, but they are quite er...ugly (dont hurt me :)) The stainless Enduras are nice but AUS-6 or AUS-8, whatever they're using isnt exotic enough; I want an edge that will last through three days of cardboard cutting and yet be able to shave after, if that's even possible..

Mostly my knife is used for paper cutting, letters, steaks, etc etc. Usually I don't see any rolling in my Leek blade even when I look really closely at a dulled edge. Maybe my standards and expectations for 'sharp' are too high because I can still slash a piece of paper in half after I've declared that my Leek is 'dull'
 
;) Haha, you are absolutely right. They, and the Delica's are indeed ugly. Appearance wise that is. If you use them for a week though, you will fall in love with them. You will learn to value their form and function over appearance. Alot of Spydies are ugly. All Spydies feel amazing in the hand and perform 100% though. Thats what makes Spyderco stand out. They give beauty a backseat to ergos, and high performance. They are my favorite company all the way. (Benchmade being a close seconed.)

I have carried a Delica for half a year now. It's looks have actually grown on me to the point were it only looks semi-ugly now, haha. I won't give it up as my EDC though cause it will take everything I throw at it. Including keep that razor edge for a long time. Just what you seem to be looking for.
-Kevin
P.S.- Buy a Delica or Endura for around 40-45 bucks. (FRN that is) If you don't like it sell it or keep it. But give it a shot for a week and I doubt you will not like it. Do a search of the Delica on these forums. You will see the kind of praise the veterans and newbies alike have for it.
 
Originally posted by V10011011
Mostly my knife is used for paper cutting, letters, steaks, etc etc. Usually I don't see any rolling in my Leek blade even when I look really closely at a dulled edge. Maybe my standards and expectations for 'sharp' are too high because I can still slash a piece of paper in half after I've declared that my Leek is 'dull'
Yeahhh... ok... I think I understand now...
 
Originally posted by V10011011
I always make sure I grind off the razor edge on my Leek whenever I sharpen, even if it takes me an hour of side to side grinding.

:confused:
 
If you don't mind the knife being big and ugly, and being a hard one to sharpen when the times does come, I'd recommend a 440V Spyderco Military. Even at its relatively low hardness, I've found Spyderco 440v to leave M2 in the dust as far as edge holding goes. Don't ask me why. I wouldn't have believed that 440V could be so resistant to edge rolling at that hardness, and 440V is VERY abrasion resistant. Of my hundred or so knives, its the Military that gets used the most.
 
V10011011 :

Usually I don't see any rolling in my Leek blade even when I look really closely at a dulled edge.

The edge rolling rdangerer is referring to is beyond the visible. You can see it however at 20x magnfication if you look straight down at the edge. Check it before and after steeling.

You can get production Japanese blades, fixed and folders with edges of 62-65 HRC. Not expensive either, Garret Wade and Lee Valley sells them among others.

-Cliff
 
You need to know that Buzzbait has applied a very nice convex edge to his 440V Military.

I tried, got convex on it, but can't get nearly sharp enough for my tastes. So mine carries a steep (25-30 deg per side) flat bevel.

And even though my earlier Military was from the harder earlier batches, I find the edge rolls much more easily than my M2 710.

Results can and do vary.
 
Yep. I forgot about the convex edge. It isn't nearly as convex as it used to be though. I've changed my sharpening strategy over the last couple months. I’ve taken to sharpening the 440V blade with the SharpMaker 204 coarse hones. The previous convexing is merely serving to thin out the edge at this point, and create a little less drag on deeper cuts. I just wasn’t happy with how much “bite” I was getting with a convex edge, when performing household utility chores. I think I’m getting the best of both worlds at this point. But you know me. I’ll probably end up changing my sharpening methods again next week.

I’m pretty sure that the rumor about there being multiple 440V Military runs, done at different Rockwell hardnesses, is false. I believe that Sal has debunked that myth. The 440V version of the Military has always been heat treated at the same Rockwell hardness specs, although there may have been refinements to the heat treating process over the years.


440V…… M2…… D2….. They’re all awesome steels. I’d say that once you get to production quality steels of this caliber, the heat treatment probably makes more of a difference than the actual type of steel.
 
Yes, I mean the burr, ack. School's out, english is sliding..

Thanks for help, turns out the edge is rolling at 17 degrees..when I sharpen the blade at 20 degrees it stays sharp longer even if it doesnt feel as sharp to touch.
 
Buzzbait :

I m pretty sure that the rumor about there being multiple 440V Military runs, done at different Rockwell hardnesses, is false. I believe that Sal has debunked that myth.

Posts from 2000 and 2001, indicate it was changed, it was advertized up to 59/61 RC intitially. The reducing of the hardness to such a low level, ~55/56 RC was the main reason that it gathered such a poor reputation as a blade steel. It dented and rolled easy and was difficult to sharpen, numerous posts were made on these issues. Custom makers using a higher hardness had no such problems. It has been pretty much directly replaced by S30V.

-Cliff
 
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