8Cr13MoV vs aus 8

M

mohab1993

Joined
Dec 11, 2011
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Which one do you prefer? To me I personally like 8Cr13MoV a little bit more. I have both steels and use them equally. What I find (through my experience) the 8Cr13MoV holds an edge longer then the AUS 8 (and is cheaper). Feel free to throw in your 2 cents, but please dont bash on the two and say "VG10" or another steel besides the two are better. This is strictly "8Cr13MoV vs aus 8"
 
So much depends on the heat treat the steels are given. They are neck and neck in my experience, too close to declare one steel better than the other.
 
I think that these two steels are similar enough that heat treat plays a huge role in any performance comparisons between the two. So I guess you could say that it depends on whose AUS-8 vs. whose 8Cr13MoV.
 
Tsujigiri said:
I think that these two steels are similar enough that heat treat plays a huge role in any performance comparisons between the two. So I guess you could say that it depends on whose AUS-8 vs. whose 8Cr13MoV.
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YES.
From a composition standpoint, they are so similar you would have problems telling them apart.

In my own side-by-side comparison slicing manila rope, I was unable to differentiate between the two alloys. Both were at ~59HRC.

Sal Glessar said that in their testing the edge retention is the same when both are hardened to the same hardness. He has also said that AUS8 does a bit better in salt spray tests, indicating that AUS8 has a bit better corrosion resistance.
 
ppsshhh 8cr is by far better seems like it holds an edge longer and seems more stain/rust resistant

oh wow now that i look at what everyone else says it seems like i am retarded but in my experience what i have said still stands

might be because i like the tenacious more that rat 1 or my cold steel but hey just my two cents
 
Bill1170 said:
So much depends on the heat treat the steels are given. They are neck and neck in my experience, too close to declare one steel better than the other.
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Completely agree! My cold steel mini ak-47 in AUS8 is as good if not better than my kershaw knives with 8CR13MOV
 
I have some experience with both-mostly Kabar and SOG AUS-8 and Byrd 8Cr. I haven't abused any 8Cr like I have some AUS-8 fixed blades. Back in the day when Seal Pups came standard with AUS-8, I stocked up on them. They were such a fantastic companion knife, SOG's heat treat made for an incredible balance between strength and edge retention. Kinda funny, it often acted more like high carbon when abused-edge would roll but not fracture. Back then they were doing something right. AUS-8 seems to take a hairsplitting edge much easier than 8Cr. Tit for tat, both are capable user slicing steels, but I think I prefer AUS-8.
 
knarfeng said:
YES.
From a composition standpoint, they are so similar you would have problems telling them apart.

In my own side-by-side comparison slicing manila rope, I was unable to differentiate between the two alloys. Both were at ~59HRC.

Sal Glessar said that in their testing the edge retention is the same when both are hardened to the same hardness. He has also said that AUS8 does a bit better in salt spray tests, indicating that AUS8 has a bit better corrosion resistance.
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On corrosion resistance, 8Cr is not that good. Bloodstain (my own, from shaving) rinsed with water without rubbing, and dried, will invite rust the next day. It has to be soaped, rubbed & rinsed properly. This is on semi mirror blade that I have polished, whih should increase rust resistance.

As of edge holding, I can't compare with AUS8, not having one at the moment. I can say it lasts long enough as EDC.
 
ooohhh actually i retract my statement due to the fact i just remembered my sog twitch II is in aus 8 (a i believe could be wrong)

hhmm they are very similar aus8 in that sog is fantastic in cold steel it seems to rust more and in an ontario rat 1 its prob medium i think i remember seeing a rust spot on that

my tenacious has been put away wet many times and rides in my back pocket with florida heat's sweat coating it and rust has been minimal

however i have used that twitch II for MANY MANY MANY years and that includes skinning, caping, food prep. avg edc, gross abuse associated with immature and unknowledgeable child useage and it is holding up great i think i have seen maybe a handful of rust spots on that

whereas while i am holding them both in my hands my tenacious is much more rusted (granted i cut waterbottles alot and food orenges really whatever)

so what does this all mean 1. it matters what brand you are talking about 2. rust isnt a big deal dry it off after use maybe rinse it off after dunking it in bleach ( i wouldnt recomend just leaving it after doing so cause they will rust ... i know from exp.) 3. overall they will be hard to tell apart i mean its not like s30v and 8cr here they are pretty similar i would say consider rockwell and overall dont worry about it

if i had to lean to one side i would say sog's specifically aus 8 cause it is stupid tough (although i havent put my 8cr through the same for a fair test and i think it would do well) i mean i have used it to pry, as a screwdriver (more than once i mean i ton of times) and its fine i did get one chip out of it but it was small and was not related to being a screwdriver as it was right infront of the pivot about 11/2 in away from where the edge was a screwdriver and has since been sharpened away so nbd

dont worry the better question is which knife are we referring to vs which other knife cause i will save you the trouble if its a sog twitch II buy it if its a flash buy it if it is ANY spyderco buy it cold steel meh i guess i havent really used it that much but yea buy it especially the voyager
 
I prefer Aus-8. I've found that AUS-8 is less prone to chipping by a long shot than 8cr13MoV (at least, in the knives I've used), so that is a big plus in my book.
 
knarfeng said:
Sal Glessar said that in their testing the edge retention is the same when both are hardened to the same hardness. He has also said that AUS8 does a bit better in salt spray tests, indicating that AUS8 has a bit better corrosion resistance.
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Interesting... When I first got my Resilience last year (8Cr13MoV) I had it clipped to the inside top of my winter boot. The knife was subject to about 8-10 hours of a very warm\moist mildly salty environment. I pulled the knife out in the evening and noticed tiny specks of surface rust, which was easily removed. The knife was new and I was too busy fiddle farting around and neglected to give it a light mineral oil coating. I just remember being surprised at how quickly the corrosion started. But my lack of maintenance and the conditions were perfect for corrosion.
 
davek14 said:
"AUS8... the 1095 of stainless"

(Quote stolen from somewhere on here)
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Might be me. In my testing, if hardened to equal hardness, they perform about the same in edge retention.
 
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