Aus-8a

J

Joseph Hooper

Joined
Aug 1, 2011
Messages
103
so......im pretty pissed....i bought myself a cold steel ti-lite 4" with the zytel handles...at first i was really happy with it...not the biggest fan of zytel (i actually prefer G10) but it was whatever...so just 30 minutes ago i got bored and decided to go to town on a card board box and attacked it brutally.when i finished i noticed some nics in the blade i was like what the hell...so i turned the box around and attacked the other side with my crkt m21 14sfg. and the blade is still flawless...i guess its the 8cr14 steel. im kinda turned off of aus8a im going to try the cold steel grivory paradox...and go to town on a box and see what happens...if there are nics in the blade im staying away from aus8a permanently. Anybody else have this problem?
 
Not a very good way to judge steel performance.
 
Cardboard can hold some pretty nasty stuff as far as knife edges are concerned.
 
But you came to a conclusion, and in your eyes believing something was wrong.

The steel could be exactly the same on each knife, even the same hardness, and you would be shocked how much edge and blade geometry will affect the performance of both. The CS could have simply had a thinner sharpened bevel allowing more deformation because it is not as well supported. Many variables...
 
Look at it that way ;-) knives get dull so we could sharpen them by use of the latest and the greatest sharpenning system ;-)
 
very true knifenut...and by doing this i have learned that this knife is not for me...i want something with better edge retension....and if cardboard is gunna actually remove pieces of metal from the blad and bend some backwards..then thats not the knife for me
 
what kinda cardboard is this and what do you mean by attacking the cardboard? the ti-lites i have came with some of the sharpest/most accutest edges of all the stock edges i have gotten.

Personnaly I have cut a lot of cardboard and never had it take off peices of the edge from any blade. even in cold steel's videos where they hack thru wood, the edges seem to hold up pretty good. seems quite odd.

Please post some pics of the edge and the cardboard box you attacked.
 
I don't doubt your experience but it's too anecdotal to base any conclusions on. Cardboard is nasty to any steel, I've had it chip several blades of mine, all 'better' steel than AUS8A, which should actually prove fairly tough.
Try cutting a hundred slices with comparable knives (edge geometry) with different steels, then you'll have a firmer base.
 
Cardboard uses clay as a binder, and tends to accumulate dust, dirt, and grit on the exterior of it. As a result it's almost like cutting dirt. Cold Steel puts a very acute angle on their edges from the factory. Try widening that angle to a more conventional 40-degree inclusive and see what happens. ;)
 
Wow! I'm as shocked as you and also think cardboard should not be capable up chipping out an edge. Yea, let us know how the Paradox fairs. If you find the same result, my number of AUS8 bladed knives will definitely remain at ZERO
 
Never had a problem with AUS8 - but have never "attacked" cardboard. Have cut a bunch of it though...
 
zignal_zero said:
Wow! I'm as shocked as you and also think cardboard should not be capable up chipping out an edge. Yea, let us know how the Paradox fairs. If you find the same result, my number of AUS8 bladed knives will definitely remain at ZERO
Click to expand...

Sounds like your real problem is with the cardboard manufacturer--not the knife companies using AUS8 in their knives. I've got plenty of pieces with that steel, and they're all stellar performers. As philwar mentions, cardboard is rough on ANY steel for the reasons I outlined above. How many steels are there out there that you think can survive cutting dirt unscathed? ;)
 
Yeah, edge angle and edge retention are two different aspects of the knife. A thinner edge cuts better, but can see more damage, especially if you're attacking something. Each strike may not go in perfectly straight, and the edge is what will suffer, not the cardboard, well the cardboard is garbage in the first place.
 
I'd sharpen the knife and use it some more. Many times on blades, it takes a sharpening or two to get down to "good" steel. Production knives are usually sharpened on power tools and improper technique can cause the metal on the very edge to lose it's temper just a tad. Sharpening the knife gets past that softer steel and into the hard area of the blade. It's common on Mora's especially.
 
well i dont have the box anymore i threw it away...it was just a plain old cardboard diaper box...and by attacking i mean i just wet ape shit on it like on deadliest warrior where the guys go ballistic on the gel torsos...well my gel torso was a card board box....im learning as i go along...im young and im new to the knife community and knives themselves
 
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