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 AUS8 Stainless..

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AUS8 Stainless.. - Tuesday, June 15, 2010 12:42 PM ( #1 )
Whenever I heard Stainless Steel, I have the instinct to cringe and lose all interest in a knife..

My Ti-Lite is AUS8, I dont have a problem with it but I always have the fear of it snapping on me.

How much stronger is AUS8 compared to 440?

Does CS make any folders that are made from High Carbon? Why don't they replace the AUS8 with High Carbon?

I really need to get rid of my biased thoughts on aus8, convince me
 
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sirupata

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Re:AUS8 Stainless.. - Tuesday, June 15, 2010 12:46 PM ( #2 )
i pried apart a shipping pallet with my ausa8 srk
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Ookami

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Re:AUS8 Stainless.. - Tuesday, June 15, 2010 2:08 PM ( #3 )
Aus-8 is a good steel. Easy to sharpen, holds an edge, and is resilient.

What more could you ask for?


Ookami

PS: I also prefer Carbon steels, but Aus-8 is OK.
"Heavy is reliable." - Boris the Blade
mike65

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Re:AUS8 Stainless.. - Tuesday, June 15, 2010 2:41 PM ( #4 )
Aus 8 A is the japanese name for 440 B, they are equal except for a little silicon percentage more in the japanese steel and performance is virtually equal. Carbon content is 0,75 so is a "high carbon steel"( from 0,50 to 0,75 is considered "medium carbon steel", from 0,75 to 1% is considered "high carbon steel", from 1% to 1,5 is considered "very high carbon steel" and beyond " ultra high carbon steel"). I don't see any problem with 8A since is a good steel highly rust resistent and hold a good edge with proper temper.
starfox

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Re:AUS8 Stainless.. - Tuesday, June 15, 2010 4:34 PM ( #5 )
I was helping my friend tie down a canoe to his truck.  There was a big hole in the bumper but it was filled with a very hard plastic about 1" thick.   I pulled out my AUS-8A 6 inch Tilite and started stabbing and chisled out a hole. I also pried with it.  

Total damage:  small chip on the curved belly near the tip. 
  










Fah

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Re:AUS8 Stainless.. - Tuesday, June 15, 2010 11:13 PM ( #6 )
mike65


Aus 8 A is the japanese name for 440 B, they are equal except for a little silicon percentage more in the japanese steel and performance is virtually equal. Carbon content is 0,75 so is a "high carbon steel"( from 0,50 to 0,75 is considered "medium carbon steel", from 0,75 to 1% is considered "high carbon steel", from 1% to 1,5 is considered "very high carbon steel" and beyond " ultra high carbon steel"). I don't see any problem with 8A since is a good steel highly rust resistent and hold a good edge with proper temper.


Sort of right and sort of wrong.

AUS8 (8A) is not the name for 440B in Japan. They are factually two different types of steel, there is a difference between same and similar. They are very close though in all aspects. AUS8 however has a scientifically better edge simply due to the steels smaller grain structure and composition, but really... really similar as you said. The argument of difference is like in the argument of sharpening, opinion, some feel there is, some dont. Now, I have some of each, some 440B perform on par with AUS8, and well... some 440B performs like filth compared to the same AUS8, just due to a different make and different treatment.

440 steels, AUS8, etc get a bad wrap as they are cheaper steels, and companies with crappy rep and bad heat treating give these steels a bad name.

Factually, they are really great steels for many enthusiast applications, as well as real world cuttlery applications. Heat treating has a remarkable impact on the grades of steel, hence why two makers using the same steel and even making the same blade design can often be of noticable difference in quality and efficiency.

Of course, if you talk to someone used to exotic steels sure, AUS8 sounds run of the mill cos alot of people use it, some people like to be different and have different steels even though they would have no clue as to the practical differences, and MOST enthusiasts into knives have a poor understanding of the metalurgy behind their knives (take some time to study the stuff and you soon realise very few people have an appreciation for what really goes on between the steel types).

There is a time and place for each steel, and that time and a place is also dependant on your use of the steel.

AUS6,8,10 and 440A,B,C are not the same things, but are comparable to the near same. Good steels when produced by companies who know what they are doing.

Compared to some of the cobolt steels, or infi, then sure... AUS8 looks like a joke. But the same can be said about one guy driving a highly tuned sports car compared to a run of the mill vehicle.

This is also why it pays to check where you buy these things from. I have an utmost regard for seki AUS8, I have yet to find a maker from that area that cops a bad wrap in their AUS8. I have seen AUS8 reproduced in other nations to a failing extent.

Ookami

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Re:AUS8 Stainless.. - Wednesday, June 16, 2010 12:24 AM ( #7 )
Fah
MOST enthusiasts into knives have a poor understanding of the metalurgy behind their knives


Everytime I hear somebody rave about D2 as the be all end all of knife steels my eyes automatically turn upwards toward the inside of my skull. I am glad CS did not jump on that train.

In General, CS has a reasonable steel choice with proper heat treatment.


Ookami

"Heavy is reliable." - Boris the Blade
grindermcgee

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Re:AUS8 Stainless.. - Wednesday, June 16, 2010 5:25 AM ( #8 )
The steel is not so important to me as the manufacturer of said steel. Consistency is key and plenty of good knives out there have good solid reputations. Cold Steel, for one... 
 
Many of my carry items are AUS8 and almost all are stainless. With all the new SMIII in the catalog, there will be little room for anything but CS!!

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