440C resurgence?!?!

[A. G. Russell]

AUS-8 is also mass produced by random companies, and has huge ranges for allowable percentages of alloy, quality is never for sure, and I doubt they use the highest quality of manufature.

Please, I buy lots of knives with AUS8 and have always thought there was a single source of this steel. Would you be kind enough to supply me with the names of the random steel makers you speak of?

I have always found it to be very uniform in behavior and quality. It will take a better (sharper) edge than any other stainless of my experience. It is true that it will not hold an edge as long as properly heat-treated 440C.

 

[Larrin]

Please, I buy lots of knives with AUS8 and have always thought there was a single source of this steel. Would you be kind enough to supply me with the names of the random steel makers you speak of?

I have always found it to be very uniform in behavior and quality. It will take a better (sharper) edge than any other stainless of my experience. It is true that it will not hold an edge as long as properly heat-treated 440C.

Because I've never seen named a single producer for the steel, I can only suppose that there is more than one, hence why I call them "random." I would love to know who makes it.

The composition sheets that are abundantly available for steel (including AUS-8) are what shows the large ranges in composition, it may very well exhibit uniform behavior, I've never heat treated it. From what I said, it should get a sharper edge than any other stainless, I don't know if I mentioned it, but properly made AUS-8 should have finer carbides than CPM steel.

The only reason that I don't like AUS-8 is because there is one steel that is better: AEB-L. It's production is much more consistent, etc. They have fairly similar compositions, but I believe that AEB-L's is near perfect, without the large ranges of whatever the company wants to make.

Edit: I shouldn't say that I don't like AUS-8, I do like it. A.G. and others are taking what I'm saying and trying to interpret me as attacking the steel. I'm just trying to provide information.

 

[jim n]

I have 3 different mini-grips, my first was 440c. I loved this knife, it got very sharp and cut great, but I was having to touch up the blade every week. Lightly, but weekly. My next grip was D2, it also was amazingly sharp, and held the edge for what seemed like forever, but when I had to touch it up it took easily 4 times as many passes on the sharpmaker as the 440c. It also got amazingly sharp, it is probably my favorite of the 3. My last purchase was an RSK grip in S30V, it was sharp out of the box and held the edge forever, but I have not been able to get that initial edge back on it. Don't get me wrong, it gets sharp, but not like I remember out of the box. In summary, the D2 stayed sharper longer, but was a pita to get sharp. The 440c was easy to sharpen but lost the edge fastest, the S30V was in the middle, held the edge long and touched up easily. Mind you, all 3 have slightly different edge geometry...

 

[smegs]

I have always found it to be very uniform in behavior and quality. It will take a better (sharper) edge than any other stainless of my experience. It is true that it will not hold an edge as long as properly heat-treated 440C.

That's been my experience also. It resharpens easy and is fairly tough. I can get a eye opening edge in a short amount of time on AUS8. Whenever I give a knife to someone where the sharpening will fall to me, it's always AUS8. Saves a lot of work and everyone's satisfied. Especially me, from a price point and maintenance point.

 

[A. G. Russell]

I have waited for someone to post Aichi Steel as the sole maker of The AUS series of steels. Seems not. So here it is.


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1. 愛知製鋼
http://www.aichi-steel.co.jp/pro_info/pro_intro/stick.html
向上させたものです。AUS6、AUS6M、AUS7、AUS8、AUS10、AUS10Mは、さらにC量を増加させ、バナジウム(V)、モンデブリン(Mo)、硅素(Si)などを添加して、硬さ、耐磨耗性、焼戻し抵抗性などを一層向上させた鋼です。 AUS6 -. . .

2. 愛知製鋼
http://www.aichi-steel.co.jp/pro_info/pro_intro/stainless_characteristic.html
向上させたものです。AUS6、AUS6M、AUS7、AUS8、AUS10、AUS10Mは、さらにC量を増加させ、バナジウム(V)、モンデブリン(Mo)、硅素(Si)などを添加して、硬さ、耐磨耗性、焼戻し抵抗性などを一層向上させた鋼です。 AUS6 -. . .