INFI Composition question

bigbcustom

bigbcustom

Joined
Dec 20, 2005
Messages
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Can anybody tell me what steel is INFI? or it's composition? I can see that SR101 is modified 52100, but I can find no information on what exactly INFI is. Modified 3V? some other steel? I am very curious.
 
Thanks for the link Athame. I am still wondering what the steel is. I have heard that a long, labor intensive heat and cryo treat can make D2 1000% better than what we see in most knives....I guess I need to buy a Busse and take it to the metallurgy dept at The School of Mines and have them check it out for me. I am guessing that the heat treat more than the composition is what's responsible for the toughness of INFI, but I am far from an authority on steels.
 
Thanks for the link smithsnoh...looking at that, I would think (without knowing how well it obviously performs) that INFI was Ho Hum knife steel. Obviously things combine in ways only known to the gods and metalurgists....I would guess it has to be mainly the heat/cryo treatment that does the magic. looking at that table and thinking about other steels makes you wonder what could be done with N690 in the heat/cryo treatment area.
 
INFI steel - .50 C, 8.5 Cr, .36 V, .95 Co, .74 Ni, 1.3 Mo, .11 N There are many myths about INFI but the composition isn't one of them !!!!

Cheers,

André
 
Obviously things combine in ways only known to the gods and metalurgists
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Yeah. In the end, the story behind INFI may turn out to be something real simple --- probably just passed on by the Elven Kings to Jerry Busse or something. :)
 
if you do a search in the forums, you will read a lot about it. :jerkit:
 
smithsnoh said:
Howdy, Bigb
Try this link. The composition of this proprietary Busse steel is here. The heat/cryo treatment regime, of course is not.

http://www.physics.mun.ca/~sstamp/knives/blade_materials.html#stainless
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I don't know how old is the link but I've picked an error about a steel.

One steel is labelled as INOX, and described as a particular steel.
Actually "INOX" stands for "Inoxydable" (non-oxydable) which is the French (maybe the same word in swedish, but considering the victorinox example it is likely realted to French speaking swiss) for "stainless", it doesn't refer to a particular steel.
 
Ravaillac said:
I don't know how old is the link but I've picked an error about a steel.

One steel is labelled as INOX, and described as a particular steel.
Actually "INOX" stands for "Inoxydable" (non-oxydable) which is the French (maybe the same word in swedish, but considering the victorinox example it is likely realted to French speaking swiss) for "stainless", it doesn't refer to a particular steel.
Click to expand...

"INOX just means steel in swedish. The composition is very similar to 12C27mod having a slightly higher chromium and moly content which will act to increase corrosion resistance though decrease hardness."

i beleive he is refering to the steel that is used by victorinox in their swiss army knife lines, a steel that is not specifically named. when you see "surgical stainless" on a knife, it can mean any stainless steel, not refering to anything specific. in this case i beleive he is being specific to victorinox's steel choice, inox refering to the company, rather then the "type" *stainless, high carbon, etc* of steel they use.
 
A while back there was a bit of ho-huming from a guy convinced INFI was just a common shock grade steel with some small alloying variance. That was mostly debunked, but looking at it from that viewpoint it makes some sense. Infi's claim to fame is its toughness, shock steels are about as tough as you get in a steel of reasonable hardness, and infi due to its specific alloy and heat treat can be made harder than most without suffering a huge drop in durability.
 
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