Wuyeah i read the page you posted and i bookmarked it so i could go back and study it.
but from what i read it was a sales write-up,,read the clames again,,what is claimed could be said about 440C at that Rockwell.
i know it sounds like i am being piss-ee but i am searching for answers not trying to tear them down,,like i said I like the look of them,,but a knife maker doesn't buy a lot of knives,,he makes his own.
so thank you all in advance for this education.
Hey, it's entirely legitimate to ask questions. In fact, it's better to be doubtful and ask questions than jump straight into something and be disappointed. As far as Busse is concerned, though, they are the "real deal" - extremely tough knives for hard use, with a remarkably fine warranty.
As for the claims on the "INFI facts" page, yes, they are intended to market the steel - that's what a business does, markets their product. The claims made, though, are not, "marketing BS".
You said that what is claimed about INFI could be said about 440C at that Rockwell. In saying that, you are simply completely and utterly
wrong. Well, of course it's true that anyone could
say anything about 440C at any Rockwell, but just because someone says something doesn't make it the
truth. Let's look at some of the things Busse claims about INFI, and see if they could really be
truthfully said about 440C at any Rockwell, let alone at 58 - 60.
1) "In one of our performance tests, we bend a Battle Mistress 35 degrees in a vise and it springs back to true. Why would we do this? What does it prove? What is the benefit to the customer? Not only does this test demonstrate the enormous toughness and lateral strength of an INFI blade but, because our hardness is homogenous and not differential, it demonstrates the amount of lateral strength and "spring" of INFI all the way to the edge. That means that edge of the blade will possess this same toughness. INFI is the only knife steel ever tested that has achieved such high levels of lateral strength with a homogenous hardness of 58 - 60 Rc. No other steel has even neared this performance level."
- Could you bend a 10" bladed 440C knife hardened to 58 - 60 Rc to 35 degrees without breaking it or getting it to take a set? No, you absolutely could not. So this could not be said about 440C. It can be said about INFI, though, because you can in fact do this with INFI.
2) "INFI represents what I have always dreamed of in a knife steel. Tougher, by an enormous margin, than any other steel I've ever tested. Unparalleled edge holding under high impact and in cutting tests. Shock resistance that begs you to bring it on."
- Could you say this about 440C? Is 440C tougher than most other steels, even basic carbon steels? Let me answer that: hell to the no. 440C is NOT tough by any measure, compared to steels like 1055 or 5160. But INFI is tough. Does 440C have great edge holding under high impact? No, 440C falls apart under high impact at 58 - 60 Rc. Does 440C have good shock resistance? No, but INFI does.
3) "So, although INFI is not technically a stainless steel, it is certainly not a rust aggressive steel."
- Could you say this about 440C?

440C is a stainless steel, so I guess you couldn't say that it is not technically stainless.
Well, now that we've established that the INFI facts could not be claimed about 440C without lying like a politician, I figure the facts speak for themselves as far as INFI is concerned. It's really an excellent steel for hard use knives. That makes Busse knives worth the money for me.