Blade Steels

digdeep,

To dub Infi as the best would imply it is best in every possible way and I understand that it is quite amazing on many levels but.....How is it for corrosion resistance?;)
I've heard that H1 preforms much better in that regard.
 
Of course H1 is king of corrosion resistance; it's physically impossible for it to rust.

INFI is surprisingly corrosion resistant for being a non-stainless steel though. Just wipe the knife down after use and clean it properly once in a while and you shouldn't have any problems. I treat all my knives that way, stainless or not.

If you spend a lot of time in or near the ocean H1 is probably a better choice though :thumbup:
 
digdeep said:
Have to agree with Morimotom - Infi is insurpassable for all possibe tasks. Please check with Busse Combat or the company store. Show me a better steel and I will eat it! :eek: :thumbup:
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No offense, and I'm not sure if there was some sarcasm involved in your post, but such a claim is rather ridiculous.
 
thombrogan said:
That's more something Cliff Stamp would say. He's a physicist in Newfoundland and I'm a noc tech in the USA. My sister-in-law is from there, so maybe that's close enough?
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I consider myself flattered.

I'm an engineer. This is how I approach any question. Determine the desired result, then figure out what it will take to deliver that result.

You and I said the same thing. I'm just wordier. (My wife tells me that a lot.)
How's this version?
The best steel for a knife will depend on what you want to use the knife for.

Regards,
Knarfeng
 
digdeep said:
Have to agree with Morimotom - Infi is insurpassable for all possibe tasks. Please check with Busse Combat or the company store. Show me a better steel and I will eat it! :eek: :thumbup:
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I am not going to let you eat my BG-42 knives. Try taking an INFI in salt water or any water! It isn't stainless. Don't take it in the jungle either unless you got something to put on it.

From my research INFI is D-2 on steriods. An excellent blade steel that gets and holds and edge and is tough, but not an all around steel if it fails one point.
 
sog said:
I am not going to let you eat my BG-42 knives. Try taking an INFI in salt water or any water! It isn't stainless. Don't take it in the jungle either unless you got something to put on it.

From my research INFI is D-2 on steriods. An excellent blade steel that gets and holds and edge and is tough, but not an all around steel if it fails one point.
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According to Busse Combat, INFI faired better than ats-34 and D2 in salt water spray tests ( http://www.bussecombat.com/infi/ ).
Of course, all I have to go on is the claims of Busse Combat, and a manufacturer isn't likely to bash their own product. But so far every independent test I've seen has backed up Busse Combat's other claims, so I believe what they say about INFI's corrosion resistance. I have never heard of anyone having problems with their Busses rusting either.

Even if it was no better than ats-34 or D2 when it comes to corrosion resistance, that's plenty good enough for me. I guess I'm just not that worried about my knives rusting, as I've never experienced it :)
 
Ikarus said:
Of course H1 is king of corrosion resistance; it's physically impossible for it to rust.

INFI is surprisingly corrosion resistant for being a non-stainless steel though. Just wipe the knife down after use and clean it properly once in a while and you shouldn't have any problems. I treat all my knives that way, stainless or not.

If you spend a lot of time in or near the ocean H1 is probably a better choice though :thumbup:
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if the steel has any iron in it, it will eventually rust wont it? but im no metallurgist, so may be waaay off base here.
 
I agree with those who say that different blade steels perform better at different tasks.
I own blades made of M2, D2, SK-5 Carbon, ATS-34, VG-10, AUS-8, AUS-6, AUS6A, 0170-6C, S30V, 5160, 440, 440A, 440C, and probably many others I'm forgetting.
I still really don't put too much thought into which knife I'm grabbing for the day. But I'll use stainless for fishing, Carbon for chopping, etc.
 
knarfeng said:
How's this version?
The best steel for a knife will depend on what you want to use the knife for.
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Oh, well, then S7 tempered to about RC57 with a standard heat treatment and M2 hardened to about RC65 with standard heat treatment are the best.
 
hardheart said:
or just some 52100

oh no I didn't
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That stuff's only for if you want a blade that will take very narrow edge with a high level of polish at hardnesses ranging from the mid 50's to the mid 60's on the RC scale. If you want a knife that'll knock down a small forest, cut soft metals, and still slice paper, knock your socks off, but I want more.
 
Padawan said:
H1 utilises nitrogen rather than carbon in its composition, and therefore doesn't rust. Period. It's great stuff, and I love my Spyderco Salt 1.
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I also thought that iron was the reason. Maybe this should be a new thread, but how does carbon make steel rust, and why doesnt nitrogen do the same thing? I'm interested in the H1 Spyderco's just for the hardness of the steel, since I am landlocked and have no real need for super corrosion resistant alloys.
 
IMHO SRS15 and 110x18MShD performs better then INFI. I did not run any formal tests but just by using it have this impression.

Thanks, Vassili.
 
me2 said:
... how does carbon make steel rust
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It forms chromium carbide and thus the chromium is no longer "free" in the steel and thus can not form the passive chromium oxide layer to protect the steel. This is why high carbon stainless steels in general are far less corrosion resistant than low carbon stainless steels of similar other alloy content.

-Cliff
 
OK, Thombrogan no longer wants to know. I still want to know what rrg991981 wants to use the blade for. Then I might have a personal opinion of best steel for it. (which opinion will surely be torn apart by 10 other individuals, each with their own favs and each with reasons for their choices which will likely be at least as valid as mine.)
 
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