How does H1 prevent rust?

B

bchan77

Joined
Dec 6, 2007
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I would like to know how does H1 prevent rust by reason of its composition, does anyone know?
 
I understand it's made without carbon. Nitrogen is used, I'm sure a detailed exclamation will be posted.
 
Excuse me, I don't even know what the words Martensite and Austenite mean, can you elaborate for the technically challenged? :p
 
Lycosa said:
Wouldn't a Titanium blade be the answer??
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Only if you want to spend outrageous sums of money for a blade with sub 420JS edge retention. You can't even get 50Rc out of a betatitanium blade, H1 (on the edge) has rc'ed out at 59, 61 for serrations.
 
There actually are titanium knives out there, but it's a specialized market (primarily Navy Seals or others who have a need for a zero magnetic signature knife). As Josh noted, edge retention is so bad that they're really not practical for general usage.
 
They also have plastic knives that are zero-magnetic but I guess they would be cheaper for the seals and who cares when it's our tax money? =p jk

As for H1, it's essentially rust proof. I say "essentially" because there have been cases of spotting at the logo and earlier models as the components werent titanium but stainless steel.

For all intensive purposes, H1 is pretty much the best "rust proof" steel on the market. Couple this with the fact that Spyderco makes knives in it gives almost an an endless range of cutting tools (Fixed blades, Hawkbills, nasty serrations and keychain knives, etc).
 
Snagblade said:
They also have plastic knives that are zero-magnetic but I guess they would be cheaper for the seals and who cares when it's our tax money? =p jk

As for H1, it's essentially rust proof. I say "essentially" because there have been cases of spotting at the logo and earlier models as the components werent titanium but stainless steel.

For all intensive purposes, H1 is pretty much the best "rust proof" steel on the market. Couple this with the fact that Spyderco makes knives in it gives almost an an endless range of cutting tools (Fixed blades, Hawkbills, nasty serrations and keychain knives, etc).
Click to expand...

But having a plastic knife isn't as tactical as saying it's made out of Titanium. :rolleyes:

There are parts of the H1 (Salt) series knives that aren't titanium, but a better stainless steel. There are stainless steels out there that are just as stainless, if not more stainless, then H1, they just aren't any good at holding an edge.
 
they make the stainless steel components for housing expensive electronic and digital monitoring equipment that goes on the offshore oil and gas rigs here in Louisiana out either 416 or 416L, between the salt water and year round high humidity that stuff doesn't budge. NO RUST.

On to the titanium knife thing, while H1 will undoubtedly hold an edge better, don't sell them short until you use one, they will surprise you, and when it comes to a material that will simply not corrode beta ti is your answer. There is only a few things that will actually damage that material other than an ACT of GOD or an Atomic event. The people at Mission once posted a list of like the few things that would corrode beta ti and it was high grades of industrial acids most of which you had to have suit and breathing apparatus just to be around or would peel off your skin and singe your lungs.

They use some kinda heavy duty industrial acid to clean beta ti parts during manufacturing and while H1 is far superior in holding an edge to beta ti, beta it is far superior in regards to overall toughness and corrosion resistance.
 
There are many steels that don't rust, but very few that have the characteristics of a good knife blade. Whether the edge-holding of a titanium blade is adequate to your needs is something each much answer for himself. How much corrosion resistence you need is a similar question. Since I don't spend much time swimming in acid or sitting in the chlorine tablet storage drum, I'm pretty sure H-1 is good enough for my needs. As often as I sharpen my S90V Military, I doubt I'd be happy with the edge-holding of even beta titanium, but that's just me.

Sorry I can't help with the mechanism of corrosion prevention in H-1. It has been thirty years since I studied that sort of thing, and I don't think H-1 was even possible back then.
 
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