Nitro-B and N690?

M

mastiffhound

Joined
Dec 27, 2013
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I've been looking at some blades that use Nitro-B and N690 steels and wonder what their comparable to that I might more familiar with. I tried looking up Nitro-B here but only came up with people selling stuff or coffee or other strange things. Nothing about the steels as far as comparisons. For example how does it compare to S30V, 440C, CTS-BD1, or VG-10? Any help would be greatly appreciated and as always thank you guys in advance!
 
N690 and VG-10 is a 440C class steel if I remember correctly, though chemistry is slightly different.

Nitro-B is very similar to N680 from Bohler. I have yet to use any of the two. Closest I have used is Nitrobe-77 and 14C28N.

From the chemistry, both are good steels. Nitro-B places emphasis on corrosion resistance and fine carbides. N690 is more wear resistant with good corrosion resistance.
 
N680 is very, very corrosion resistant and holds an edge at least as good as 440C (pretty good). Benchmade uses it in their salt water rated knives and extreme conditions hunting knives. It was my choice over H-1 because it is so good in harsh environments and also holds a good edge. If Nitro-B is simlar it is a good steel. N690 holds an edge better but is not as corrosion resistant. I have knives in N680 and N690 but for outdoor use, I prefer the N680.
 
Found the comp but not one chart that would compare it to common steels we know of.
No reviews or cut tests
Nitro-B is secret it seems
 
VG-10 and N690 i find in my EDC tests are about the same . They are very good without being in the powder class.
 
Marine E7 said:
Found the comp but not one chart that would compare it to common steels we know of.
No reviews or cut tests
Nitro-B is secret it seems
Click to expand...

Gators chart that he has a link to in his signature does exactly what you're looking for...

(The post above yours)
 
mete said:
VG-10 and N690 i find in my EDC tests are about the same . They are very good without being in the powder class.
Click to expand...

This.

N690 performs noticeably better than 440C.
It performs in the same league with ATS-34, 154CM, and VG10
It performs less well the PM alloys.

Nitro B is a nitrogen containing stainless steel, capable of attaining hardness in excess of 60. Should be very stainless, because it gets its hardening from Nitrogen instead of Carbon. I would look for it to excel in edge retention rather than toughness.
http://tienda.suministrosparacuchil...s-for-knives/688-stainless-steel-nitro-b.html
Make sure you scroll past the advertisements in the center to get all the information.

Supposedly Nitro B is made by a small German steel company.
 
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