what the difference between Bohler N690 and N695?

[Juramentado]

Does anyone have any experience with both of these metals? Whats the difference between the 2, performance-wise? Edge holding, etc.

 

[Larrin]

N690 is essentially a modification of N695 (440C) with added cobalt. The cobalt increases the potential hardness and a couple other things.

 

[ciulkwens]

as Larrin said
N695 its equal to 440C
N690 is a little better in performance IMO

 

[knarfeng]

N690 is essentially a modification of N695 (440C) with added cobalt. The cobalt increases the potential hardness and a couple other things.

It has a touch of Vanadium as well. Enough to act as a grain refiner.
http://www.bohler-edelstahl.com/english/b_1853.htm

You can download a full data sheet from the link above, but here is the synopsis from that page:

Martensitic chromium steel with cobalt, molybdenum and vanadium addition. For tools and components which can be hardened to very high hardness levels. Surface finish required for good corrosion resistance: fine ground or polished.
​

Composition:
C______1.07
Si______0.4
Mn_____0.4
Cr_____17.
Mo_____1.1
V______ 0.1
Co_____1.5

I prefer N690 to 440C. (And I count myself a fan of 440C. )
I found N690 to take a wicked sharp edge, the equal of what I get with VG10.
I find that edge retention rivals that of 154CM and VG10.

N695 is straight 440C

 

[ronie1988]

N695 has Added Copper and N690 has Cobalt.....properties and all temperature, density stuff are almost equal, so is the hardness. If you want more data see Bohler-Uddelholm website and download datasheet of both alloys.

 

[Darrin Sanders]

This thread is 6 yrs. old.

 

[Nathan Akins]

now 8

 

[Jonslaught]

now 8

Actually it was still 7 when u posted. Now its 8.

 

[Hale Storm]

Now it's 9