David Boye Dendritic Cobalt Steel

J

jimbowie7

Joined
Mar 13, 2005
Messages
90
Hi,

Anyone know where I could get some flat ground David Boye Dendritic Cobalt Steel?

I need a piece 1.5" x 9" long.

If this isn't available -any other recommendations for a steel that is:

1. Commercially available

2. Impervious to salt water

3. Takes and holds a good edge

Thanks!
 
If you find any let me know. It was availabel a few years back. It was pretty impressive to see the 3000 cuts of the 1 inch rope. Sure left a pile of hemp.
 
Get in touch with David and ask him if he has any. In my experience he or his wife gets back to you pretty quick when you email them. Not sure if H1 steel is available to the public or not. But it would be a second choice to all the above. Only thing it has that the Boye doesn't is that it attracts a magnet whereas Boyes is non magnetic.

http://www.boyeknives.com/
STR
 
David Boye knives are not magnetic? funny.............my David Boye knife blade is as magnetic as any carbon steel blade. and if you didn't know, cobalt is magnetic.
 
Dan, before the cobalt stuff, Boye sold dendritic 440C blades, which would certainly be magnetic. Obviously, I don't know what you have, though.

I would be surprised if the new cobalt stuff would be magnetic. The micrograph makes it look as if the cobalt is a non-crystalline amorphous binder for crystalline carbides of other metals like tungsten and iron. In that case, the cobalt couldn't exhibit even mild magnetic attraction, as is the case of other "cemented carbides" like tungsten carbide lathe bits, Talonite, and Stellite.

I don't know, I'm just speculating..... :o
 
I have one of David's blades right here on me as I type. As I recall he makes two or three different mixes of the dendritic steel. One is a magnetic variety as I recall.

I'm here to tell you the cobalt alloy in my boat knife (that you can see in the link I provided above in my first post) is non magnetic. Nothing about the knife is going to attract a magnet. The whole thing is non magnetic, lock bar, blade, pins, clip and even the lock spring, which is one of the selling points I guess for a boat knife so it won't cause your navigation compass to lie to you because you caused the needle to be off or to move a few degrees due to your carry knife being too close to it when you laid out your course.
 
STR, I believe you without reservation.... :)

Iron, nickel, and cobalt are three metallic elements that CAN exhibit magnetism, but only under the right circumstances.
 
David Boye sold cast blades made from steel and others made from cobalt. The cobalt is roughly equivalent to Stellite 6B. Casting the blade produced the dendritic structure. The only blade steels I know containing cobalt are VG10 & ATS-55.

I have two knives made from materials produced by David Boye. One knife is a drop point hunter in dendritic 440C. The other is a utility knife with integral bolster and guard made from dendritic cobalt. Both knives cut very very well.
 
I am holding a bar of David's ciobalt in my hand now.I have a magnet in the other - NO ATTRACTION. The bars are 1.5X 9.5 inch.Expensive,but makes a great blade for the right use.A bear to grind.
 
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