Tungsten carbide knife blade?

Dvin211

Dvin211

Joined
Mar 25, 2015
Messages
113
Anyone have experience with Sandrin Cutlery ?
It's an Italian knife company which makes knives out of solid tungsten carbide @ 71 HRC

http://www.sandrincutlery.com/ (I'm not sure if the link is allowed, website shows nothing for sale just pictures.)
 
I worked with Tungsten Carbide in industrial applications (diamond drill bit, huge hydrolic presses that had solid tungsten carbide anvils).

I had pieces that were laser sharp (from shattered anvils). They would cut, but also chip very easily.


I'm not sure how it would work as a knife blade, but don't drop it on any thing hard!

I'd love to try one out. But I sure would not want to sharpen it, or have to re-profile it without all the diamond lapping equipment I used to have access to.
 
Most tungsten carbide is made with TC powder which is 'glued ' together with cobalt which is done by sintering at high temperature . It is brittle !
 
I've also read Tungsten is toxic. There isn't much info on the website or facebook page. I'm thinking they must have found a way to minimize the brittleness.
 
Mind you, if it could be made unbrittle it would make one hell of a chopper being roughly 1.5times denser than lead.
 
Its essentially a ceramic, so expect ceramic brittleness... If you just slice with it on proper surfaces like ceramic knives, then its fine. But generally its limited in usefulness.
 
mete said:
Most tungsten carbide is made with TC powder which is 'glued ' together with cobalt which is done by sintering at high temperature . It is brittle !
Click to expand...

Yeah, TC binder are usually cobalt o nickel.
 
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