fallkniven 3G steel

[lutejones]

Hello sharpening masters and aprentices.
I've been sharpening for more or less a decade now, and I can achieve pretty decent edges, always freehand.
I have sharpened a lot of diferent steels, from simple opinel carbon to spyderco S30V, with good results in every one of them, with little inconveniences like wire edges on VG-10 and things like that.

Today I want to ask you about fallkniven hardest steel, the 3G hardened to 62 Hrc.
The only way I can get this thing really sharp is by holding my diamond-ceramic stone between my thumb and my middle finger and sharpening "in the air", and then stroping to treetop sharpness.
When I use large benchstones something goes wrong, the TK3 folding knife comes out of the DMT extrafine reasonably
sharp and then I switch to japanese polishing stones... and away goes the edge. I know it's not the burr.

My theory:
keeping the angle is more dificult on the bench stones than sharpening in hand, plus the hardness of this particular steel and the somewhat slower cutting of the japanese stones results in rounding the edge.

What do you think? Did something like this happend to you??
thank you, looking foward for your inputs
Mateo

 

[mete]

The 3G actually refers to being a laminated blade. The core is SGPS [ special gold powdered steel ] Which is a very fine knife steel ,among the best. I never polish my blades but usually freehand sharpen with a 1200 grit diamond .Maybe you use too much pressure ? Japanese stones , are they really appropriate for such a steel ? Is the higher pressure used destroying a good edge formed by the diamond ?

 

[lutejones]

hey Mete,
I tried both ways with good pressure and lightly too. when doing it light it seem to take forever and when using much pressure maybe is what you said.

 

[sodak]

This steel sharpens well for me on Spyderco ceramics, and haven't had any problems getting it screaming sharp. I thinned the edge out to 20 inclusive, and use a very light touch.

 

[rpttrsn]

I have had my Fallkniven with 3G blade steel for about 9 months now. Have added a clip and Desert Ironwood scales. It one of my favorite EDC knives. The steel has only needed stropping with diamond spray .50 and .25. Holds a great edge. If it needs more attention I would also try the Spyderco system down to the UF.