Friday, July 24, 2015


A little bit if finish sanding to remove any obvious scratches.
Here I am going to apply the Condursal Z1100 protective paint.
This prevents oxygen from reacting with the surface of the steel at high temperatures/
Hang to dry for an hour or so.
I put the blade in the oven at 650°C and ramped up to 1060°C for a 15 minute soak.
Out of the oven and quickly going from bright yellow to red in colour.
Sandwiched between two copper plates and a little blow of compressed air.
I had the tempering oven preheated to 185°C (365°F). Two hours and cooled to room temperature. Then another two hour run at the same temperature. This should be close to Rockwell 60C hardness.


Unknown said...

Just wanted to thank you for sharing knife patterns. Not many people willing to help newbies out. I have 3 of your patterns in the works. Just waiting on heat treatment. You do very nice work.

D. Comeau said...

Thank you for your kind words. Please let us know how your knives turn out.