Friday, July 24, 2015

KN16 PETTY 160mm - HEAT TREATMENT

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.

2 comments:

  1. 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.

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

      Dan

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