I hope you tempered the frizzen after hardening it.
As was mentioned, the Siler locks use a thru hardening steel and without tempering it will be brittle after hardening.
Heat up your wifes oven to about 400-440 degrees F and bake your frizzen for an hour. Then remove it and allow it to air cool.
This will produce a hardness of around HRC 58-62 which is still very hard but tough.
If the frizzen was not hardened up into the upper HRC 60's because of the quench, the tempering temperature I gave will still not soften it below the hardness I mentioned above which should give good hardness and good toughness.
Now that your frizzen is sparking nicely, the last thing you want is for the vertical frizzen to snap off of the pan cover when the flint hits it.
As was mentioned, the Siler locks use a thru hardening steel and without tempering it will be brittle after hardening.
Heat up your wifes oven to about 400-440 degrees F and bake your frizzen for an hour. Then remove it and allow it to air cool.
This will produce a hardness of around HRC 58-62 which is still very hard but tough.
If the frizzen was not hardened up into the upper HRC 60's because of the quench, the tempering temperature I gave will still not soften it below the hardness I mentioned above which should give good hardness and good toughness.
Now that your frizzen is sparking nicely, the last thing you want is for the vertical frizzen to snap off of the pan cover when the flint hits it.