Making Test Coupons

CDHumiston

KNIFE MAKER
I've been doing some heat treating on stock removal blades heated in my forge and quenched in Canola oil. I have been getting pretty good results when testing HRC with my tester. However I am not breaking the blades to look at grain structure.

I want to make some coupons to do the testing on and want to make sure I do it right. From what I have read I should break the coupons and test them after heat treat but before tempering. Is this correct?
 
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