I thought you guys would like to see the reports I get for heat treatment of my Kohetsu knives. This is way more detailed than the usual info you get from most heat treaters and they're very serious about it. They take several random samples from the steel they cut and chop up the blanks and perform this test not only on the core steel. Their heat treat equipment is in a room that looks like a lab with microscopes, heat treat testers etc. They told me not to take pictures in there.
Many smaller blacksmiths that do their own heat treatment don't test at all and just give you a range that is a guess based on a test they did years ago. With these Kohetsu knives, I get a report on every batch they do.
We're shooting for 63 HRC on these in general and we can move that hardness up or down based on performance characteristics of the steel.