Ed - one of the things that I have underway (not complete yet) is making a dogbone from the same .005" strip to do hardness testing as well as tensile testing after each step starting with raw material. Hopefully, I will learn something there.
At what temperature should the clock start ticking...
I have what amounts to essentially a .005" thick spring made from 17-7 Condition A being heat treated at a secondary supplier to Condition RH950. For years, we have had no issues, but "improvements" over time have deteriorated the heat treat. In the same lot of parts, we are seeing both...
