Hi guys,
I've done all the searches I can think of and haven't found any direct instructions on easily heat treating 1045 steel without being able to directly measure high temperatures, so can anyone offer any advice on doing it properly sans thermocouple/pyrometer?
I've made a hammer and followed the only basic hardening/tempering instructions I did find, which simply said to heat to a nice cherry red, quench 1" or so of the face end, polish quickly and wait for the blue color to develop, then quench fully. Well that didn't work worth a xxxx LOL The specific directions I found call for heating to 1500F then allowing slow cooling, reheating to 1500F then quenching, and lastly heating to 600-1200F (weirdly broad?) with a final slow cooling. Of course I understand what the steps are, but just don't have the means to measure such high temperatures... help!
Thanks
Matt