How hot to retemper steel?
I have a blade here that has some rainbow streaks on it, presumably from getting too hot on a buffer. I've been curious about taking a blade like this, getting it hot and oil dipping it... That would be the process to re-temper, correct?
How hot would I need to get the metal? I currently have the means to get it to somewhere between 750 and 800 degrees farenheit with very even heat. I'm sure I can heat it beyond that, but not nearly as evenly.
How hot do I need to get this thing?