1095 spring temper

[jrhart50]

I would like to know what is the heat and lingth of time to temper back sprink on a slippy.
Thanks for all help J R Hartman

 

[Stacy E. Apelt - Bladesmith]

600F for two hours...twice.
Stacy

 

[Bill DeShivs]

I make hundreds of switchblade leaf springs. I temper with a propane torch by bringing the spring to even cherry red and quenching in canola oil. I file check for hardness. I then clean the decarb off and temper to just past blue. I have never had a spring failure. I think you guys make way too much of double tempering, double normalizing, etc. It's simple carbon steel and was worked for a couple hundred years by eye.