heat treating spring steel

[drewsbow]

I hammered out a knife from a leaf out of a truck and need to heat treat it. Could someone recomend a good way to do this ? Thanks Drew

[Jeremy]

Depending on the age of the truck, it's likely 5160 or something very close to it.  5160's nickname isn't OCS for nothing! (Old Chevy Spring)

You'll need to normalize it a few times.  Then take up to critical, quench in oil, and temper at 350-450 degrees depending on what your using the knife for.

[drewsbow]

Thanks Jeremy , Thats the way I did my file knife I'm working on . Thanks again. Drew