Darrin Sanders
Moderator
I should know this but I don't. The data sheets that I have stop at or around 52-55 RC. I'm working on some springs in A2 & AEB-L and want to get them down to approx. 48 RC. Anyone know what I need to draw them at to get them down to that. I'll be hardening the A2 @ 1775 and the AEB-L @ 1980. Both will be plate quenched and spend the night in LN.