help s30v

looking at my crucible data shet i would say use a different steel


quench from 1900f and temper at 1000F should put your hardness at 57 Rc and quench from 2000f with temper of 1000f is 60 Rc

hope that helps some but i dont see on my charts anyplace that you should/ could hit Rc 50 ish
 
With all that V and Mo it has secondary hardening so you'd have to temper at 1100-1200 F to drop it down to HRc50.A simpler steel such as 440C would be more appropriate.
 
Even better would be 410 or 420, you can use the low temper for good corrosion resistance.
 
Just like blade steels, there doesn't seem to be a perfect steel for backsprings.

-17-7 ph makes a great spring with execellent fatigue strength. However, I've had wear issues with it. It seems to want to gall where it rubs the tang of the blade. (I've seen this with D2 and CPM 154 blades.

- I've had fatigue issues with springs made from most of the popular blade steels, 440C, ATS, D2, etc. Springs sometime break after a few months usage.

I'm currently using 420 and it seems to be working. (so far at least).

Anyone out there who has the wisdom of experience who can provide a few pointers?

Thanks,

jim
 
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