Heat treating RWL-34

[JohanB]

Hey all,

Im gonna buy some RWL-34, and I need some help with the heat treating.
I have a heat treating oven, digitally controlled. But i must manually adjust the temp every time.
Since I don't have liquid nitrogen or dry ice, can i still have a decent blade?
Do i need HT foil?

I'd be grateful for any help
Thanks,

JB

 

[mete]

At those high hardening temperatures oxidation and decarburization occur rapidly so foil or vacuum or inert atmosphere are necessary .Liquid nitrogen is not necessary but it would give you 1 to 2 points higher hardness. Plate quenching is the easy way to do it .Search this forum for "plate quenching"