420-V heat treat

[Rob Simonich]

I just got an order of 420-V fom our own Ed Schott and havent bit into it yet. What is the best heat treat profile for this steel? I have the Crucible specs but have found their specs to not nesissarly be the best for knives. They are more geared for tooling. So Darrel, Ed, and whoever else has experiance with 420-V, what profile should I use?

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www.simonichknives.com

 

[tom mayo]

i think your right side looks the best... by the way...want to ht some 420v for me????

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http://www.mayoknives.com

 

[Kevin Wilkins]

Peter Herbst has a lot of experience with CPM powder metal stainless steels. He recomends RC 58 for knife blades. I thinks you will get best result with a vacuum furnace.

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www.wilkins-knives.com

 

[Edward R Schott]

Try this.
Foil wrap:
put in a cold furnace heat to 1550F hold for 15min, ramp up to 2100F hold for 20min.
Air quench to 125F-150F or interrupted salt to 1000F
1st temper 600F 2hr
freeze treat -120F -320F -320F for the best response.
2nd temper 575F 2hr
3 550F 2hr
this will get you around 58RC(+-)



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Edward Randall Schott
Knifemaker
www.angelfire.com/ct/schottknives/index.html
edschott@javanet.com

 

[Rob Simonich]

Thanks guys. Tom, I will let you know if I can get my controller to read that high, it currently only goes to 2000, but may be an easy fix. Otherwise I will have to send it off same as you and that will really upset me as I am a control freak! Thanks for the profile Ed!

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www.simonichknives.com