Rockwell Hardness Question

[Outdoor Gear Dad]

So where you tested again and get good readings ?

No not in the same location. But I’m confident now after speaking with the maker.

 

[Natlek]

I have never heard of differential heat treating with s35vn.

Now you heard I wonder how this can be done and why ?

 

[Willie71]

Now you heard I wonder how this can be done and why ?

I don’t think it can be done, at least not for any advantage in performance. With the temps and soaks needed, there is no way I can think of to pull this off effectively.

 

[Josh Rider]

Everything I’ve seen so far with torch straightening, it seems to have a very negative effect on the microstructure.
I’ve had similar cracks and negative outcomes trying to leave part of a tang exposed trying to quench something larger than my quench plates.
My point is, having a steel like that with hardened portions that are random sounds unstable.
I know it works with simpler steels, but like Warren, I’ve never heard of differentially hardening a high alloy like that.

 

[milkbaby]

^Josh beat me to it, I was wondering if torch straightened...