"And now I have one less dream" what an ending...Same. In case you (anyone) don't know, you can turn on closed captions in youtube and change the settings to auto-translate what he's saying.
Did you see today's video?
Apparently in soviet Russia, rebar is made of tool steel.
Zero research on my part, at least according to my memory, but among "the things I think I know" is the knowledge that rebar is about the lowest carbon steel there is, and is that way by design because concrete needs to be able to expand, contract, flex, etc, without the internal support shattering. I assumed it would not be able to harden with any quenching medium. If I was not familiar with this channel I would waving the B.S. flag about the whole thing, but I've never seen him sell snake oil so I'll just go with "I don't know." Maybe that's not actually rebar he's working with, but some other metal made by the same process. Or I'm just plain wrong about rebar.I've noticed he does a lot of hardening with water as a quench medium.
Maybe Rebar is similar to the W-1 family of tool steel?
I may have to research this.