3V Tempers

[Nathan the Machinist]

the high temper (SHH) leaves a lot of potential on the table, but doing the low temper is not fool proof either. So always test your process, make no assumptions.

And be aware, rockwell hardness testing doesn't tell the whole story.

this illustrates the difference between industry standard and fully tweaked 3V: https://www.youtube.com/watch?v=6imZ4Vo8iwA

also:

 

[Tkrocky]

the high temper (SHH) leaves a lot of potential on the table, but doing the low temper is not fool proof either. So always test your process, make no assumptions.

And be aware, rockwell hardness testing doesn't tell the whole story.

this illustrates the difference between industry standard and fully tweaked 3V: https://www.youtube.com/watch?v=6imZ4Vo8iwA

also:

I was waiting for you to chime in Nathan! Op, nathan has done a lot of testing and research on 3v heat treat. I pretty much try to follow what he says, including testing your work!

 

[Phil705]

Thanks, I meant Rc 59-60.

 

[Phil705]

I meant Rc 59-60 as my goal.

 

[Phil705]

I meant Rc 59-60 as my goal.

 

[mete]

The companies list HT for their typical use of that steel ! That may mean 1" thick or more .Very different from 1/8". Start with the suggestions the experiment . Thickness , edge angle use and anything else you think of .
The low vs high temper --the high temper [900 F]was originally used for making a very stable structure which would not change over time . Knives don't need that .I prefer 400F which gives better corrosion resistance.