M390

[BrandonEDC]

Anybody remember what s!k m390 rockwell hardness was when they used it?

 

[chiral.grolim]

Anybody remember what s!k m390 rockwell hardness was when they used it?

IIRC it was ~60Rc (give or take a couple points), that's what was listed on the site when I bought my first GSO-4.1

 

[BrandonEDC]

Dang. i trust guys knives. I found a knife i like at 58rc and thought it was to low. I was going to base it off of guys. I figured 60 was a better rc.

 

[Armalite Native]

Really depends on the steel type vs heat treat process. I am sure when M390 was selected it was the best option for the time. The RC selected would have stood up to S!K testing AND I will add, has stood up fine in Survivalist testing. 3V and 20CV are at their current heat treats are the go. The best analogy I can give is that both old and new steels are like muscle cars, just different generations with their own attributes.