Correct, you'd also want to cross reference the hardness and toughness with the edge retention tests if you're looking for specific performance and want to narrow it down:RamZar wrote: ↑Sat Apr 08, 2023 3:24 pmrooster81 wrote: ↑Sat Apr 08, 2023 2:00 pmYou want to look at the more detailed chart further down the post to see the specifics in terms of actual results at respective harness levels:
https://i0.wp.com/knifesteelnerds.com/w ... =757&ssl=1
AEB-L looks slightly tougher at higher hardness to the other steels mentioned.
In that graph as the hardness goes up toughness goes down. Unfortunately, the tests for LC200N and 14C28N didn’t go as far as AEB-L for various hardness.
https://i2.wp.com/knifesteelnerds.com/w ... =759&ssl=1
Edge retention goes up as hardness increases, while toughness goes down as hardness increases. My understanding is that there is an optimal range and balance with steel relative to hardness and heat treat. Dr. Larrin assigns 1-10 ratings to the various characteristics of steels based on the data and gives a great approximation of comparative performance, but if you want to nerd out you can dig deeper into the data (thanks Doc!). I'm guessing the numbered scores are close enough where it'd be difficult for most of us to be able to tell a difference in knives that are close in score.
The point though is that there is slightly more nuance if you look beyond the 1-10 scales. Two different steels could be a 9 on edge retention but one would objectively perform better than the other every time. Also, if one knife received a 4 score on edge retention and another received an 8 it doesn't necessarily mean the 8 will cut twice as much as the 4.
^ these are all non expert opinions from some guy on the internet.