K390 - The Best High Edge Retention Knife Steel? Media

I finally finished my testing of K390 so I can compare its properties to other popular knife steels.

Written version of this information: https://knifesteelnerds.com/2023/04/11/k390-best-high-wear-resistance-steel/
Support future knife steel research on Patreon: https://www.patreon.com/Knifesteelnerds

00:00 Intro
00:05 K390 Composition and History
00:51 Hot Hardness
02:51 K390 in knives
03:18 Bohler's Claims about K390
03:48 Microstructure
05:24 CATRA Edge Retention
06:34 Toughness
08:03 Choosing Knives in K390 vs Similar Steels
08:25 Toughness vs Other Steels
09:17 The Biggest Problem with K390
09:38 Heat Treating K390
11:49 New Steel Ratings
12:57 Patreon
13:04 Knife Engineering
13:07 Subscribe