M390 vs. Elmax: The Ultimate Guide to 6 Key Differences
Both M390 and Elmax come from [Böhler-Uddeholm](https://www.us.bohler.com/en-us/), the Austrian-Swedish steel manufacturer familiar to many knife enthusiasts—even if they’ve only seen the name on a blade’s spec sheet. M390 is one of Böhler’s flagship “super steels,” designed to compete with the top powder-metallurgy steels on the market. Crucible’s CPM 20CV and Carpenter’s CTS-204P have nearly identical compositions, so all three generally offer comparable performance, with heat treatment and blade geometry helping determine how they perform in an actual knife.
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