M390 Super Steel

Super Steel

Hardness: 60–62 HRC

Typical Price Range: $100–$400+

M390 is a third-generation powder metallurgy steel made by Böhler-Uddeholm. Exceptional edge retention, corrosion resistance, and toughness make it a top choice for premium EDC blades.

Advantages

✓Outstanding edge retention — holds a razor edge far longer than most steels
✓Excellent corrosion resistance thanks to high chromium content
✓Superior toughness — resists chipping and breaking under heavy use

Disadvantages

✗Premium price — one of the more expensive blade steels on the market
✗Difficult to sharpen at home; best results with diamond or ceramic tools

Best Use Cases

•High-end EDC folders and fixed blades
•Tactical and duty knives
•Collector pieces requiring lasting sharpness

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