Magnacut vs M390: Which Knife Steel Is Better in 2026?
When it comes to premium knife steels, few comparisons are as debated as Magnacut vs M390. Both are considered top-tier materials, widely used in high-end EDC and outdoor knives—but they perform very differently depending on what you actually need.
If you're trying to decide which one is worth your money, this guide breaks it down in a practical, no-nonsense way.
What Is Magnacut Steel?
Magnacut is a relatively new powder metallurgy steel designed specifically for knives. It was engineered to balance three things that usually conflict:
Edge retention
Toughness
Corrosion resistance
Unlike many older steels, Magnacut doesn’t force you to sacrifice one for another. That’s why it’s quickly becoming a favorite among premium knife brands.
What Is M390 Steel?
M390, produced by Böhler, has long been considered a benchmark for high-end knife steels. It’s known for:
Exceptional edge retention
High wear resistance
Premium feel
However, it achieves this through high carbide content, which comes with trade-offs—especially in toughness and sharpening difficulty.
Magnacut vs M390: Key Differences
1. Edge Retention
M390: Outstanding edge retention, one of the best in production steels
Magnacut: Slightly lower, but still excellent
👉 If your priority is long-lasting sharpness with minimal maintenance, M390 has the edge.
2. Toughness
Magnacut: Significantly tougher
M390: More brittle under heavy use
👉 For hard use, outdoor tasks, or situations where chipping is a concern, Magnacut is the safer choice.
3. Corrosion Resistance
Magnacut: Near stainless perfection
M390: Very corrosion-resistant, but slightly behind
👉 In humid or marine environments, Magnacut performs better.
4. Ease of Sharpening
Magnacut: Easier to sharpen
M390: Takes more time and better tools
👉 If you don’t enjoy sharpening or lack advanced tools, Magnacut is more user-friendly.
Performance Score Comparison
Here’s how they stack up using a standardized steel rating system:
CategoryMagnacutM390Edge Retention9/1010/10Toughness9/106/10Corrosion Resistance10/109/10Hardness Potential9/109/10Ease of Maintenance7/105/10
Overall Score:
Magnacut: 90 / 100 (S Tier)
M390: 87 / 100 (A+ Tier)
Which One Should You Choose?
Choose Magnacut if:
You want a balanced, all-around steel
You use your knife in demanding environments
You prefer easier maintenance
👉 Best for: EDC, outdoor, survival use
Choose M390 if:
You want maximum edge retention
You prefer a “premium feel” steel
You don’t mind harder sharpening
👉 Best for: EDC, light-duty precision tasks
Real-World Recommendation
If this were a few years ago, M390 would be the obvious winner. But today, Magnacut changes the game.
Magnacut is the better all-around steel for most users in 2026.
M390 is still excellent—but more specialized.
Final Verdict
Best Overall: Magnacut
Best Edge Retention: M390
Best for Hard Use: Magnacut
FAQ
Is Magnacut better than M390?
For most users, yes. It offers better toughness and corrosion resistance with only a small trade-off in edge retention.
Why is M390 still popular?
Because it delivers extremely long edge life and has a strong reputation in the knife community.
Is Magnacut worth the price?
If you want top-tier performance without major weaknesses, it’s one of the best steels available today.