M390 steel has become one of the most sought-after blade materials in the knife industry. Developed by Bohler-Uddeholm, this premium powder metallurgy stainless steel offers an exceptional balance of edge retention, corrosion resistance, and toughness. In this guide, we explore what makes M390 a favorite among knife enthusiasts and why it deserves a spot in your collection.
M390's proprietary powder metallurgy process creates a uniform carbide structure that delivers exceptional performance.
M390's proprietary powder metallurgy process creates a uniform carbide structure that delivers exceptional performance.
What Is M390 Steel?
M390 is a high-alloy stainless steel produced through powder metallurgy (PM). Unlike conventional steels, PM steels are made by atomizing molten metal into fine powder particles, then compacting them under high pressure and temperature. This process creates an exceptionally uniform carbide distribution that translates to superior cutting performance and wear resistance.
The composition of M390 includes approximately 20% chromium, 4% vanadium, and 2% molybdenum, along with carefully controlled carbon content. This chemistry gives M390 its outstanding combination of properties that have made it the benchmark for premium knife steels.
Key Properties of M390 Steel
| Property | Rating | Notes |
|---|---|---|
| Edge Retention | Excellent | Among the best of any stainless steel |
| Corrosion Resistance | Very High | 20% chromium provides excellent rust protection |
| Toughness | Good | PM process refines carbide structure for better toughness than conventional high-carbide steels |
| Sharpening Difficulty | Moderate-Hard | High wear resistance makes resharpening more time-consuming |
| Overall Value | Excellent | Long edge life reduces frequency of sharpening |
M390 vs. Other Premium Steels
When comparing M390 to other high-end blade steels, several key differences stand out. M390 typically offers better edge retention than 20CV and MagnaCut, with similar corrosion resistance. Against VG-10 or 14C28N, M390 provides substantially longer edge life, though it can be more challenging to sharpen. For most everyday carry users, the trade-off favors M390's exceptional wear resistance.
Why Choose M390 for Your Pocket Knife?
For anyone who uses a knife regularly, M390's edge retention means fewer sharpenings and consistently reliable performance. The steel takes a fine, sharp edge and holds it through extended cutting tasks. Its corrosion resistance makes it ideal for humid environments or outdoor use. Many premium knife manufacturers, including Artisan Cutlery, use M390 in their flagship models because it delivers the performance that serious users demand.
If you are looking for a knife that maintains its edge through heavy use, resists rust and stains, and offers long-term value despite a higher initial investment, M390 is an outstanding choice. Browse our selection of M390 knives at Artisan Cutlery's premium steel collection to see this exceptional material in action.
Learn more about stainless steel metallurgy on Wikipedia.
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