This is the most relevant comparison for modern high-end knives, as MagnaCut was specifically designed to fix the minor drawbacks of S35VN.
While CPM-S35VN is a world-class "balanced" steel, MagnaCut is widely considered a breakthrough because it offers higher toughness, better edge retention, and extreme corrosion resistance—all at the same time.
Comparison Table
Feature | CPM S35VN | |
|---|---|---|
Edge Retention | Very Good | Superior |
Toughness | Good | Excellent (Extreme impact resistance) |
Corrosion Resistance | High (Stainless) | Extreme (Virtually rust-proof) |
Hardness (HRC) | 58–61 | 60–64+ |
Sharpening Ease | Moderate | Moderate (Easier than S35VN) |
Stability | High | Superior (Resists micro-chipping) |
Strength and Durability Breakdown
Toughness (Durability): MagnaCut is significantly tougher than S35VN. Because MagnaCut contains no Chromium Carbides (it uses only harder Vanadium and Niobium carbides), its grain structure is much finer. This allows MagnaCut to survive hard impacts and "thin" grinds that would cause S35VN to chip.
Edge Stability: Because of that fine grain structure, MagnaCut can be heat-treated to a higher hardness (62-64 HRC) while remaining more stable than S35VN at 60 HRC. This means the edge stays "true" and sharp longer without rolling or chipping under stress.
The "Saltwater" Factor: MagnaCut is essentially a "stainless" steel that performs like a "tool" steel. It is much more durable in harsh environments (saltwater, sweat, chemicals) than S35VN. S35VN is very rust-resistant, but MagnaCut is practically immune to corrosion in real-world testing.
Sharpening: Surprisingly, despite being better at holding an edge, MagnaCut is often reported to be slightly easier to sharpen than S35VN. S35VN can sometimes feel "gummy" on the stones, whereas MagnaCut responds crisply to abrasives.
Which one should you choose?
Choose CPM MagnaCut if you want the current "State of the Art." It is superior in almost every measurable category, especially for hard-use outdoor knives or folders used near water.
Choose CPM S35VN if you are looking for a high-quality knife at a more affordable price point. Since MagnaCut is newer and in high demand, S35VN remains an excellent, time-tested value.