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440C and VG10 have equal abrasive edge-retention and corrosion-resistance ratings. VG10 has a small toughness advantage. This is one of the comparisons where the specific knife is likely to be a much better deciding factor than the steel chart.
Performance Ratings
For the science, we turn to Dr. Larrin Thomas of Knife Steel Nerds, who has kindly allowed us to share his ratings here.
| Property | 440C | VG-10 |
|---|---|---|
| Abrasive edge retention | ||
| Toughness | ||
| Corrosion resistance |
Heat treatment, hardness and geometry affect actual knives.
Equal Abrasive Edge-Retention Ratings
Both steels rate 4.5 for abrasive edge retention. The framework does not support a claim that VG10 necessarily keeps an edge longer than 440C.
If one knife cuts better, look at its grind, edge condition and treatment rather than crediting a wear advantage absent from these ratings.
Our 440C steel profile explains its properties and care in more detail.
VG10 Has a Small Toughness Lead
VG10 rates 4 for toughness against 440C at 3.5. That half-point difference is small.
We would avoid describing one finished knife as dramatically tougher on that basis. Edge geometry and maker execution still matter.
Our VG10 steel profile explains its properties and care in more detail.
Their Corrosion Ratings Match
Both rate 7.5 for corrosion resistance and are stainless choices. Use normal cleaning and drying with either.
For a clad VG10 blade, these figures describe its core steel rather than every layer. For 440C, confirm that the seller specifies the C grade.
Pick the Knife, Not a Reputation Contest
With these close ratings, we would prioritize blade shape, handle comfort and price. There is no clear wear or corrosion advantage to pay extra for in the chart.
If two designs are equally suitable, VG10’s small toughness lead may be a useful tie-breaker. It should not outweigh a substantially better fit in 440C.
Composition
Our steel composition guide explains the elements and the differences between reported values, ranges and limits.
440C: Carpenter Type Analysis ranges and maxima, mass %. Iron is the balance; values describe this source rather than every producer’s material. Carpenter Technology: 440C alloy data sheet.
VG-10: Selected nominal/typical values, mass %; not a batch certificate or complete analysis. Takefu: VG10.
| Element | 440C | VG-10 |
|---|---|---|
| Carbon (C) | 0.95–1.2% | 1% |
| Chromium (Cr) | 16–18% | 15% |
| Molybdenum (Mo) | ≤0.75% | 1% |
| Manganese (Mn) | ≤1% | Not listed |
| Silicon (Si) | ≤1% | Not listed |
| Phosphorus (P) | ≤0.04% | Not listed |
| Sulfur (S) | ≤0.03% | Not listed |
| Vanadium (V) | Not listed | 0.25% |
| Cobalt (Co) | Not listed | 1.55% |
Compare Two Knife Steels
Sources and Update Notes
- Dr. Larrin Thomas: knife steel ratings · Property ratings; the scores describe steels rather than individual finished knives.
- Carpenter Technology: 440C alloy data sheet
- Takefu: VG10
