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14C28N and AEB-L share the same abrasive edge-retention and toughness ratings. The clear difference in this pair is corrosion resistance, where 14C28N leads. For a knife you like in either material, the grind and treatment deserve at least as much attention as the name.
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 | 14C28N | AEB-L |
|---|---|---|
| Abrasive edge retention | ||
| Toughness | ||
| Corrosion resistance |
Heat treatment, hardness and geometry affect actual knives.
A Tie in Wear and Toughness
Both rate 3 for abrasive edge retention and 9 for toughness. Neither receives a material-level advantage in those two properties.
That makes this a poor choice to settle by assuming one keeps an edge longer. Compare the actual blade thickness, edge angle and maker’s treatment.
Our 14C28N steel profile explains its properties and care in more detail.
14C28N Adds Corrosion Resistance
14C28N rates 8.5 for corrosion resistance against AEB-L at 7. We would value that extra margin in a knife carried through humid days or used around moisture.
Both are stainless, and both still benefit from cleaning and drying. AEB-L is not ruled out simply because another stainless steel rates higher.
Our AEBL steel profile explains its properties and care in more detail.
A Good Fit for Fine Cutting Edges
Their toughness ratings are appealing when a maker wants an edge that resists damage. The knife still needs geometry appropriate to the intended cutting.
A thin kitchen blade and a compact folder can use either material, but they answer different needs. Steel alone cannot make those designs interchangeable.
Let Corrosion Care or Knife Design Decide
For otherwise similar knives, we would lean toward 14C28N for its corrosion advantage. We would happily choose the AEB-L model if its grind, grip or size better suited the work.
There is little reason to replace an AEB-L knife that already performs well solely to chase equal wear and toughness scores.
Composition
Our steel composition guide explains the elements and the differences between reported values, ranges and limits.
14C28N: Alleima nominal composition, mass %; selected elements, not a batch analysis. Alleima: 14C28N datasheet.
AEB-L: Uddeholm nominal composition, mass %; phosphorus and sulfur are maximum limits. Uddeholm: UHB AEB-L medical blade strip.
| Element | 14C28N | AEB-L |
|---|---|---|
| Carbon (C) | 0.62% | 0.67% |
| Silicon (Si) | 0.2% | 0.4% |
| Manganese (Mn) | 0.6% | 0.6% |
| Chromium (Cr) | 14% | 13% |
| Nitrogen (N) | 0.11% | Not listed |
| Phosphorus (P) | Not listed | ≤0.025% |
| Sulfur (S) | Not listed | ≤0.015% |
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.
- Alleima: 14C28N datasheet
- Uddeholm: UHB AEB-L medical blade strip
