The razor-steel lineage at 61 HRC: Zwilling's trade name for Sandvik 13C26, essentially indistinguishable from AEB-L.
FC61
For the Newcomer
FC61 is not a unique steel. It is Zwilling's A name a brand uses to market a steel it buys from a mill, rather than the steel's actual metallurgical designation. for Sandvik 13C26, which is in turn essentially identical to Uddeholm AEB-L. "FC" stands for Fine Carbide; "61" refers to the hardness target. Zwilling uses proprietary steel designations to give itself flexibility with its supply chain while building brand identity. The steel itself is exceptional: fine-carbide Swedish stainless, very tough, easy to sharpen, and hardened to a genuine 61 Rockwell C, the standard hardness scale for blade steel. Most kitchen knives fall between about 56 and 66; lower means softer and more forgiving., harder than most German knives and competitive with mid-range Japanese steels. In the Miyabi lineup, it is the entry to mid-tier steel choice (Evolution, Kaizen II, Koh lines).
About this composition
The FC61 designation, history and meaning. The name appeared publicly around 2013 with the launch of the Miyabi Evolution and Kaizen II lines. Forum discussion at the time (KKF, CKTG) was confused: one early theory was that "FC" referred to a molybdenum-enhanced dishwasher-safe steel; another (correct) theory was that "FC" meant Fine Carbide and "61" meant HRC target. The consensus settled on the latter, aligned with Zwilling's marketing language ("Revolutionary FC61 Steel: Fine Carbide distribution with astonishing 61 Rockwell hardness").
Is FC61 a Fallkniven designation? No. Despite the "FC" similarity to "Fallkniven," FC61 is Zwilling and Miyabi only. Fallkniven uses VG7, VG-10, CoS, and Elmax in its kitchen knives.
Performance Deep Dive
Toughness: Very high, approximately 2× the toughness of VG-10 by volume.
At 61 HRC, significantly tougher than VG-10 at 60–61 HRC.
Edge retention: Moderate.
Comparable to AUS-8, Nitro-V, 14C28N. Rated lower than VG-10 by some sources. KKF community: "FC61 edge retention is lower than VG10 but at the same level as AUS 8 and 8Cr13MoV, and marginally better than German 1.4116."
Corrosion resistance: Good for kitchen stainless.
13% Cr in solution. Identical to AEB-L corrosion behavior: adequate for kitchen use, will corrode slightly faster than 14C28N under identical conditions.
Ease of sharpening: Straightforward by Japanese knife standards.
Fine carbide advantage: Enables 9.5–12° per side via Miyabi's Honbazuke method.
Near-zero large Microscopic hard particles within steel that resist wear and help anchor the edge; their size and distribution limit how thin an edge can go without chipping. volume means thin acute edges hold up without chipping.
Research Notes
Zwilling creates proprietary steel names so it is not exclusively tied to one steel mill. FC61 is its designation; the underlying steel is 13C26 from Sandvik/Alleima. This is standard practice among large knife companies (Victorinox's X50CrMoV15, Wüsthof's same designation, Shun's VG-MAX).
Common misconception: FC61 is sometimes claimed to be Miyabi's proprietary powder steel similar to SG2. This is completely false. FC61 is conventional ingot-cast The hard, fine-grained crystal structure that forms when steel is quenched, giving a blade its hardness. stainless, nothing to do with powder metallurgy.
In the Kitchen
The Miyabi Evolution at $165 is the cleanest FC61 entry point: full 61 HRC FRIODURx2, factory-sharpened to 9.5–12° per side, in a Western handle. The Kaizen II at $190 adds 48-layer Damascus stainless cladding for aesthetic without changing the steel underneath. Both are notably more capable than the German-stainless production category at the same price.
Composition
| Element | % | Role |
|---|---|---|
| Carbon (C) | 0.68 | Hardness; same level as AEB-L family |
| Chromium (Cr) | 13 | Corrosion resistance |
| Manganese (Mn) | 0.7 | Hardenability |
| Silicon (Si) | 0.4 | Strength, deoxidation |
Steel family: Conventional (ingot) martensitic stainless strip steel. FC61 is Zwilling and Miyabi's trade name for Sandvik 13C26, which is in turn near-identical to Uddeholm AEB-L. 'FC' stands for Fine Carbide; '61' is the HRC target. Heat treatment runs via Miyabi's proprietary FRIODURx2® double ice-hardening process.
Artisan Makers
| Maker | Knife | Style | Price | Link |
|---|---|---|---|---|
| Miyabi | Evolution 8" Chef's Knife | Western chef, FC61, 61 HRC, FRIODURx2 ice-hardened, Honbazuke 9.5–12° per side | $164.99 | zwilling.com |