Originally Published: (Use the article’s original publication date.)
Last Updated: July 31, 2026
Reading Time: 10 minutes
Editorial Review: Our knife steel reviews are regularly updated using manufacturer specifications, metallurgical data, and real-world user experience. This guide combines technical information with practical performance testing to help you determine whether FC61 is the right knife steel for your needs.
FC61 at a Glance
Best For: Home cooks, serious enthusiasts, Japanese kitchen knives
Strengths
- Excellent corrosion resistance
- Fine-grained edge
- Easy sharpening
- Very good toughness
- Outstanding cutting feel
Weaknesses
- Edge retention below premium powder steels
- Fewer knife choices than VG-10
Overall Verdict
One of the best stainless steels for everyday kitchen knives, offering an outstanding balance of sharpness, toughness, corrosion resistance, and ease of maintenance.
Quick Answer
Quick Answer: FC61 is a fine-grained stainless knife steel widely considered equivalent to Sandvik 13C26/AEB-L. It delivers excellent sharpness, easy sharpening, very good toughness, and outstanding corrosion resistance, making it one of the best choices for high-quality kitchen knives used in everyday cooking.
What is FC61 Steel?
When properly heat-treated and tempered, the steel makes tough, durable, and corrosion resistance blades. FC61 steel is also used to manufacture high-end knives in Seki, Japan. It is ideal for razor blades and surgical knives too.
FC61 Steel Composition (FC61 Steel Chart)
- Carbon C 0.68%: Increases edge retention, hardness, and tensile strength. It also improves steel resistance to wear, abrasion, and corrosion.
- Chromium Cr 13.00%: Formation of Chromium carbides. Increases the blade’s hardness, tensile strength, and corrosion resistance.
- Manganese Mn 0.70%: improves the strength and hardness of steel. When the steel is heat-treated, hardenability is improved with increased manganese.
- Silicon Si 0.4%: Increases strength and heat resistance.
- Sulfur S 0.01%: Improves machinability it is regarded as an impurity and may affect the performance of the steel.
- Phosphorous P 0.02%: Increases the strength and improves the machinability of steel but is regarded as an impurity.
Properties of FC61 steel
FC61 Steel Hardness
FC61 stainless steel exhibits a Rockwell hardness of up to 61HRC. The achieved hardness varies with the heat treatment technique and the tempering time of the manufacturer. High hardness positively influences properties like edge retention and wear resistance of the blade steel.
FC61 Steel Edge retention
With a Rockwell hardness of 61HRC, FC61 blade steel offers good edge retention though not the best out there, particularly in stainless steel. Its edge retention is enough to last several cuts but will need sharpening when constantly used.
FC61 Steel edge retention is lower than Japanese VG10 steel, also used in most kitchen knives but is at the same level as AUS 8 steel and 8Cr13MoV steel. It is, however, marginally better than German 1.4116 and X50CRMOV15 stainless steel.
FC61 Steel Wear resistance
With daily usage, knife blades are expected to wear and tear, and all types of steel blades bow to the effects of abrasion at some point. For that reason, it is essential to purchase a knife with excellent wear resistance properties, and FC61 knives fall into that category thanks to the high hardness.
Because of the high wear resistance, FC61 blades last for a long time, even with daily usage and frequent sharpening. To improve the lifespan of FC61 steel knives, you can stick to sharpening them with whetstones and avoiding automatic sharpeners.
FC61 Steel Toughness
The toughness of steel can sometimes be described as inversely proportional to its hardness. This means that steel with high hardness offers low toughness. FC61 stainless steel has a hardness of about 61 HRC; however, its toughness level is very high.
The high toughness can be attributed to the high purity of FC61 steel alloy composition, mainly composed of carbon and chromium with minimal impurities. This allows for the formation of fine-grained carbides, which significantly improves toughness and hardness at equal measure.
FC61 stainless steel toughness is better than most stainless steel; Its toughness level is equivalent/comparable to 14C28N steel, AEB-L steel, and LC200N steel. It beats VG10 blade steel, SG2 steel, and even powder Crucibles steels like S45VN and S30V.
FC61 Steel Corrosion resistance
FC61 steel is stainless steel with 13% chromium in its composition, and therefore, it does not rust or stain easily. If you are shopping for a knife in corrosive environments like in the kitchen or areas of high humidity and salty water, FC61 stainless steel knives will not disappoint.
Although the steel is resistant to rust, it can still rust if exposed to corrosive situations. For instance, you cannot leave the blades in water overnight and expect them not to rust. This calls for proper care and maintenance, which involves washing, cleaning, and drying the knives after use. Apply a coat of mineral oil on the blades and remove the sheath for long-term storage for extra protection.
FC61 steel corrosion resistance is comparable to Japanese AUS 8 steel, Nitro V steel, and CPM 154 stainless steel.
Ease of sharpening FC61 Steel
The ease of sharpening a knife blade is directly affected by its hardness. Therefore hard steels like FC61 are challenging to sharpen. Note that this does not mean that the blades will never take a sharp edge after dulling, but it will take you more time and energy to get a sharp edge.
An easier way to get a sharp edge with this steel is to use whetstones. You need to go through the different grades of whetstones for a sharper edge. You can start with a 400 grit to a 1000 grit to a 4000 grit until you get your desired sharpness.
Real-World Edge Retention
FC61 performs better in everyday kitchen use than its specifications alone might suggest. Thanks to its exceptionally fine grain structure, it maintains a very sharp working edge through normal food preparation, even though it does not match powder metallurgy steels in total edge retention.
For most home cooks preparing meals several times a week, an FC61 kitchen knife typically requires only occasional touch-ups on a ceramic honing rod or fine whetstone. Professional chefs who use their knives continuously throughout the day will notice edge degradation sooner than with steels like SG2 or ZDP-189, but the edge is restored quickly with minimal sharpening effort.
If you value a knife that is consistently sharp and easy to maintain rather than one that stays dull-proof for months, FC61 is an excellent choice. This balance is one reason many experienced knife enthusiasts consider AEB-L/13C26/FC61 among the finest stainless kitchen knife steels available.
Sharpening Experience
One of FC61’s greatest strengths is how pleasant it is to sharpen. While its hardness of approximately 61 HRC provides good edge retention, its fine carbide structure allows it to sharpen more easily than many premium stainless steels.
Most owners can restore an extremely sharp edge using quality water stones in the 1000-3000 grit range, followed by a finishing stone or leather strop if desired. Unlike steels containing large amounts of vanadium carbides, FC61 responds quickly to sharpening and produces an exceptionally refined edge suitable for precise slicing tasks.
This combination of easy sharpening, excellent toughness, and razor-like edge quality explains why FC61 is frequently recommended for cooks purchasing their first premium Japanese kitchen knife.
FC61 Steel Comparison
FC61 steel vs VG10 steel
The main difference between FC61 Steel and VG10 steel is that FC61 steel offers twice the toughness of VG10 blade steel due to its pure alloy composition that greatly improves its toughness over most stainless and non-stainless steel. FC61 blade steel is less likely to break or chip when used on tougher things like cutting bones.
Both FC61 and VG10 knife steels offer good edge retention. However, VG10 steel contains higher amounts of carbon and has vanadium elements in its alloy composition, thus offering higher hardness, edge retention, and wear resistance due to the formation of hard vanadium carbides.
Both FC61 and VG10 are stainless steels; however, Japanese VG10 steel contains a higher amount of chromium elements in its alloy composition hence offering slightly better corrosion resistance.
FC61 steel vs SG2 (FC61 vs MC63)
Henckels uses SG2 Steel under its proprietary name MC63 steel, just like it uses Sandvik 13C26 Steel under its proprietary name FC61 steel. The main difference between FC61 steel and SG2 (Super Gold 2) steel is that FC61 Stainless Steel offers twice the toughness levels of SG2 stainless steel. SG2 stainless steel, on the contrary, offers better edge retention and corrosion compared to FC61 steel.
The high toughness achieved by FC61 Steel is due to its highly pure alloy composition, which lacks other elements like vanadium and has very few impurities in the form of phosphorus or sulfur. The highly pure chemical composition allows the grain of FC61 steel to be extremely fine and thus have better toughness.
SG2 steel, on the other hand, offers better edge retention due to its alloy composition containing high carbon percentage and other elements like vanadium which are responsible for the formation of hard vanadium carbides that are excellent when it comes to edge retention.
SG2 stainless steel also offers slightly better corrosion resistance due to a high amount of chromium elements in its alloy composition than FC61 steel. The difference in corrosion resistance between these two blade steels is not noticeable in daily application.
FC61 Compared to Similar Knife Steels
The table below summarizes how FC61 compares with several popular stainless knife steels discussed in this review.
| Steel | Edge Retention | Toughness | Corrosion Resistance | Ease of Sharpening | Best For |
|---|---|---|---|---|---|
| FC61 | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★★ | Premium kitchen knives |
| VG-10 | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★★★☆ | Japanese chef’s knives |
| AUS-10 | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | Everyday carry & kitchen knives |
| 14C28N | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★★ | Outdoor & kitchen knives |
| Nitro-V | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★☆ | EDC and general-purpose knives |
Key Takeaway: FC61 stands out because it combines a very fine grain structure with excellent corrosion resistance and extremely easy sharpening. While some steels offer slightly longer edge retention, few provide the same balance of cutting performance and low maintenance.
Popular Knives Made With FC61 Steel
Although FC61 isn’t as widely used as VG-10 or AUS-10, several respected knife manufacturers use it because of its fine grain structure, excellent corrosion resistance, and ability to take an extremely sharp edge.
| Knife | Blade Type | Why It Uses FC61 |
|---|---|---|
| Zwilling Pro Le Blanc Chef’s Knife | Chef’s Knife | Excellent balance of sharpness, toughness, and stain resistance. |
| Zwilling Pro Le Blanc Santoku | Santoku | Fine edge for precise vegetable and meat slicing. |
| Zwilling Diplôme Chef’s Knife | Chef’s Knife | Designed for professional culinary training and everyday commercial kitchen use. |
| Miyabi Koh Series (selected models) | Utility & Chef’s Knives | Offers a refined cutting edge with straightforward maintenance. |
Note: Knife manufacturers occasionally change blade steels during production runs. Always verify the steel listed for the specific model before purchasing.
Should You Buy a Knife With FC61 Steel?
FC61 is an excellent choice if you want a premium stainless kitchen knife that is easy to sharpen, highly corrosion resistant, and capable of taking an exceptionally fine edge.
Choose FC61 if you:
- ✔ Prefer Japanese kitchen knives.
- ✔ Want a razor-sharp edge without difficult sharpening.
- ✔ Cook several times each week.
- ✔ Value corrosion resistance and low maintenance.
- ✔ Prefer smooth slicing performance over maximum edge retention.
You may want another steel if you:
- ✘ Need the absolute longest edge retention available.
- ✘ Frequently cut very hard materials or frozen foods.
- ✘ Prefer premium powder metallurgy steels such as SG2 or MagnaCut.
Frequently Asked Questions
Is FC61 steel a good knife steel?
Yes. FC61 is an excellent stainless knife steel that combines fine edge performance, good toughness, outstanding corrosion resistance, and easy sharpening. It is especially well suited for premium kitchen knives used in everyday cooking.
Is FC61 better than VG-10?
Neither steel is universally better. VG-10 generally offers slightly better edge retention, while FC61 is easier to sharpen and can take an exceptionally refined edge. Many home cooks prefer FC61 because it provides an excellent balance of performance and maintenance.
Does FC61 steel rust?
FC61 has excellent corrosion resistance and resists staining extremely well. Like any quality knife, however, it should be washed, dried, and stored properly to maximize its lifespan.
How hard is FC61 steel?
Most manufacturers heat-treat FC61 to approximately 60–61 HRC, providing a well-balanced combination of sharpness, toughness, and durability.
Is FC61 difficult to sharpen?
No. One of FC61’s greatest strengths is how quickly it sharpens. Its fine grain structure allows it to develop a razor-sharp edge with less effort than many premium stainless steels.
Who should buy an FC61 knife?
FC61 is an outstanding choice for home cooks, culinary students, and knife enthusiasts who want premium cutting performance without the additional maintenance required by some higher-alloy steels.
Overall Recommendation
For most home cooks, FC61 offers one of the best balances of sharpness, durability, corrosion resistance, and ease of maintenance available in a stainless kitchen knife. It may not be the most exotic steel on the market, but its real-world performance explains why many experienced knife enthusiasts continue to recommend it.
Our FC61 Review Process
Every knife steel reviewed on KnifeBasics is evaluated using the same consistent methodology. We analyze published steel compositions, hardness ranges, heat treatment, corrosion resistance, toughness, ease of sharpening, edge retention, and real-world performance reported by experienced knife users.
Rather than relying solely on manufacturer specifications, we compare FC61 with similar knife steels to highlight its strengths, weaknesses, and best applications. Our goal is to help readers choose the right knife steel based on their cooking style, maintenance preferences, and budget.
Conclusion
Check out this Miyabi 6.5-inch FC61 steel Nakiri knife. Something that makes it stand out from the crowd is the heat treatment techniques used on it. It achieves 61HRC and maintains an exceptionally thin blade close to Usuba level.
No products found.
