Aichi Steel Company, located in Tokai in, Japan, produces AUS 10 steel. Also known as AUS-10A Steel. Although it wasn’t well-known in the past, it gained popularity when it was used in imported Japanese knives.
The AUS 10 steel can be used to make high-quality knives. It is affordable and has excellent edge retention, toughness.
AUS10 steel is the best steel type under the AUS series (AUS-6, AUS-8, and AUS-10) due to its high carbon- and vanadium contents. AUS-10 steel is also stainless steel because it has high levels of Chromium in the alloy.
These are just a few of the characteristics that make AUS-10A steel stand out from its competitors:
AUS 10 Steel Composition
- Carbon 1.10%: Enhances edge retention, hardness and tensile strengths. It increases steel resistance to wear and abrasion as well as corrosion.
- Chromium Cri 14.50%: Formations of Chromium carbides. This increases the blade’s hardness and tensile strength as well as corrosion resistance.
- Molybdenum Mo 0.3%: It increases machinability.
- Vanadium V 0.25: It inhibits grain growth in high temperature processing and heat treatments, which increases the steel’s strength and toughness. It forms carbides, which increase wear resistance.
- Nickel Ni 0.499%: Increases strength and toughness. It can increase hardenability, but not as much than other alloying elements found in steel. It can increase corrosion resistance by significant amounts
- Phosphorous P 0.04: Enhances steel’s strength and improves its machinability
- Manganese 0.50%: Increases steel’s strength and hardness. The steel’s hardenability can be improved by heating it.
- Silicon Si 1.0%: Increases strength, heat resistance.
- Sulfur S 0.03% : Enhances machinability, but is considered an impurity when used in large quantities.
AUS10 steel is hard due to its high carbon content. It scores between 58-60 HRC on Rockwell’s scale of hardness. However, the knife’s sharp edges make them fragile. To increase the material’s elasticity and ductility, the exact amount of manganese and silicon have been added to AUS-10 alloy.
Retention of AUS-10 Edge
AUS 10 steel alloy has high carbon content and is highly refined. The Vanadium and Carbon elements help to form strong, fine carbides which contribute to excellent edge retention.
Steel with a greater amount of fine carbides tends to be sharper than steel with fewer large carbides.
Sharpening the AUS-10
AUS-10 stainless-steel knives can be easily sharpened and achieve a perfect edge. Sharpening AUS-10A stainless steel knives is simple and can be done with different sharpening tools.
You should be cautious during this process. For example, avoid using a pull-through sharpener.
AUS-10 Corrosion Resistance
AUS-10 stainless steel alloy is unique in that it contains a unique combination from Nickel, Chromium and Vanadium Elements. The unique combination of elements makes AUS-10 stainless steel resistive to rust and other corrosive substances.
This steel is not the best, but it’s still good. Other steels such as LC200N and H1 steel offer greater corrosion resistance.
Wear Resistance AUS-10
The unique steel alloy’s combination is what makes it so special. Wear resistance is high for AUS-10 steel thanks to Vanadium and Chromium as well as Molybdenum.
AUS 10 steel has more carbon and vanadium than any AUS steel series steel. This makes it the most hardy blade type in the AUS category.
AUS-10A is tough as it has a hardness of between 58 and 59 HRC. Nickel can also be added to greatly increase its toughness.
The knives are strong enough to withstand repeated sharpening.
AUS-10 vs. other steel
AUS-10 vs. VG-10 Steel
VG-10 steel is a premium Japanese Steel with better properties such as hardness, edge retention and corrosion resistance. AUS10 steel is slightly more affordable than VG-10 steel.
Knives made from AUS10 steel will need to be sharpened more often due to their lower edge retention. However, knives made of VG-10 are more durable and can keep an edge perfect for a longer time.
AUS 10 and VG-10 are both stainless steels that have high Chromium contents. However, VG-10 steel has a better rust resistance.
AUS-10 Steel vs AUS-8
AUS10 steel is more resistant to wear than AUS-8 Steel due to its higher carbon content. AUS-8 steel is slightly tougher because of the inclusion of more Nickel elements.
AUS-10 and AUS-8 are nearly identical and have excellent wear resistance thanks to their alloys.
AUS-6 can be more fragile and break faster than AUS-10, but it is less brittle. AUS-6 is more easy to resharpen than AUS-10 because it has a lower hardness rating.
AUS-10 is superior to AUS 6 in all properties. AUS 6 steel, the lowest end of the AUS series, is one of the most hated steels.
Is AUS-10 Steel Good?
Yes! Yes! This steel is easy to sharpen, and many people consider it a top-quality metal.
It is closer to AISI 440C, and can be considered its Japanese counterpart. However, it has slightly better performance because of the addition Vanadium. AUS-10 steel is different from the well-known 154CM Steel because it has smaller grained carbides.
AUS10 steel knives are extremely durable and rust-resistant. AUS-10 steel is also more resistant to rust and corrosion than other carbon steels.