AUS-10 Stainless Steel
AUS-10 is a Japanese stainless steel that builds on the foundation of AUS-8 by offering higher hardness, better edge retention, and improved overall performance. It is commonly used in modern folding knives and is especially popular in brands like Al Mar.
It maintains the easy-to-use nature of AUS-series steels while pushing performance closer to premium territory, making it a strong choice for users who want more cutting performance without sacrificing simplicity.
Technical Profile
Hardness: 59–61 HRC (★★★★☆)
Edge retention: ★★★★☆
Corrosion resistance: ★★★★☆
Toughness: ★★★★☆
Sharpening: ★★★★☆
What Makes AUS-10 Special
AUS-10 increases carbon content compared to AUS-8, allowing it to achieve higher hardness and improved edge retention. At the same time, it keeps a fine grain structure, which helps maintain good toughness and ease of sharpening.
In real-world use, AUS-10 feels like a refined upgrade — it stays sharp longer than AUS-8 while still being easy to maintain and forgiving during use.
Best Uses for AUS-10
– Everyday carry (EDC) knives
– Folding knives
– Outdoor and utility knives
– General-purpose use
It is ideal for users who want balanced, modern performance without stepping into high-end steels.
Advantages
– Good edge retention
– Strong corrosion resistance
– Easy to sharpen and maintain
– Well-balanced performance
Disadvantages
– Not as wear-resistant as premium steels like S30V or M390
– Less “premium appeal” than powder metallurgy steels
Maintenance Tips
AUS-10 is stainless and low maintenance. Regular cleaning is sufficient, and it performs well in everyday and outdoor environments.
Well-Known Knives From Your Brand Portfolio Using AUS-10
• CS62MGD Cold Steel Large Espada Lockback
• CS26WT Cold Steel Air Lite Tanto Lockback
• KUB449A Kubey Sparrow Crossbar Lock Black
• CS29AT Cold Steel Large Voyager Lockback
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