AUS-8 is a Japanese stainless steel that has been used in budget to mid-range knives for decades, including many older Cold Steel and SOG models.
AUS-8 Steel at a Glance
| Type | Stainless steel |
|---|---|
| Made by | Aichi Steel (Japan) |
| Typical hardness | 57-59 HRC |
| Key elements | Carbon about 0.75%, chromium about 14%, molybdenum, vanadium and nickel in small amounts |
| Edge retention | 3/10 (modest) |
| Toughness | 6/10 (good) |
| Rust resistance | 7/10 (very good) |
| Ease of sharpening | 8/10 (easy) |
| Best for | Budget to mid EDC |
Ratings are relative 1 to 10 scores for typical factory heat treatments. See how AUS-8 ranks against 46 other steels in our Knife Steel Chart.
What Is AUS-8 Steel?
AUS-8 is made by Aichi Steel in Japan. Its fine grain lets it take a very sharp edge, and the vanadium helps a little with wear resistance.
AUS-8 Steel Properties
- Edge retention: Modest.
- Toughness: Good.
- Rust resistance: Very good.
- Ease of sharpening: Easy.
AUS-8 Equivalents and Alternatives
8Cr13MoV is the closest Chinese equivalent. 14C28N is a modern alternative with better toughness.
AUS-8 vs Other Steels
AUS-8 vs 8Cr13MoV
Compared with 8Cr13MoV, AUS-8 is slightly tougher. Read our 8Cr13MoV guide.
AUS-8 vs Sandvik 14C28N
Compared with AUS-8, Sandvik 14C28N holds an edge slightly longer, is slightly tougher and resists rust slightly better. Read our Sandvik 14C28N guide.
AUS-8 vs 440C
Compared with 440C, AUS-8 is tougher and is easier to sharpen. 440C holds an edge slightly longer. Read our 440C guide.
Is AUS-8 Steel Good for Knives?
Yes, for affordable EDC and outdoor knives. It is easy to maintain and forgiving.
Pros:
- Easy to sharpen
- Good toughness
- Good rust resistance
Cons:
- Modest edge retention
Knives That Use AUS-8 Steel
Makers sometimes change blade steels between versions, so check the listing to confirm the steel before you buy.
Frequently Asked Questions
Is AUS-8 steel stainless?
Yes. AUS-8 is a stainless steel, though no knife steel is completely rust proof. Wipe it dry after use.
How hard is AUS-8 steel?
Knives in AUS-8 are usually heat treated to around 57-59 HRC.
Is AUS-8 easy to sharpen?
Easy. Most standard stones and pull-through sharpeners work.