1084 is a simple carbon steel that is a favorite of new bladesmiths because it is easy to forge and heat treat.
1084 Steel at a Glance
| Type | Carbon steel |
|---|---|
| Made by | Many US mills (AISI 1084) |
| Typical hardness | 58-61 HRC |
| Key elements | Carbon about 0.8 to 0.9%, manganese about 0.6 to 0.9% |
| Edge retention | 3/10 (modest) |
| Toughness | 8/10 (very good) |
| Rust resistance | 1/10 (low) |
| Ease of sharpening | 9/10 (very easy) |
| Best for | Forged and beginner smiths |
Ratings are relative 1 to 10 scores for typical factory heat treatments. See how 1084 ranks against 46 other steels in our Knife Steel Chart.
What Is 1084 Steel?
1084 is a plain carbon steel with just enough carbon to harden well. Its simple chemistry makes heat treatment forgiving.
1084 Steel Properties
- Edge retention: Modest.
- Toughness: Very good.
- Rust resistance: Low. Keep it dry and lightly oiled.
- Ease of sharpening: Very easy.
1084 Equivalents and Alternatives
1080 is nearly identical. It is often paired with 15N20 for Damascus.
1084 vs Other Steels
1084 vs 1095
Compared with 1095, 1084 is tougher. Read our 1095 guide.
1084 vs 5160
Compared with 5160, 1084 holds an edge slightly longer. 5160 is tougher and resists rust slightly better. Read our 5160 guide.
1084 vs 15N20
Compared with 15N20, 1084 holds an edge slightly longer. 15N20 is slightly tougher and resists rust slightly better. Read our 15N20 guide.
Is 1084 Steel Good for Knives?
Yes, especially for forged and custom knives. Keep it oiled.
Pros:
- Tough
- Very easy to sharpen
- Easy to forge
Cons:
- Rusts easily
- Modest edge retention
Knives That Use 1084 Steel
Makers sometimes change blade steels between versions, so check the listing to confirm the steel before you buy.
Frequently Asked Questions
Is 1084 steel stainless?
No. 1084 is not stainless and will rust or patina if left wet. Keep it dry and lightly oiled.
How hard is 1084 steel?
Knives in 1084 are usually heat treated to around 58-61 HRC.
Is 1084 easy to sharpen?
Very easy. Most standard stones and pull-through sharpeners work.