CPM 3V is one of the toughest knife steels you can buy. It is a favorite for hard-use fixed blades and choppers.
CPM 3V Steel at a Glance
| Type | Powder metallurgy (PM) steel |
|---|---|
| Made by | Crucible (USA) |
| Typical hardness | 58-61 HRC |
| Key elements | Carbon about 0.8%, chromium about 7.5%, molybdenum about 1.3%, vanadium about 2.75% |
| Edge retention | 6/10 (good) |
| Toughness | 10/10 (excellent) |
| Rust resistance | 3/10 (modest) |
| Ease of sharpening | 5/10 (moderate) |
| Best for | Hard-use fixed blades |
Ratings are relative 1 to 10 scores for typical factory heat treatments. See how CPM 3V ranks against 46 other steels in our Knife Steel Chart.
What Is CPM 3V Steel?
3V is a powder tool steel designed for toughness. Its fine vanadium carbides add wear resistance without making it brittle.
CPM 3V Steel Properties
- Edge retention: Good.
- Toughness: Excellent.
- Rust resistance: Modest. Keep it dry and lightly oiled.
- Ease of sharpening: Moderate.
CPM 3V vs Other Steels
CPM 3V vs CruWear
Compared with CruWear, CPM 3V is tougher and is slightly easier to sharpen. CruWear holds an edge slightly longer. Read our CruWear guide.
CPM 3V vs 5160
Compared with 5160, CPM 3V holds an edge longer and resists rust slightly better. 5160 is easier to sharpen. Read our 5160 guide.
CPM 3V vs CPM M4
Compared with CPM M4, CPM 3V is tougher, resists rust slightly better and is easier to sharpen. CPM M4 holds an edge longer. Read our CPM M4 guide.
Is CPM 3V Steel Good for Knives?
Yes, for hard-use fixed blades and bushcraft. Look for coated blades or keep it oiled.
Pros:
- Excellent toughness
- Good edge retention
Cons:
- Not stainless
- Pricier
Knives That Use CPM 3V Steel
Makers sometimes change blade steels between versions, so check the listing to confirm the steel before you buy.
Frequently Asked Questions
Is CPM 3V steel stainless?
No. CPM 3V is not stainless and will rust or patina if left wet. Keep it dry and lightly oiled.
How hard is CPM 3V steel?
Knives in CPM 3V are usually heat treated to around 58-61 HRC.
Is CPM 3V easy to sharpen?
Moderate. Quality ceramic or diamond stones help.
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