When comparing 7Cr17 and 8Cr13MoV, you are looking at the two most common "workhorse" steels used in the budget knife market (often found in brands like Kershaw, CRKT, or Gerber).
The primary difference is that 8Cr13MoV is a performance-oriented budget steel, while 7Cr17 is a corrosion-oriented budget steel.
Comparison Table
Feature | 7Cr17 Steel | 8Cr13MoV Steel |
|---|---|---|
Carbon Content | ~0.70% | ~0.80% |
Edge Retention | Low | Moderate |
Toughness | Good | Moderate |
Corrosion Resistance | High | Moderate |
Hardness (HRC) | 54–56 | 57–59 |
Sharpening Ease | Extremely Easy | Easy |
Performance Breakdown
Edge Retention: 8Cr13MoV is the clear winner. The higher carbon content and the addition of Molybdenum and Vanadium allow it to reach a higher hardness. It will hold a functional edge significantly longer than 7Cr17 when cutting cardboard, rope, or plastic.
Corrosion Resistance: 7Cr17 is essentially a Chinese version of 440A. It has a high Chromium-to-Carbon ratio, making it very resistant to rust and staining. 8Cr13MoV is "stainless," but it is notorious for developing small rust spots (pitting) if left in a pocket with sweat or used in humid environments without being wiped down.
Toughness: 7Cr17 is tougher because it is softer. It is less likely to chip if you drop the knife or use it for light prying. 8Cr13MoV, being harder and more carbide-heavy, is more prone to small chips along the edge if it hits a hard surface.
Sharpening: Both are very easy to sharpen compared to premium steels. However, 7Cr17 can be brought back to life in seconds with almost any sharpener, making it very "user-friendly" for people who don't want to learn complex sharpening techniques.
Verdict
Choose 8Cr13MoV for a daily pocket knife (EDC). It offers a much better balance of performance, keeping a "working edge" long enough to get through a typical day of tasks.
Choose 7Cr17 for budget kitchen knives, survival knives, or multi-tools where rust resistance and the ability to quickly "touch up" the edge are more important than long-term wear resistance.