forum threadphoinix | Staff posted Today 04:55 PM
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Item 1 of 3
forum threadphoinix | Staff posted Today 04:55 PM
$10: Smith & Wesson Special Tactical CKTAC 8.1in High Carbon S.S. Folding Knife at Amazon
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1. Chemical Composition
The name itself is a shorthand for its recipe:
7 (0.7% Carbon): Provides the hardness and strength needed to hold a sharp edge.
**Cr17 (17% Chromium): A high level of chromium that offers excellent corrosion resistance.
Mo (Molybdenum): Increases strength and enhances the corrosion-fighting power of the chromium.
V (Vanadium): Refines the grain structure, which improves toughness and wear resistance.
Key Performance Characteristics
Corrosion Resistance (High): With 17% Chromium, this steel is very "stainless." It performs exceptionally well in humid environments or kitchen settings where it frequently comes into contact with water and food acids.
Hardness (Moderate to High): It typically reaches a Rockwell hardness of 54–57 HRC, though some high-quality heat treatments can push it closer to 60 HRC.
Edge Retention (Moderate): While it stays sharp longer than basic "surgical" steels (like 420J), it cannot compete with premium "super steels." It is a "working" steel that holds a decent edge but will require regular touching up.
Ease of Sharpening (Excellent): One of its best traits is that it is very easy to sharpen. Even a beginner can bring a dull 7Cr17MoV blade back to a razor edge with basic stones or a pull-through sharpener.
3. How it Compares
To understand where 7Cr17MoV sits in the hierarchy of knife steels, it is helpful to look at its closest "cousins":
vs. 440A: 7Cr17MoV is nearly identical but usually slightly better due to the added Vanadium, which makes it a bit tougher and more wear-resistant.
vs. 8Cr13MoV: 8Cr13MoV (similar to AUS-8) has more carbon and less chromium. This means 8Cr13MoV holds an edge slightly better, but 7Cr17MoV is more rust-resistant.
vs. 440C: 440C is a superior steel with significantly more carbon, offering better edge retention and hardness.
4. Common Applications
Due to its balance of low cost and reliable performance, you will find this steel in:
Survival & Folding Knives: Frequently used by brands like Gerber, Smith & Wesson, and Schrade for their entry-level outdoor lines.
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Smith & Wesson Special Tactical CKTAC 8.1in High Carbon S.S. Folding Knife
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Smith & Wesson Special Tactical CKTAC 8.1in High Carbon S.S. Folding Knife
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