Blade Steel

CTS-204P - Blade Steel

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Steel Composition

carbon 1.9 %
chromium 20 %
molybdenum 1 %
vanadium 4 %
cobalt 1 %

Known as a premium grade knife steel, CTS-204P is a highly regarded and efficient blade material made by US-based Carpenter Technology Corporation. The CTS-204P offers exceptional edge retention and corrosion resistance, while maintaining good toughness and wear resistance. This high-performance knife steel is specifically designed to cater to the needs of EDC knife users and knife enthusiasts.

Advantages of CTS-204P as Knife Steel

The primary benefits of CTS-204P as a blade steel include its superb edge retention and corrosion resistance. The superior hardness and durability make it ideal for everyday carry knives, facilitating clean, precise cuts while exhibiting a significantly reduced risk of chip and wear. In addition, its strength and responsiveness make it an ideal choice for heavy-duty cutlery.

The handling and balance aspect of this steel also enhances its appeal to knife users. Its longevity and toughness are guaranteed to serve the user efficiently in long term use, granting a guarantee of superior performance, making CTS-204P for EDC knives a commendable choice.

Disadvantages of CTS-204P for Knives

On the downside, the high carbon content in the CTS-204P does make it more challenging to sharpen than softer knife steels. Thus necessitating higher professional skills or specific tools to maintain its sharpness optimally. Also, its premium performance features come at a higher cost, making it slightly pricey than most medium-range knife steels.

Steel Rating

Steels with good edge retention will stay sharp longer, reducing the need for frequent sharpening

Edge Retention

5/6 Points

Toughness is the steel's ability to absorb energy and deform without breaking


3/6 Points

Corrosion Resistance measures how well the steel can resist rust and oxidation

Corrosion Resistance

5/6 Points

Sharpenability refers to how easily a knife blade can be sharpened to its desired edge


2/6 Points

This is a relative measure based on typical market values. The actual price can vary widel


2/6 Points

A higher HRC number typically indicates a harder steel, which can hold a sharper edge


59 - 61 HRC
Please be aware that this rating should be understood as a comparative measure. It's simply a rough estimation in relation to other knife steels.

Is CTS-204P Rust Resistant?

CTS-204P stands out for its high level of corrosion resistance due to its chromium content. It has a resistance that outperforms many other knife steels under similar conditions. However, although it's highly resistant, it isn't immune to rust, and therefore requires regular maintenance especially in highly acidic or humid environments.

How Durable is CTS-204P?

With an HRC rating of 59-61, CTS-204P stands out for its hardness. This makes the blade incredibly sharp and able to withstand significant wear and tear. The strength of the blade also contributes to its longevity, so kitchens and outdoor enthusiasts can depend on its consistent performance over time.


CTS-204P is recognized for being a reliable blade steel used in high-end knives. It's repute proceeds it, as an excellent choice for knives that require superior edge retention, toughness and resistance to wear, such as in hunting, kitchen use or tactical applications. A CTS-204P knife is regarded as a worthy investment that offers good value for money in the long run.


In conclusion, the CTS-204P is a perfect blend of hardness, toughness, and corrosion resistance, delivering excellent overall performance in a knife blade. Its edge retention is commendable and when coupled with its other features make it a highly sought-after premium knife steel. Despite its minor drawbacks its high-performing features - superior edge retention, significant corrosion resistance and impressive toughness - gives it a high reputation amongst knife users.