Crucible Steel Sheet,Plate,CPM® 154 Tool Steel Sheet,Plate

Crucible Steel Sheet/Plate CPM® 154 Tool Steel Sheet/Plate Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Sheet/Plate CPM® 154 Tool Steel Sheet/Plate Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel CPM® 154 Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Crucible CPM® 154 Tool Steel** Crucible CPM® 154 is a premium particle metallurgy (PM) martensitic stainless tool steel renowned for its **excellent combination of corrosion resistance, good wear resistance, and superior toughness**. As a PM evolution of the conventional 154CM alloy, it addresses the limitations of ingot-cast stainless steels by providing a cleaner, more homogeneous, and isotropic microstructure. This makes CPM 154 a high-performance, all-around stainless steel ideal for applications requiring reliable performance in demanding or corrosive environments where standard 440C or D2 steels fall short. Manufactured via the Crucible Particle Metallurgy (CPM) process, CPM 154 features a fine and uniform distribution of carbides, which eliminates the coarse carbide stringers and segregation typical of conventionally melted 154CM. This results in **enhanced toughness (especially in the transverse direction), improved grindability and polishability, better dimensional stability during heat treatment, and more consistent mechanical properties** in all orientations. CPM 154 strikes an optimal balance, making it a versatile choice for precision components, cutlery, and tooling that must resist both wear and corrosion. --- ## **1. Chemical Composition (Weight %)** The composition is based on the 154CM specification but optimized for the CPM process, with tight control on impurities. | **Element** | **Carbon (C)** | **Chromium (Cr)** | **Molybdenum (Mo)** | **Vanadium (V)** | **Manganese (Mn)** | **Silicon (Si)** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | 1.05 | 14.00 | 4.00 | 0.40 | 0.50 | 0.30 | | **Role** | Provides hardness and forms chromium and molybdenum carbides for wear resistance. Optimized level supports high hardness while maintaining good toughness in a stainless matrix. | Primary element imparting **martensitic hardenability** and **stainless (corrosion-resistant) properties** through the formation of a protective chromium oxide (Cr₂O₃) layer. | Enhances hardenability, increases strength (especially at elevated temperatures), and forms hard molybdenum carbides for improved wear resistance. | Forms fine vanadium carbides that refine grain size, improve toughness, and enhance wear resistance without forming large, brittle carbides. | Aids in deoxidation and contributes to hardenability. | Deoxidizer and solid solution strengthener. | *Note: Iron (Fe) constitutes the remainder. Sulfur and phosphorus are kept at very low levels to maximize toughness and corrosion resistance.* --- ## **2. Physical & Mechanical Properties** *Typical properties after proper heat treatment to a working hardness of 58-61 HRC.* * **Density:** ~7.64 g/cm³ (0.276 lb/in³) * **Modulus of Elasticity:** ~200 GPa (29 x 10⁶ psi) * **Thermal Conductivity:** Moderate for a stainless steel. * **Coefficient of Thermal Expansion:** ~10.8 x 10⁻⁶/°C (20-100°C) * **Corrosion Resistance:** **Very Good.** Superior to non-stainless tool steels (like D2 or A2) and offers excellent resistance to tarnishing, rust, and corrosion in many atmospheric, fresh water, and mild chemical environments. Comparable to or slightly better than 440C. * **Hardness (Typical Working Range):** **57 - 62 HRC.** Most commonly and optimally used at **59-61 HRC**, achieving an excellent balance of edge holding, toughness, and ease of sharpening. * **Wear Resistance:** **Very Good.** Better than many other stainless steels (e.g., 440C, AUS-8) due to its higher carbon and molybdenum content, and fine, uniform carbide distribution. Suitable for applications with moderate abrasive wear. * **Toughness:** **Excellent for a stainless steel.** The CPM microstructure provides significantly higher impact toughness and better resistance to chipping than conventional 154CM or 440C, especially in critical transverse orientations. * **Grindability & Polishability:** **Excellent.** One of its standout features. The fine carbides allow it to be ground and sharpened relatively easily and polished to a superb, mirror-like finish, which is critical for plastic molds and high-end cutlery. --- ## **3. Heat Treatment** Heat treatment is straightforward but requires attention to detail to maximize corrosion resistance and mechanical properties. * **Annealing:** Heat to 900-925°C (1650-1700°F), slow cool. Annealed hardness: 240-270 HB. * **Stress Relieving (After Machining):** 650-700°C (1200-1290°F), hold, then slow cool. * **Preheating:** **Recommended.** Preheat at 815-870°C (1500-1600°F). * **Austenitizing:** **1035-1065°C (1895-1950°F).** A common temperature is **1045-1055°C (1915-1930°F)**. * **Quenching:** **Air quench** or positive pressure gas quench. **Oil quenching is not recommended** as it can compromise corrosion resistance and surface finish. * **Tempering:** **Mandatory Double Temper.** Temper immediately after quenching. **Two tempers**, each for 2+ hours, are standard. * **Typical Tempering Range:** **205-540°C (400-1000°F).** * For maximum corrosion resistance and a hardness of ~59-61 HRC, temper at **205-425°C (400-800°F)**. * For higher toughness with a slight sacrifice in corrosion resistance and hardness, temper at **540-565°C (1005-1050°F)**. * **Avoid prolonged exposure in the 425-540°C (800-1000°F) range** to minimize the risk of temper embrittlement and reduced corrosion resistance. --- ## **4. Key Applications** CPM 154 is a versatile stainless steel suitable for a wide range of high-performance applications. * **High-End Cutlery & Surgical Instruments:** Premium kitchen knives, pocket knives, and surgical tools where corrosion resistance, edge retention, ease of sharpening, and a fine finish are paramount. * **Plastic Injection Molds & Cores:** Cavities, cores, and ejector pins for corrosive or abrasive plastics (e.g., PVC, flame-retardant materials) where superior polishability and corrosion resistance prevent part sticking and mold degradation. * **Precision Gauges & Wear Parts:** Measuring instruments, bearing surfaces, and valve components used in humid or mildly corrosive environments. * **Food Processing & Marine Components:** Blades, mixer parts, and pump components where hygiene, corrosion resistance, and wear life are important. * **General Purpose Stainless Tooling:** Jigs, fixtures, and guides in machine shops where rust prevention is desired without sacrificing tool steel performance. --- ## **5. International Standards & Cross-References** CPM 154 is the PM version of the conventional 154CM alloy. * **AISI/SAE:** **154CM** (Modified 440C with Molybdenum) * **UNS:** No standard UNS for this exact PM composition. Conventional 154CM is roughly S66286. * **European (EN):** No direct equivalent. Similar in concept to some high-grade martensitic stainless steels. * **Japanese (JIS):** No direct JIS equivalent. Similar to some high-grade stainless steels in the AUS series. * **Common Trade Names/Equivalents:** **CPM 154CM**, **154CM PM**. It is often compared to other high-performance PM stainless steels like **Böhler M390** (higher vanadium) and **CTS-204P**. --- ## **6. Advantages & Limitations** **Advantages:** * **Excellent Property Balance:** Arguably the best all-around balance of corrosion resistance, wear resistance, and toughness among commonly available stainless tool steels. * **Superior Toughness & Consistency:** The CPM process provides significantly better and more reliable toughness than conventional 154CM or 440C. * **Outstanding Grindability & Polishability:** Easy to work with and capable of achieving exceptional surface finishes. * **Good Dimensional Stability:** Air hardening minimizes distortion during heat treatment. * **Proven Versatility:** A trusted material for both industrial tooling and high-end consumer products. **Limitations:** * **Not the Ultimate in Wear Resistance:** While very good, it is outperformed in pure abrasion by high-vanadium steels like CPM S30V/S35VN or CPM 10V. * **Moderate Cost:** More expensive than conventional 440C or 154CM due to PM processing. * **Heat Treatment Required:** Must be properly hardened and tempered to achieve its designed properties. * **Limited Maximum Service Temperature:** Not designed for high-temperature applications; begins to soften significantly above ~425°C (800°F). --- ## **7. Summary** **Crucible CPM® 154 is the definitive premium, all-purpose stainless tool steel, offering a rare and valuable synergy of key engineering properties.** It successfully bridges the gap between the corrosion resistance of stainless steels and the performance of high-quality tool steels. For manufacturers, mold makers, and knifemakers who refuse to compromise between corrosion resistance, wear life, and toughness, CPM 154 provides a reliable, high-performance solution that simplifies material selection and delivers consistent results. Its excellent polishability and workability further enhance its value, making it a preferred choice for applications where both function and finish are critical. -:- For detailed product information, please contact sales. -: Crucible Steel CPM® 154 Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6972 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Crucible Steel CPM® 154 Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Sheet,Plate CPM® 154 Tool Steel Sheet,Plate -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Sheet,Plate CPM® 154 Tool Steel Sheet,Plate -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Sheet/Plate CPM® 154 Tool Steel Sheet/Plate -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Sheet/Plate drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3443 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition