Crucible Steel Tube,Pipe,CPM® CRU-WEAR® Tool Steel Tube,Pipe

Crucible Steel Tube CPM® CRU-WEAR® Tool Steel Tube Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Tube CPM® CRU-WEAR® Tool Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel CPM® CRU-WEAR® Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Crucible CPM® CRU-WEAR® Tool Steel** Crucible CPM® CRU-WEAR® is a premium air-hardening, high-vanadium tool steel manufactured via Crucible's proprietary Particle Metallurgy (CPM) process. Positioned as a "wear-resistant tool steel with exceptional toughness," CRU-WEAR® is engineered to deliver an **optimal balance between high abrasion resistance and superior impact toughness**, effectively bridging the performance gap between traditional high-toughness steels like A2 and ultra-high-wear steels like CPM 10V. Its development focused on creating a tool steel that resists both abrasive wear and chipping or catastrophic failure under demanding conditions. The CPM process is fundamental to CRU-WEAR®'s performance, producing a fine, homogeneous microstructure with a uniform distribution of hard vanadium and chromium carbides. This eliminates the coarse carbide banding inherent in conventional ingot-cast tool steels, resulting in **dramatically improved transverse toughness, excellent dimensional stability during heat treatment, enhanced grindability, and consistent, isotropic mechanical properties**. CRU-WEAR® is designed for applications where tools must withstand severe wear while also surviving shock, heavy loading, or high-stress interruptions without fracturing. --- ## **1. Chemical Composition (Weight %)** CRU-WEAR®'s chemistry is a carefully calibrated blend of carbon, chromium, vanadium, molybdenum, and tungsten. | **Element** | **Carbon (C)** | **Chromium (Cr)** | **Vanadium (V)** | **Molybdenum (Mo)** | **Tungsten (W)** | **Silicon (Si)** | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | **Content** | **1.15** | **7.50** | **2.50** | **1.55** | **1.25** | **0.30** | | **Role** | Provides the base for carbide formation and matrix hardness. Optimized level supports high hardness while retaining core toughness. | Primary contributor to deep air hardenability and wear resistance via chromium carbides (Cr₇C₃). Imparts mild corrosion resistance. | **Key wear element.** Forms a significant volume of very hard vanadium carbides (VC), providing enhanced abrasion resistance without excessively compromising toughness. | Enhances hardenability, refines grain structure, and improves toughness and tempering resistance. | Contributes to hot hardness, secondary hardening, and wear resistance; forms stable carbides. | Deoxidizer and solid solution strengthener, kept low to maximize toughness. | *Note: Iron (Fe) constitutes the remainder. The composition can be viewed as a powder-metallurgy enhanced and optimized modification of a D2-type steel with added vanadium and tungsten.* --- ## **2. Physical & Mechanical Properties** *Typical properties after proper heat treatment to a working hardness of 60-62 HRC.* * **Density:** ~7.79 g/cm³ (0.281 lb/in³) * **Modulus of Elasticity:** ~210 GPa (30.5 x 10⁶ psi) * **Thermal Conductivity:** Moderate for a tool steel. * **Coefficient of Thermal Expansion:** ~10.5 x 10⁻⁶/°C (20-200°C) * **Hardenability:** **Excellent.** Deep air-hardening characteristics suitable for large, complex sections. * **Hardness (Typical Working Range):** **58 - 64 HRC.** The most common and optimal working hardness is **60-62 HRC**, where it achieves its renowned balance of properties. * **Abrasion Resistance:** **Very High.** Significantly better than A2 and D2 tool steels due to the vanadium carbide content. Its wear resistance approaches that of higher-alloy steels while maintaining much better toughness. * **Impact Toughness:** **Excellent for its wear resistance level.** This is CRU-WEAR®'s defining characteristic. It possesses substantially higher impact toughness than CPM 10V and other high-vanadium steels, and is notably tougher than conventional D2, especially in the transverse direction. It offers toughness comparable to or better than A2 at similar hardness. * **Dimensional Stability:** **Excellent.** Exhibits minimal distortion during quenching due to its air-hardening nature and homogeneous PM microstructure. * **Grindability:** **Good (for a high-wear steel).** The fine, uniform carbides make it significantly easier to grind than conventionally processed high-vanadium steels. --- ## **3. Heat Treatment** * **Annealing:** Heat to 870-900°C (1600-1650°F), slow cool. Annealed hardness: 220-250 HB. * **Stress Relieving:** 650-675°C (1200-1250°F), hold, then slow cool. * **Preheating:** **Essential.** Use a double preheat: First at 540-650°C (1000-1200°F), then at 815-870°C (1500-1600°F). * **Austenitizing:** **1010-1065°C (1850-1950°F).** A common and effective temperature is **1025-1040°C (1875-1905°F)** for the best overall balance. Lower temperatures favor toughness; higher temperatures favor wear resistance and hardness. * **Quenching:** **Air quench** (still or forced air). For very large sections, high-pressure gas quenching is recommended. **Do not oil quench.** * **Tempering:** **Mandatory Double Temper.** Temper immediately after quenching. **Two tempers**, each for 2 hours, are standard. **Typical tempering range: 540-595°C (1000-1100°F)** to achieve 60-62 HRC. For applications requiring higher hardness (63-64 HRC) at the expense of some toughness, temper at 205-425°C (400-800°F). --- ## **4. Key Applications** CRU-WEAR® is ideal for demanding tooling applications that experience both significant wear and mechanical stress. * **Heavy-Duty Blanking, Punching & Forming:** Punches, dies, and shear blades for stamping, fine-blanking, and forming high-strength or abrasive materials. * **Industrial Knives & Slitters:** Blades for cutting paper, plastics, composites, and non-ferrous metals where extreme edge retention and resistance to chipping are critical. * **Precision Gages, Mandrels & Wear Parts:** Thread gauges, guide rolls, and wear plates requiring dimensional stability and high resistance to abrasion. * **Woodworking & Composite Cutting Tools:** Planer knives, chipper knives, and router bits for processed woods and abrasive composites. * **Cold Work Tooling:** Lamination dies, forming rolls, and coining tools. * **High-Performance Cutlery & Tooling Inserts:** Premium hard-use knives and industrial inserts requiring a balance of edge retention, ease of sharpening, and durability. --- ## **5. International Standards & Cross-References** CRU-WEAR® is a proprietary CPM grade. Its composition is similar to some modified standard grades. * **AISI/SAE:** No direct equivalent. Its composition is closest to a **PM-processed, high-vanadium modification of D2**. * **UNS:** No standard designation. * **European (EN):** Roughly similar in concept to a modified **1.2379 (X153CrMoV12)** but with a different vanadium/tungsten balance. * **Common Industry Comparisons:** Often directly compared to and positioned between **CPM D2** (tougher, more wear-resistant) and **CPM 10V** (tougher but less wear-resistant). It is Crucible's direct analog to other manufacturers' "3V"-type tough-wear grades. --- ## **6. Advantages & Limitations** **Advantages:** * **Superior Toughness-to-Wear Ratio:** Arguably its greatest strength, offering one of the best practical balances between these often-opposing properties in a tool steel. * **Excellent Dimensional Stability:** Minimal distortion simplifies heat treatment of complex tools. * **Good Grindability & Machinability:** Easier to finish and sharpen than many other high-performance tool steels. * **Air-Hardening:** Simplifies the heat treatment process and reduces the risk of quench cracking. * **Consistent, Isotropic Performance:** Predictable properties in all orientations due to the PM microstructure. **Limitations:** * **Not Stainless:** Will corrode if not properly protected; corrosion resistance is similar to D2 (fair). * **Not the Ultimate in Any Single Property:** While excellently balanced, it does not match the pure wear resistance of CPM 10V/15V nor the ultimate toughness of lower-alloy steels like S7 or A2. * **Cost:** Higher than conventional tool steels like D2 or A2 due to PM processing. --- ## **7. Summary** **Crucible CPM® CRU-WEAR® is a strategically engineered, balanced-performance tool steel that solves the common dilemma of choosing between wear resistance and toughness.** By leveraging the CPM process to optimize a high-vanadium, air-hardening composition, it delivers a reliable and versatile material for demanding industrial tooling and cutting applications. For tool designers and manufacturers facing simultaneous abrasive wear and mechanical stress, CRU-WEAR® provides a robust, high-performance solution that maximizes tool life and reliability, reducing downtime and operational costs. It is the definitive choice when the application demands that a tool be both hard-wearing and durable under punishing conditions. -:- For detailed product information, please contact sales. -: Crucible Steel CPM® CRU-WEAR® Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6969 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® CRU-WEAR® Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Tube CPM® CRU-WEAR® Tool Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Tube CPM® CRU-WEAR® Tool Steel Tube -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Tube CPM® CRU-WEAR® Tool Steel Tube -:- 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 Tube 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 3440 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