Crucible Steel Capillary,Cru-Wear® Tool Steel Capillary

Crucible Steel Capillary Cru-Wear® Tool Steel Capillary Product Information -:- For detailed product information, please contact sales. -: Crucible Steel Capillary Cru-Wear® Tool Steel Capillary Synonyms -:- For detailed product information, please contact sales. -:

Crucible Steel Cru-Wear® Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Technical Datasheet: Crucible Steel Cru-Wear® Tool Steel** --- ## **1. Product Overview** **Crucible Cru-Wear®** is a premium **air-hardening, medium-alloy, wear-resistant tool steel** produced using Crucible's proprietary manufacturing technology. It represents a **balanced, high-performance alternative** to traditional cold work steels like D2 and A2, offering a superior combination of **wear resistance, toughness, and dimensional stability**. The "Cru-Wear" name signifies its Crucible origin and primary design focus: exceptional wear performance under demanding conditions. Positioned between AISI A2 and D2 in terms of alloy content, Cru-Wear® features a carefully optimized chemistry that provides **better toughness than D2 and better wear resistance than A2**, making it an exceptionally versatile choice for demanding tooling applications. Its balanced characteristics have made it particularly popular in high-end cutlery, precision tooling, and industrial applications requiring reliable performance with minimal compromise. --- ## **2. Key International Standards & Designations** | Country/System | Standard Designation | Equivalent/Closest Specification | | :--- | :--- | :--- | | **USA (Crucible)** | **Cru-Wear®** | Proprietary Tool Steel | | **USA (AISI/SAE)** | **- -** | Similar to a modified D2/A2 hybrid | | **USA (ASTM)** | **- -** | Proprietary grade | | **ISO** | **- -** | No direct equivalent | | **Common Industry Names** | Balanced Wear Steel, Premium D2-alternative | - | | **Comparable Grades** | **Bohler K110 Modified, Carpenter's similar proprietary grades** | - | **Note:** Cru-Wear® is a proprietary alloy without direct AISI or ISO equivalents. Its balanced composition places it in a unique performance niche within the cold work tool steel family. --- ## **3. Chemical Composition (Typical %)** The composition is carefully balanced to optimize the wear-toughness relationship without excessive alloying. | Element | Weight % (Typical) | Metallurgical Function & Rationale | | :--- | :--- | :--- | | **Carbon (C)** | 1.10 | Provides adequate matrix hardness and supports carbide formation. Lower than D2 for improved toughness. | | **Chromium (Cr)** | 7.50 | Provides good hardenability for air quenching, contributes to wear resistance via chromium carbides, and offers improved corrosion resistance over lower-chromium steels. | | **Vanadium (V)** | 2.50 | **Key wear element.** Forms hard vanadium carbides for enhanced abrasion resistance. Higher than A2, lower than high-vanadium PM steels. | | **Molybdenum (Mo)** | 1.60 | Enhances hardenability, refines grain structure, improves toughness, and contributes to secondary hardening. | | **Tungsten (W)** | 1.60 | Works synergistically with molybdenum to improve hot hardness and wear resistance. | | **Silicon (Si)** | 0.40 | Deoxidizer and strengthens the matrix. | | **Manganese (Mn)** | 0.40 | Aids hardenability. | **Key Metallurgical Advantages:** - **Balanced Carbide Structure:** Contains a moderate volume of fine, complex carbides (primarily chromium and vanadium based) that provide good wear resistance without the brittleness associated with high-carbide-volume steels. - **Air-Hardening Capability:** The balanced chromium, molybdenum, and tungsten content ensures reliable through-hardening with minimal distortion. - **Refined Microstructure:** Crucible's manufacturing process ensures a fine, uniform grain structure for consistent performance. --- ## **4. Physical & Mechanical Properties** ### **4.1 Standard Heat Treatment** * **Annealing:** Heat to 850-870°C (1560-1600°F), slow cool. Annealed hardness: **~210-230 HB**. * **Preheating:** Recommended at 650°C (1200°F) and 850°C (1560°F) for complex parts. * **Austenitizing:** **980-1020°C (1795-1870°F).** Typical temperature is around **995°C (1825°F)**. Soak time: 20-30 minutes per inch. * **Quenching:** **Air cool.** Forced air is recommended for most consistent results. * **Tempering:** **Double tempering recommended.** Temper at **175-550°C (350-1020°F)** depending on application. * **For maximum wear resistance:** 175-205°C (350-400°F) → **61-63 HRC** * **For balanced properties (most common):** 425-540°C (800-1000°F) → **58-60 HRC** * **For maximum toughness:** 550°C (1020°F) → **56-58 HRC** * **Cryogenic Treatment:** Optional but beneficial for maximizing dimensional stability and transforming retained austenite. ### **4.2 Mechanical Properties (Hardened & Double Tempered @ 500°C to ~60 HRC)** | Property | Value / Rating (Typical) | Performance Context | | :--- | :--- | :--- | | **Hardness** | **58 - 62 HRC** (typical working range) | Can be tailored across a wide range via tempering. | | **Wear Resistance** | **Very Good to Excellent** | Significantly better than A2, slightly less than optimally heat-treated D2, but with much better toughness. | | **Impact Toughness** | **Very Good** | **Primary advantage over D2.** Much higher toughness at equivalent hardness levels. | | **Edge Retention** | **Excellent** | Particularly valued in cutlery applications for maintaining a sharp edge. | | **Dimensional Stability** | **Excellent** | Air hardening minimizes distortion and internal stresses. | | **Deep Hardenability** | Good | Can through-harden moderate sections (up to 100-150mm/4-6" in air). | | **Grindability** | **Good** | Better than D2 due to more moderate carbide volume and refined structure. | ### **4.3 Physical Properties (Approximate)** * Density: ~7.80 g/cm³ * Thermal Conductivity: ~28 W/m·K * Coefficient of Thermal Expansion: 11.2 x 10⁻⁶/K * Modulus of Elasticity: 210 GPa --- ## **5. Typical Product Applications** Cru-Wear® is valued for its versatility in applications requiring a balance of wear resistance, toughness, and dimensional stability. * **High-Performance Cutlery & Blades:** * **Premium knives** (hunting, tactical, kitchen) where a balance of edge retention, toughness, and ease of sharpening is desired. * **Industrial blades** for cutting non-metallic materials. * **Precision Tooling:** * **Blank and pierce dies** for medium to long production runs. * **Forming tools, punches, and dies** requiring good wear life and resistance to chipping. * **Thread rolling dies and knurls.** * **Plastic injection mold components** for abrasive plastics. * **Industrial Wear Parts:** * **Gauges, fixtures, and wear plates** requiring dimensional stability. * **Machine components** subject to combined wear and moderate impact. --- ## **6. Processing & Manufacturing Guidelines** * **Machinability (Annealed):** **Fair to Good.** Better than D2, similar to or slightly better than A2. Use appropriate carbide tooling. * **Grindability:** **Good.** One of its advantages over higher-alloy wear steels. Aluminum oxide wheels work well; CBN can be used for high-volume grinding. * **EDM Machining:** Excellent. Standard EDM practices apply. Post-EDM stress relief is recommended for critical tools. * **Polishing:** **Very Good.** Capable of achieving high surface finishes, making it suitable for mold applications. * **Heat Treatment Flexibility:** Can be successfully heat treated in both vacuum and atmospheric furnaces with proper controls. --- ## **7. Comparative Performance & Selection Notes** | Criterion | **Cru-Wear®** | **AISI D2** | **AISI A2** | **CPM 3V** | | :--- | :--- | :--- | :--- | :--- | | **Wear Resistance** | Very Good | **Excellent** | Good | Excellent | | **Toughness** | **Very Good** | Fair | Good | **Excellent** | | **Edge Retention** | Excellent | Excellent | Good | Excellent | | **Corrosion Resistance** | Good (better than D2/A2) | Fair | Fair | Fair | | **Ease of Sharpening** | Good | Fair | Good | Good | | **Cost** | High | Moderate | Moderate | Very High | **When to Choose Cru-Wear®:** 1. You need **better wear resistance than A2** but **better toughness than D2**. 2. Applications involve **moderate shock loading or unpredictable stress** where D2 might chip. 3. **Ease of grinding and machining** is important in tool manufacturing. 4. You want a **versatile, high-performance steel** that performs well across a range of applications without being overly specialized. **The Cru-Wear® Advantage:** It eliminates the need to choose between the extreme wear of D2 and the good toughness of A2 by offering a **well-balanced "best of both" solution** in many applications. --- ## **8. Conclusion** **Crucible Cru-Wear® represents an intelligent, optimized design in tool steel metallurgy, offering a practical balance of properties that addresses the limitations of traditional cold work steels.** It successfully fills the performance gap between A2 and D2, providing toolmakers and engineers with a **reliable, high-performance material that minimizes compromise.** Key strengths include: - **Excellent wear resistance** suitable for demanding tooling applications. - **Superior toughness** compared to other wear-resistant steels at similar hardness levels. - **Good dimensional stability** and manufacturability. - **Proven performance** in both industrial tooling and high-end cutlery markets. For applications where **reliability, versatility, and balanced performance are more valuable than extreme specialization**, Cru-Wear® offers an outstanding solution. It has earned its reputation as a **"go-to" premium tool steel** for those who value predictable performance, ease of use, and the ability to handle a wide range of demanding conditions without failure. --- -:- For detailed product information, please contact sales. -: Crucible Steel Cru-Wear® Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5239 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 Cru-Wear® Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Crucible Steel Capillary Cru-Wear® Tool Steel Capillary -:- For detailed product information, please contact sales. -: Chemical Identifiers Crucible Steel Capillary Cru-Wear® Tool Steel Capillary -:- For detailed product information, please contact sales. -:

Packing of Crucible Steel Capillary Cru-Wear® Tool Steel Capillary -:- 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 Capillary 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 1710 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