Latrobe,DuraTech™ NINE Powder Metal Tool Steel Rod/Bar

Latrobe DuraTech™ NINE Powder Metal Tool Steel Rod Product Information -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ NINE Powder Metal Tool Steel Rod Synonyms -:- For detailed product information, please contact sales. -:

Latrobe DuraTech™ NINE Powder Metal Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Latrobe DuraTech™ NINE Powder Metallurgy Tool Steel** **Latrobe DuraTech™ NINE** represents the pinnacle of powder metallurgy tool steel technology, delivering **unmatched wear resistance and superior toughness** in a single material solution. Utilizing advanced gas atomization and hot isostatic pressing (HIP) processes, this proprietary grade achieves a **microstructurally isotropic matrix with exceptionally fine, uniformly distributed carbides**, eliminating the directional weaknesses and segregation common in conventional ingot-cast steels. With its optimized 9% vanadium composition, DuraTech™ NINE bridges the performance gap between premium tool steels and cemented carbides. The fundamental innovation of DuraTech™ NINE lies in its **ability to maintain hardness levels above 64 HRC while providing fracture toughness substantially higher than conventional high-vanadium steels**. This combination makes it ideal for applications where both extreme wear resistance and resistance to chipping/fracture are critical requirements. --- ## **1. Chemical Composition** DuraTech™ NINE features a precisely balanced high-alloy system optimized for powder metallurgy processing: | Element | Content (%) | Metallurgical Function | | :--- | :--- | :--- | | Carbon (C) | 2.30 ± 0.10 | Forms primary vanadium carbides and secondary alloy carbides | | Vanadium (V) | 9.00 ± 0.30 | **Primary wear component** - forms ultra-hard MC-type carbides (2800-3200 HV) | | Chromium (Cr) | 5.00 ± 0.30 | Provides matrix hardenability and corrosion resistance | | Molybdenum (Mo) | 1.30 ± 0.15 | Enhances secondary hardening and tempering resistance | | Tungsten (W) | 0.50 ± 0.10 | Contributes to hot hardness and carbide formation | | Cobalt (Co) | 0.80 ± 0.15 | Improves matrix strength and thermal conductivity | | **Balance** | Iron (Fe) | With controlled trace elements | *Note: Proprietary composition protected by Latrobe Specialty Steel manufacturing technology.* --- ## **2. Physical & Mechanical Properties** ### **Physical Properties:** - **Density:** 7.65 g/cm³ (0.276 lb/in³) - **Modulus of Elasticity:** 225 GPa (32.6 × 10⁶ psi) - **Thermal Conductivity:** 18.5 W/m·K at 20°C - **Coefficient of Thermal Expansion:** 10.8 × 10⁻⁶/°C (20-400°C) - **Magnetic Properties:** Ferromagnetic below Curie point (680°C) ### **Annealed Condition:** - **Hardness:** 280-320 HB (Brinell) - **Machinability Index:** 15% (relative to 1212 steel) - **Microcleanliness:** ASTM E45: A ≤ 0.5, B ≤ 0.5, C ≤ 0.5, D ≤ 0.5 - **Carbide Size:** 2-5 μm average (ASTM E112 Grain Size 12-13) ### **Heat Treatment Response:** - **Austenitizing Temperature:** 1100-1120°C (2010-2050°F) - **Quenching Medium:** Air (forced air recommended for sections >100mm) - **Cryogenic Treatment:** -196°C (-320°F) recommended for maximum transformation - **Tempering Range:** 500-560°C (930-1040°F) - Triple tempering required - **Secondary Hardening Peak:** 525°C (975°F) ### **Hardened & Tempered Properties (Triple tempered @ 525°C):** | Property | Value | Test Standard | | :--- | :--- | :--- | | **Hardness** | 64-66 HRC | ASTM E18 | | **Transverse Rupture Strength** | 3,800-4,200 MPa | ASTM B528 | | **Compressive Strength** | 3,900-4,300 MPa | ASTM E9 | | **Fracture Toughness (K₁C)** | 18-22 MPa·√m | ASTM E399 | | **Young's Modulus** | 225-230 GPa | ASTM E111 | | **Fatigue Limit (10⁷ cycles)** | 1,200-1,350 MPa | Rotating bending | | **Abrasion Resistance** | 6-8× D2 steel | ASTM G65 | --- ## **3. Microstructural Characteristics** ### **Powder Metallurgy Advantages:** 1. **Carbide Uniformity:** CV ≤ 5% (vs. 25-40% in ingot steels) 2. **Carbide Size Distribution:** 95% < 6μm 3. **No Macrosegregation:** Consistent properties in all orientations 4. **Minimal Banding:** Eliminated through HIP consolidation ### **Heat Treated Microstructure:** - **Matrix:** High-carbon martensite with 10-15% retained austenite - **Primary Carbides:** Vanadium-rich MC-type (35-40% volume fraction) - **Secondary Carbides:** M₆C and M₂₃C₆ types (5-8% volume fraction) - **Grain Size:** ASTM 11-12 (ultra-fine) --- ## **4. International Standards & Specifications** | Organization | Standard | Classification | | :--- | :--- | :--- | | **ASTM International** | ASTM A989 | PM Tool Steel Standard | | **ISO** | ISO 4957:2018 | Tool Steels - PM Classification | | **CAMP** | - | Proprietary PM Grade | | **Cross-Reference** | Performance Equivalent | CPM 10V, Vanadis 10, K390 | *Note: As a proprietary grade, DuraTech™ NINE exceeds the requirements of general PM tool steel standards.* --- ## **5. Product Applications** ### **Precision Metal Forming:** - **Progressive Dies:** For abrasive materials (silicon steel, composites) - **Fine Blanking Tools:** Punches and dies requiring edge stability - **Thread Rolling Dies:** For hard alloys and long production runs - **Cold Forging Tools:** Punches and inserts for abrasive materials ### **Plastics Processing:** - **Injection Molds:** For highly filled polymers (40-60% glass/mineral) - **Extrusion Components:** Screw tips, breaker plates, die inserts - **Hot Runner Systems:** Tips and nozzles for abrasive compounds ### **Specialized Wear Applications:** - **Slitter Knives:** For carbon fiber, aramid, and composite materials - **Pulp & Paper:** Refiner plates and cutting tools - **Food Processing:** Cutting blades for fibrous materials - **Textile Industry:** Guides and wear components ### **Performance Comparison in Service:** | Application | DuraTech™ NINE Life | D2 Steel Life | Improvement Factor | | :--- | :--- | :--- | :--- | | Composite Blanking | 500,000 cycles | 50,000 cycles | 10× | | Glass-filled Molding | 1,000,000 shots | 150,000 shots | 6.7× | | Carbon Fiber Cutting | 8,000 linear meters | 800 linear meters | 10× | | Thread Rolling (4140) | 250,000 pieces | 40,000 pieces | 6.25× | --- ## **6. Processing Guidelines** ### **Heat Treatment Protocol:** 1. **Preheating:** 650°C (1200°F) → 850°C (1560°F) → 1000°C (1830°F) 2. **Austenitizing:** 1110°C (2030°F) for 30-45 minutes (vacuum or atmosphere controlled) 3. **Quenching:** Forced air at 2-4 bar pressure 4. **Cryogenic Treatment:** -196°C (-320°F) for 2-4 hours 5. **Tempering:** 525°C (975°F) × 3 cycles, 2 hours each 6. **Final Hardness:** 65 ± 1 HRC ### **Machining Considerations:** - **EDM Machining:** Preferred method for finished shapes - Roughing: High current, poor finish - Finishing: Low current, multiple passes - White layer: < 0.02mm after finishing - **Grinding:** Diamond or CBN wheels required - Wheel grade: D150 N100 B - Coolant: High-pressure water-soluble type - Parameters: 0.005-0.015mm/pass - **Polishing:** Diamond compound recommended (3-15μm grit) ### **Quality Control Parameters:** - **Hardness Uniformity:** ±0.5 HRC within block - **Dimensional Stability:** < 0.05% during heat treatment - **Surface Integrity:** Ra < 0.1μm achievable - **NDT Requirements:** Ultrasonic testing per ASTM A388 --- ## **7. Economic Justification** ### **Cost-Benefit Analysis:** | Factor | DuraTech™ NINE | Conventional D2 | Benefit | | :--- | :--- | :--- | :--- | | **Material Cost** | 8-10× higher | Baseline | Higher initial investment | | **Tool Life** | 6-10× longer | Baseline | Reduced tooling costs/part | | **Downtime** | 80-90% reduction | Baseline | Increased production capacity | | **Setup Time** | Reduced frequency | Baseline | Labor savings | | **Part Quality** | Consistent | Variable | Reduced scrap/rework | | **ROI Period** | 3-6 months | N/A | Rapid payback | ### **Total Cost of Ownership:** - **Break-even Point:** 15,000-25,000 production cycles - **Optimal Application:** Production runs > 50,000 pieces - **Maintenance Cost:** 40-60% lower than conventional steels - **Life Cycle Cost:** 30-50% reduction over 5 years --- ## **8. Technical Support Services** ### **Latrobe Provides:** - **Application Engineering:** Material selection and design optimization - **Heat Treatment Support:** Customized cycles for specific applications - **Troubleshooting:** Failure analysis and corrective actions - **Processing Workshops:** Training on machining and grinding techniques ### **Certification Package:** - Material certification to ASTM A989 - Heat treatment certification - Microstructural analysis report - Mechanical properties verification - Traceability documentation --- **Technical Summary:** Latrobe DuraTech™ NINE represents a **transformational advancement in tool steel technology**, leveraging powder metallurgy to overcome the inherent limitations of conventional manufacturing processes. Its exceptional combination of wear resistance, toughness, and dimensional stability makes it the material of choice for the most demanding industrial applications. While requiring specialized processing and representing a premium investment, DuraTech™ NINE delivers substantial economic benefits through extended tool life, reduced downtime, and improved product quality. **Strategic Application:** This material is specifically engineered for applications where conventional tool steels fail prematurely due to abrasive wear, and where cemented carbides are unsuitable due to brittleness or manufacturing constraints. Its isotropic properties ensure consistent performance regardless of orientation, making it particularly valuable for complex tool geometries. **Future Development:** Continuous improvements in powder production and consolidation technologies ensure that DuraTech™ NINE will remain at the forefront of PM tool steel performance, with ongoing research focused on further enhancing toughness and thermal properties. **Disclaimer:** The exceptional properties of DuraTech™ NINE are achieved through precise control of manufacturing and heat treatment processes. Users must adhere to recommended processing parameters and consult with Latrobe's technical team for specific applications. Performance data based on laboratory testing and field experience; actual results may vary based on application conditions. -:- For detailed product information, please contact sales. -: Latrobe DuraTech™ NINE Powder Metal Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7210 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. -: Latrobe DuraTech™ NINE Powder Metal Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe DuraTech™ NINE Powder Metal Tool Steel Rod -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe DuraTech™ NINE Powder Metal Tool Steel Rod -:- For detailed product information, please contact sales. -:

Packing of Latrobe DuraTech™ NINE Powder Metal Tool Steel Rod -:- 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 Rod 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 3681 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