Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder

Latrobe Dynavan™ ASTM T15 Super High Speed Steel Spherical Powder Product Information -:- For detailed product information, please contact sales. -: Latrobe Dynavan™ ASTM T15 Super High Speed Steel Spherical Powder Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder characteristics -:- For detailed product information, please contact sales. -: Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Latrobe Dynavan™ ASTM T15 Super High Speed Steel Product Information -:- For detailed product information, please contact sales. -: # **Latrobe Dynavan™ ASTM T15 Super High Speed Steel** ## **Premium Tungsten-Based Super HSS for Maximum Wear and Hot Hardness** Latrobe Dynavan™ T15 represents the pinnacle of super high-speed steel technology, combining exceptionally high tungsten and vanadium content with substantial cobalt addition to deliver unparalleled wear resistance and hot hardness. As an ASTM A600 T15 grade, it stands as one of the most capable and durable conventional tool steels for extreme machining applications, offering performance characteristics that bridge the gap between standard HSS and cemented carbides. Dynavan™ T15 is engineered for the most demanding cutting conditions where both extreme abrasion resistance and sustained hot hardness are paramount. --- ### **Key Features & Benefits** - **Exceptional Wear Resistance**: Ultra-high vanadium content (4.5-5.0%) provides maximum abrasion resistance among standard HSS grades - **Superior Hot Hardness**: 5% cobalt combined with high tungsten creates outstanding red hardness retention at temperatures exceeding 600°C (1110°F) - **Maximum Cutting Performance**: Enables higher cutting speeds and feeds than virtually any other conventional HSS - **Extended Tool Life**: Superior edge retention and wear resistance translate to dramatically longer production runs - **Premium Substrate for Coatings**: Ultra-high base hardness and thermal stability provide optimal foundation for advanced PVD/CVD coatings - **Uncompromising Performance**: The ultimate solution for machining highly abrasive, work-hardening, or high-temperature materials --- ### **Chemical Composition (Typical %, ASTM A600 T15)** | Element | Carbon (C) | Tungsten (W) | Vanadium (V) | Chromium (Cr) | Cobalt (Co) | Other | |---------|------------|--------------|--------------|---------------|-------------|-------| | **Content** | 1.50 - 1.60 | 11.75 - 13.00 | 4.50 - 5.00 | 3.75 - 5.00 | 4.50 - 5.25 | Mo: ≤1.00
Si: 0.15-0.40
Mn: 0.15-0.40 | *Note: The "Dynavan" designation emphasizes the high vanadium content critical to this grade's performance. Minimal molybdenum content distinguishes it from M-series steels. This composition maximizes both abrasion resistance (via vanadium carbides) and hot hardness (via tungsten and cobalt).* --- ### **Physical & Mechanical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 8.67 g/cm³ (higher than Mo-based HSS due to high tungsten) | | **Thermal Conductivity** | 20-23 W/m·K at 20°C (lower due to high alloy content) | | **Specific Heat Capacity** | 0.44 kJ/kg·K at 20°C | | **Coefficient of Thermal Expansion** | 9.8 × 10⁻⁶/K (20-400°C) | | **Hardness (Annealed)** | 255-280 HB | | **Hardness (Heat Treated)** | **66-68 HRC** (typical optimized working range) | | **Hot Hardness Retention** | Maintains ~61-63 HRC at 600°C (1110°F) – exceptional | | **Transverse Rupture Strength** | 2,600-3,200 MPa (at 67 HRC) | | **Compressive Strength** | 3,400-4,000 MPa (at 67 HRC) | | **Modulus of Elasticity** | 230-240 GPa | | **Impact Toughness** | Low-Moderate – optimized for wear/hot hardness over shock resistance | --- ### **Heat Treatment Guidelines** #### **Annealing** - **Temperature**: 870-900°C (1600-1650°F) - **Method**: Slow furnace cool at ≤15°C (27°F) per hour to 600°C (1110°F), then air cool - **Resultant Hardness**: 255-280 HB - **Special Note**: Higher temperatures required due to high tungsten content #### **Stress Relieving** - **Temperature**: 680-710°C (1255-1310°F) - **Hold Time**: 2-3 hours per inch of thickness minimum - **Cooling**: Very slow furnace cool to 500°C (930°F), then air cool #### **Hardening (Requires Extreme Precision)** 1. **Preheating**: **Double or triple preheat critical**
• First: 750-800°C (1380-1470°F)
• Second: 950-980°C (1740-1795°F)
• Optional Third: 1050-1080°C (1920-1975°F) 2. **Austenitizing**: **1260-1280°C (2300-2335°F)** – precise control ±3°C essential 3. **Soak Time**: 2-4 minutes per inch of cross-section (minimum 3 minutes) 4. **Quenching**: Oil or salt bath; air cooling generally insufficient 5. **Immediate Handling**: Cool to 50-65°C (120-150°F) before proceeding #### **Tempering (Critical for Performance)** - **Temperature Range**: 540-565°C (1005-1050°F) - **Cycles**: **Triple tempering mandatory** – quadruple tempering highly recommended - **Duration**: Minimum 2.5 hours per cycle, slow cool between cycles - **Target Hardness**: 66-68 HRC typically achieved at 540-550°C (1005-1020°F) - **Critical Avoidance**: Never temper between 205-480°C (400-900°F) #### **Sub-Zero Treatment (Highly Recommended)** - **Application**: Essential for maximum transformation of retained austenite - **Temperature**: -100 to -120°C (-148 to -184°F) - **Timing**: After quenching, before first temper - **Duration**: 3-5 hours minimum - **Benefit**: Particularly important for achieving maximum hardness and dimensional stability --- ### **International Standards & Equivalent Grades** | Standard | Grade Designation | Notes | |----------|-------------------|-------| | **ASTM** | A600 T15 | Primary specification (UNS T12015) | | **ISO** | HS12-0-5-5 | ISO 4957 designation | | **DIN** | 1.3202 / S 12-0-5-5 | German standard | | **JIS** | SKH10 / T15 | Japanese industrial standard | | **AFNOR** | HS12-0-5-5 (Z80WDCV 12-05-05-05) | French association standard | | **GB** | W12Mo3Cr4V3Co5Si | Chinese approximate equivalent | | **UNS** | T12015 | Unified Numbering System | | **Proprietary** | Dynavan™ | Latrobe Special Steel premium designation | --- ### **Typical Applications** #### **Ultra-High-Performance Cutting Tools** - **Premium End Mills**: For machining hardened steels (50-65 HRC), high-temperature alloys, and highly abrasive composites - **Precision Boring Tools**: Fine boring bars and inserts for superalloys requiring maximum edge retention - **Gear Manufacturing Tools**: Premium hobs and shaper cutters for hardened gear materials - **Threading Tools**: High-performance taps and thread mills for production machining of difficult materials - **Broaching Tools**: Internal and surface broaches requiring extreme wear resistance - **Solid Carbide Alternatives**: In applications requiring HSS toughness with near-carbide wear performance #### **Specialized Industrial Tooling** - **Cold Forming Tools**: Punches, dies, and headers for highly abrasive or work-hardening materials - **Fine Blanking Tools**: Tools requiring extreme edge retention in production environments - **Woodworking & Composite Tools**: Router bits, trimming tools for abrasive composites (CFRP, GFRP, ceramic matrix) - **Knives & Industrial Blades**: Cutting blades for the most abrasive non-metallic materials #### **Industry-Leading Applications** - **Aerospace Manufacturing**: Machining Inconel, Waspaloy, titanium alloys, and composite components - **Energy Sector**: Tools for hardened valve components, turbine blades, and oilfield equipment - **Automotive Performance**: Machining hardened transmission components and high-performance engine parts - **Medical Device Manufacturing**: Cutting tools for cobalt-chrome alloys and titanium implants - **Die & Mold**: Core pins and inserts for highly abrasive plastic molding materials --- ### **Machining & Fabrication Notes** #### **Machinability (Annealed Condition)** - **Rating**: 15-25% of B1112 free-machining steel – **extremely difficult to machine** - **Recommended Tools**: **Carbide tools exclusively** – premium grades with wear-resistant coatings - **Cutting Speeds**: 3-7 m/min (10-20 SFM) for turning operations - **Feed Rates**: Very light feeds with sharp, positive rake geometries - **Coolant**: **Essential** – high-performance synthetic coolant recommended - **Tool Geometry**: Sharp cutting edges, adequate clearance, chip breakers essential #### **Grindability** - **Relative Rating**: 20-30 (vs. 100 for annealed O1 tool steel) – **exceptionally difficult to grind** - **Abrasive Requirements**: **Diamond or CBN wheels mandatory** for production grinding - **Wheel Maintenance**: Frequent dressing required – soft-grade, open-structure wheels - **Coolant**: **High-pressure flood coolant essential** to prevent thermal damage - **Grinding Parameters**: Very light infeeds (0.002-0.010 mm/pass), moderate wheel speeds #### **EDM Machining** - Challenging due to high tungsten and vanadium content - Generates significant hard, brittle recast layer (white layer) - **Stress relieving after rough EDM is absolutely critical** - Final heat treatment should follow finish EDM - Extensive post-EDM grinding/polishing required to remove affected layer --- ### **Quality Assurance & Metallurgical Standards** #### **Microstructural Requirements** - **Carbide Distribution**: Uniform dispersion of ultra-hard MC (vanadium) carbides - **Maximum Carbide Size**: Strictly controlled – typically ≤8 microns for premium quality - **Carbide Network**: Complete absence of continuous carbide networks - **Grain Size**: ASTM 10 or finer - **Decarburization**: ≤0.04 mm per side on finished products - **Non-Metallic Inclusions**: ASTM E45, Method D, ≤0.5 total rating (premium quality) #### **Testing & Certification** - Full traceability from electrode to finished product - Complete chemical analysis with emphasis on vanadium and cobalt verification - Hardness testing at multiple production stages - **Hot hardness testing** – standard evaluation at elevated temperatures - **Comprehensive carbide analysis** – size, distribution, type, and morphology - Microcleanliness rating per ASTM E45 and SEP 1571 - Ultrasonic testing for critical applications - Certified material test reports including complete metallurgical data --- ### **Available Product Forms** | Form | Standard Sizes | Condition | Surface Finish | |------|---------------|-----------|----------------| | **Round Bars** | 5mm - 150mm diameter | Annealed | Centerless Ground, Super Polish | | **Precision Ground Flat Stock** | 6-40mm thickness | Annealed | Ground & Polished (±0.02mm) | | **Forged Blanks** | Custom dimensions | Annealed | As-forged, Precision machined | - **Note**: Limited product forms due to manufacturing complexity and specialized applications --- ### **Technical Comparison** | Property | Dynavan™ T15 | M42 (8% Co) | M4 | Carbide Grades | |----------|---------------|-------------|----|---------------| | **Wear Resistance** | **Best in HSS** | Excellent | Excellent | **Superior** | | **Hot Hardness** | **Exceptional** | Best in HSS | Excellent | Superior | | **Toughness** | Low-Moderate | Moderate | Moderate | **Very Low** | | **Grindability** | **Extremely Difficult** | Difficult | Very Difficult | N/A | | **Peak Hardness (HRC)** | 66-68 | 67-69 | 66-68 | 88-93 (HRA) | | **Primary Advantage** | Max wear + hot hardness | Max hot hardness | Max wear | Max speed/hardness | | **Relative Cost** | Highest HSS | Very High | High | Varies | --- ### **Coating Compatibility** Dynavan™ T15 provides an exceptional substrate for advanced tool coatings: - **PVD Coatings**: TiAlN, AlCrN, AlTiN, DLC – excellent adhesion and synergy - **CVD Coatings**: TiC, TiCN, Al₂O₃ – good compatibility with proper pretreatment - **Special Advantage**: Ultra-high base hardness and vanadium carbide content enhance coating performance - **Pre-treatment**: Premium polishing and specialized cleaning essential - **Post-coating**: Low-temperature tempering may be beneficial after certain coating processes --- ### **Economic Considerations** 1. **Premium Material Cost**: Most expensive conventional HSS grade 2. **Exceptional Tool Life**: Often provides 200-400% longer tool life in appropriate applications 3. **Maximum Productivity**: Enables highest possible HSS cutting parameters 4. **Specialized Fabrication**: Higher grinding costs offset by extended tool life 5. **Strategic Application**: Justified only for most demanding applications where performance is critical --- ### **Storage & Handling Protocol** 1. **Storage Environment**: Climate-controlled with humidity <40% RH 2. **Corrosion Protection**: Premium rust preventive oil; VCI packaging mandatory 3. **Material Handling**: Use clean gloves; avoid contamination at all stages 4. **Identification**: Clearly marked with grade, heat number, and premium certification 5. **Inventory Management**: Controlled inventory with regular inspection --- ### **Technical Support & Services** Latrobe provides comprehensive premium support for Dynavan™ T15: - **Application Engineering**: Dedicated technical consultation - **Heat Treatment Development**: Custom protocols for specific applications - **Performance Testing**: Complete laboratory testing services - **Failure Analysis**: Premium metallurgical investigation - **Fabrication Guidance**: Specialized advice on machining and grinding - **Coating Integration**: Partnership with leading coating technology providers --- **Select Latrobe Dynavan™ ASTM T15 Super High Speed Steel** for applications requiring the absolute maximum in both wear resistance and hot hardness from conventional tool steel. This premium tungsten-vanadium-cobalt grade represents the ultimate HSS solution for the most extreme machining challenges, offering performance that approaches cemented carbide while maintaining the toughness advantages of high-speed steel. Dynavan™ T15 is the strategic choice when machining highly abrasive materials, hardened steels, or superalloys where maximum tool life and uncompromising performance are essential to productivity and profitability. For mission-critical applications where only the best will suffice, Dynavan™ delivers unparalleled HSS performance. -:- For detailed product information, please contact sales. -: Latrobe Dynavan™ ASTM T15 Super High Speed Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7157 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 Dynavan™ ASTM T15 Super High Speed Steel Properties -:- For detailed product information, please contact sales. -:

Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical Latrobe Dynavan™ ASTM T15 Super High Speed Steel Powder -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of Latrobe Dynavan™ ASTM T15 Super High Speed Steel Spherical Powder -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Dynavan™ ASTM T15 Super High Speed Steel Spherical Powder -:- For detailed product information, please contact sales. -:

Packing of Latrobe Dynavan™ ASTM T15 Super High Speed Steel Spherical Powder -:- 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 Spherical Powder 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 3628 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