Latrobe,Magnadie - RF Modified Premium H-13 Hot Work Die Steel Sheet,Plate

Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Sheet/Plate Product Information -:- For detailed product information, please contact sales. -: Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Sheet/Plate Synonyms -:- For detailed product information, please contact sales. -:

Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Product Information -:- For detailed product information, please contact sales. -: # **Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel** ## **Premium Remelted Quality for Superior Thermal Fatigue Resistance and Extended Die Life** Latrobe Magnadie-RF represents the pinnacle of premium modified H-13 hot work die steel technology, manufactured through specialized secondary refining processes to achieve exceptional microstructural purity and consistency. The "RF" designation indicates "Remelted Finish" or "Refined Finish," signifying steel that has undergone advanced vacuum or electroslag remelting to eliminate inclusions, optimize carbide distribution, and enhance thermal fatigue performance. This premium-grade material is engineered specifically for the most demanding die casting applications where maximum service life, dimensional stability, and resistance to heat checking are critical. --- ### **Key Features & Benefits** - **Exceptional Microstructural Purity**: Advanced remelting processes dramatically reduce non-metallic inclusions and improve material homogeneity - **Superior Thermal Fatigue Resistance**: Enhanced resistance to heat checking and thermal cracking, extending die life by 30-50% over conventional H-13 - **Optimized Carbide Distribution**: Fine, uniformly distributed carbides for improved mechanical properties and polishability - **Excellent Dimensional Stability**: Minimal distortion during heat treatment and in service for precision applications - **Enhanced Surface Characteristics**: Superior polishability and surface finish capabilities for high-quality castings - **Consistent Performance**: Exceptional batch-to-batch consistency in critical mechanical and thermal properties --- ### **Chemical Composition (Typical %, Premium Modified H-13 with Enhanced Controls)** | Element | Carbon (C) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) | Silicon (Si) | Manganese (Mn) | Special Additions | |---------|------------|---------------|-----------------|--------------|--------------|----------------|-------------------| | **Content** | 0.38 - 0.42 | 5.10 - 5.30 | 1.35 - 1.55 | 0.95 - 1.10 | 0.95 - 1.10 | 0.30 - 0.50 | Micro-alloys for grain refinement
Controlled low sulfur/phosphorus | *Note: Magnadie-RF maintains tighter compositional tolerances than standard H-13, with particular emphasis on vanadium control for optimal thermal fatigue resistance. Sulfur and phosphorus are typically maintained below 0.003% each through advanced refining processes. Micro-alloying additions promote fine grain structure and enhanced high-temperature properties.* --- ### **Physical & Mechanical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 7.81 g/cm³ | | **Thermal Conductivity** | 25-28 W/m·K at 20°C | | **Specific Heat Capacity** | 0.46 kJ/kg·K at 20°C | | **Coefficient of Thermal Expansion** | 10.8 × 10⁻⁶/K (20-400°C) | | **Hardness (Annealed)** | 195-215 HB | | **Hardness (Heat Treated)** | **44-48 HRC** (optimized range for die casting) | | **High-Temperature Yield Strength** | ≥ 1150 MPa at 540°C (1000°F) | | **Tensile Strength** | 1,750-2,050 MPa (at 46 HRC) | | **Yield Strength** | 1,550-1,850 MPa (at 46 HRC) | | **Modulus of Elasticity** | 205-215 GPa | | **Impact Toughness** | Very Good – maintained despite enhanced hardness | | **Thermal Fatigue Life** | 30-50% improvement over conventional H-13 in standardized testing | --- ### **Heat Treatment Guidelines** #### **Annealing** - **Temperature**: 845-870°C (1555-1600°F) - **Method**: Controlled slow furnace cool at ≤15°C (27°F) per hour to 600°C (1110°F) - **Resultant Hardness**: 195-215 HB - **Special Note**: Cleaner microstructure allows for more consistent annealing response #### **Stress Relieving** - **Temperature**: 650-675°C (1200-1245°F) - **Hold Time**: 1.5-2 hours per inch of thickness - **Cooling**: Slow controlled cool to 500°C (930°F) #### **Hardening (Precision Process)** 1. **Preheating**: **Double preheat recommended**
• First: 650-700°C (1200-1290°F)
• Second: 850-900°C (1560-1650°F) 2. **Austenitizing**: **1000-1020°C (1830-1870°F)** – precise control ±5°C recommended 3. **Soak Time**: 20-30 minutes per inch of thickness 4. **Quenching**: Air cooling standard; high-pressure gas for complex geometries 5. **Immediate Handling**: Cool to 50-60°C (120-140°F) before tempering #### **Tempering (Critical for Optimal Performance)** - **Temperature Range**: 560-620°C (1040-1150°F) - **Cycles**: **Triple tempering mandatory** for premium applications - **Duration**: 2-2.5 hours per cycle, slow cool between cycles - **Target Hardness**: 44-48 HRC typically achieved at 580-600°C (1075-1110°F) - **Special Advantage**: More complete and consistent secondary hardening response #### **Sub-Zero Treatment (Recommended)** - **Temperature**: -100 to -120°C (-148 to -184°F) - **Duration**: 3-4 hours - **Timing**: After quenching, before first temper - **Benefit**: Maximum dimensional stability and transformation of retained austenite --- ### **International Standards & Specifications** | Standard | Grade Designation | Notes | |----------|-------------------|-------| | **Proprietary** | Magnadie-RF | Latrobe Special Steel premium designation | | **Base Specification** | Premium ASTM H-13 | Enhanced version of A681 H13 | | **Remelting Process** | VAR or ESR | Vacuum Arc Remelt or ElectroSlag Remelt | | **Industry Standards** | NADCA #207-2003 (Premium) | North American Die Casting Association premium grade | | **Quality Level** | Aerospace/Medical Grade | Meets stringent inclusion rating standards | | **Customer Specifications** | Major OEM Premium Standards | Exceeds requirements of leading die casters | --- ### **Typical Applications** #### **Premium Die Casting Applications** - **Automotive Structural Components**: For safety-critical applications (A-pillars, B-pillars, crash structures) - **Large Thin-Wall Castings**: For automotive body panels and enclosures - **High-Volume Production Dies**: Where extended service life maximizes productivity - **Precision Casting Dies**: For components with tight dimensional requirements #### **Critical Aluminum Die Casting** - **Engine Blocks and Heads**: High-temperature, high-stress applications - **Transmission Cases and Housings**: Complex geometries with thermal management challenges - **Structural Automotive Components**: Requiring consistent mechanical properties - **Electrical Enclosures**: Thin-wall applications with aesthetic surface requirements #### **Magnesium Die Casting** - **High-Performance Automotive**: Structural magnesium components - **Electronics Housings**: For laptops, mobile devices, and consumer electronics - **Aerospace Components**: Lightweight structural elements #### **Specialized Hot Work Applications** - **Extrusion Dies for Premium Applications**: Particularly for aerospace aluminum alloys - **Forging Die Inserts**: For critical aerospace and automotive components - **Plastic Injection Molds**: For high-temperature engineering plastics (PEEK, PPS, PEI) --- ### **Machining & Fabrication Notes** #### **Machinability (Annealed Condition)** - **Rating**: 55-65% of B1112 free-machining steel - **Recommended Tools**: **Premium carbide tooling recommended** for optimal results - **Cutting Speeds**: 20-30 m/min (65-100 SFM) for turning operations - **Feed Rates**: Moderate feeds with good chip control - **Coolant**: High-performance synthetic coolant essential - **Special Advantage**: Consistent cutting forces and predictable tool life #### **Grindability** - **Relative Rating**: 70-75 (vs. 100 for annealed O1 tool steel) - **Abrasive Recommendations**: CBN or premium aluminum oxide wheels - **Wheel Maintenance**: Regular dressing with optimized parameters - **Coolant**: High-pressure flood coolant for thermal management - **Surface Finish**: Exceptional surface quality achievable (Ra < 0.2 μm) #### **EDM Machining** - **Excellent EDM characteristics** with consistent material removal - **Reduced white layer** compared to conventional H-13 - **Superior surface finish** with optimized parameters - **Minimal micro-cracking** due to cleaner microstructure #### **Polishing and Texturing** - **Premium Polishability**: Can achieve Ra < 0.025 μm for optical-quality surfaces - **Texturing Response**: Excellent for chemical, laser, and photochemical texturing - **Maintenance**: Superior resistance to polishing-related defects and orange peel - **Surface Integrity**: Enhanced resistance to erosion and soldering --- ### **Quality Assurance & Enhanced Metallurgical Standards** #### **Premium Microstructural Requirements** - **Inclusion Rating**: ASTM E45 Method D, ≤0.5 total (ultra-clean) - **Carbide Distribution**: Extremely uniform, maximum carbide size ≤8 μm - **Grain Size**: ASTM 8 or finer (typically ASTM 9-10) - **Decarburization**: ≤0.10 mm per side on finished products - **Microcleanliness**: Jernkontoret (JK) inclusion rating ≤1.0 for oxides, ≤0.5 for sulfides - **Segregation**: Minimal chemical and structural segregation #### **Advanced Testing & Certification** - **Complete Chemical Analysis**: With trace element quantification - **Microstructural Analysis**: Including carbide size, distribution, and morphology - **Mechanical Testing**: At room and elevated temperatures - **Non-Destructive Testing**: 100% ultrasonic testing to aerospace standards - **Thermal Fatigue Testing**: Standardized testing for qualification - **Full Traceability**: From melt to finished product with complete documentation --- ### **Available Product Forms** | Form | Standard Sizes | Condition | Surface Finish | Quality Features | |------|---------------|-----------|----------------|------------------| | **Remelted Billets** | 150-400mm diameter | Annealed | As-remelted, Machined | 100% UT tested | | **Precision Ground Bars** | 20-300mm diameter | Annealed | Super-finished | Certified straightness | | **Premium Plate** | 15-200mm thickness | Annealed | Ground & Stress Relieved | Enhanced flatness | | **Custom Forgings** | Customer specifications | Annealed | As-forged, Machined | Optimized grain flow | | **Near-Net Shapes** | Complex geometries | Annealed | Machined surfaces | Minimal stock allowance | --- ### **Technical Comparison: Magnadie-RF vs. Conventional H-13** | Property | Magnadie-RF | Conventional H-13 | Improvement | |----------|-------------|-------------------|-------------| | **Thermal Fatigue Life** | **Superior** | Good | 30-50% | | **Inclusion Content** | **Ultra-Clean** | Standard | 70-80% reduction | | **Polishability** | **Premium** | Good | Dramatic improvement | | **Dimensional Stability** | **Exceptional** | Good | Significant enhancement | | **Consistency** | **Premium** | Variable | Major advantage | | **High-Temperature Strength** | Improved | Good | 10-15% | | **Service Life** | **Extended** | Standard | 30-50% typical | | **Cost Premium** | 50-100% | Baseline | - | --- ### **Surface Treatment Compatibility** Magnadie-RF provides optimal performance with advanced surface treatments: - **Nitriding**: Superior nitride layer uniformity and adhesion (plasma nitriding recommended) - **PVD Coatings**: Exceptional coating adhesion and performance - **CVD Coatings**: Suitable with proper process controls - **Proprietary Treatments**: Various advanced surface engineering options available --- ### **Economic Considerations** 1. **Material Cost**: 50-100% premium over conventional H-13 2. **Die Life**: Typically 30-50% longer in equivalent applications 3. **Maintenance Costs**: Significant reduction in polishing and repair requirements 4. **Downtime Reduction**: Extended production runs between maintenance 5. **Quality Improvements**: Enhanced casting surface finish and dimensional consistency 6. **Total Cost of Ownership**: Often substantially lower despite higher initial investment 7. **ROI**: Typically achieved within first 6-12 months of production --- ### **Technical Support & Premium Services** Latrobe provides comprehensive premium support for Magnadie-RF: - **Application Engineering**: Dedicated technical consultation for critical applications - **Heat Treatment Development**: Custom protocols validated in laboratory conditions - **Performance Testing**: Complete thermal fatigue and mechanical testing services - **Failure Analysis**: Premium metallurgical investigation with advanced techniques - **Training Programs**: Specialized workshops on premium die materials and processing - **Field Support**: Priority on-site technical assistance for critical applications --- **Select Latrobe Magnadie-RF Modified Premium H-13 Hot Work Die Steel** for applications where only the highest performance and reliability are acceptable. This premium remelted-grade material delivers exceptional thermal fatigue resistance, extended service life, and superior dimensional stability that translate directly to maximum productivity, reduced downtime, and lowest total operating costs. For safety-critical automotive components, high-volume production dies, precision casting applications, and situations where die performance directly impacts product quality and manufacturing economics, Magnadie-RF represents the ultimate investment in premium tooling materials. When failure is not an option and maximum performance is required, Magnadie-RF provides the technological edge that discerning manufacturers demand in today's competitive global marketplace. -:- For detailed product information, please contact sales. -: Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7173 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 Magnadie - RF Modified Premium H-13 Hot Work Die Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Sheet,Plate -:- For detailed product information, please contact sales. -: Chemical Identifiers Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die Steel Sheet,Plate -:- For detailed product information, please contact sales. -:

Packing of Latrobe Magnadie - RF Modified Premium H-13 Hot Work Die 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 3644 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