Bohler-Uddeholm,UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Sheet,Plate

Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Sheet/Plate Product Information -:- For detailed product information, please contact sales. -: Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Sheet/Plate Synonyms -:- For detailed product information, please contact sales. -:

Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Datasheet: Böhler-Uddeholm UDDEHOLM ORVAR® SUPREME Premium Hot Work Tool Steel** ## **Product Overview** **UDDEHOLM ORVAR® SUPREME** represents the **ultimate evolution in H13-type hot work tool steel technology**, setting the benchmark for **exceptional thermal fatigue resistance, toughness, and dimensional stability** in demanding die casting applications. As the highest grade in the ORVAR family, SUPREME incorporates **advanced metallurgical refinements and proprietary manufacturing processes** to deliver unparalleled performance and consistency in the most challenging aluminum, magnesium, and zinc die casting environments. ## **Key Characteristics & Advantages** - **Unmatched Thermal Fatigue Resistance:** Industry-leading resistance to heat checking and thermal cracking - **Exceptional Toughness & Ductility:** Superior impact resistance at both room and elevated temperatures - **Optimized Microcleanliness:** Ultra-low inclusion content for maximum fatigue life - **Superior Machinability & Polishability:** Best-in-class processing characteristics - **Enhanced Thermal Conductivity:** Improved heat dissipation for reduced thermal stress - **Exceptional Consistency:** Unprecedented batch-to-batch uniformity - **Extended Die Life:** Documented performance in demanding applications - **Reduced Soldering Tendency:** Optimized chemistry minimizes aluminum adhesion ## **Standard Specifications & International Designations** | **Standard** | **Designation** | **Notes** | |--------------|-----------------|-----------| | **Böhler-Uddeholm** | **UDDEHOLM ORVAR® SUPREME** | Ultimate premium grade | | **AISI/ASTM** | **H13 (Ultimate Premium)** | Superior to all standard H13 | | **DIN/EN** | **1.2344 ESR (Premium+)** | Electroslag remelted premium | | **JIS** | **SKD61 (Supreme)** | Highest quality classification | | **ISO** | **HTF 4 (Premium+)** | Hot work tool steel classification | | **Manufacturing Process** | **ESR + Advanced Processing** | Electroslag remelted with special controls | | **Quality Classification** | **Uddeholm Supreme Quality** | Highest internal standard | ## **Chemical Composition (Typical, Weight %)** | Element | Content (%) | Primary Function | Metallurgical Benefit | |---------|-------------|------------------|----------------------| | **Carbon (C)** | 0.37-0.42 | Matrix strength & carbide balance | Optimal hardness-toughness balance | | **Chromium (Cr)** | 4.90-5.20 | Heat resistance & hardenability | Enhanced oxidation resistance | | **Molybdenum (Mo)** | 1.30-1.50 | Hot strength & temper resistance | Superior high-temperature stability | | **Vanadium (V)** | 0.90-1.05 | Carbide formation & grain refinement | Optimized for thermal fatigue | | **Silicon (Si)** | 0.90-1.10 | Deoxidizer & strength | Clean microstructure with good strength | | **Manganese (Mn)** | 0.35-0.50 | Hardenability | Consistent hardening response | | **Sulfur (S)** | **≤0.001** | **Ultra-low control** | **Maximum toughness & fatigue life** | | **Phosphorus (P)** | **≤0.010** | **Ultra-low control** | **Exceptional ductility** | | **Trace Elements** | **Precisely controlled** | **Microcleanliness** | **Superior performance consistency** | | **Iron (Fe)** | **Balance** | Matrix | **Ultra-clean structure** | ***Special Note:** ORVAR SUPREME maintains the optimal H13 chemistry but with **exacting control of all elements and ultra-low impurity levels**. The ESR (Electroslag Remelting) process ensures exceptional microcleanliness, while proprietary thermal processing optimizes the microstructure for maximum thermal fatigue resistance.* ## **Microstructural Characteristics** | Feature | Specification | Benefit | |---------|---------------|---------| | **Inclusion Content** | **ASTM E45 ≤ 0.2** | **Ultimate fatigue resistance** | | **Inclusion Morphology** | **Small, globular, non-deformable** | Minimal stress concentration | | **Carbide Distribution** | **Extremely uniform, fine dispersion** | Consistent properties in all directions | | **Carbide Size** | **0.5-2.0 μm** | Optimal for toughness & wear balance | | **Grain Structure** | **ASTM 9-11 (very fine)** | Enhanced mechanical properties | | **Segregation** | **Virtually eliminated** | Perfect isotropy | | **Microporosity** | **None detectable** | Maximum fatigue life | ## **Manufacturing Excellence** 1. **Ultra-Clean Melting:** Electric arc furnace with advanced ladle metallurgy 2. **Electroslag Remelting (ESR):** Mandatory for SUPREME grade 3. **Precision Forging:** Computer-controlled for optimal grain flow 4. **Proprietary Annealing:** Special cycles for perfect microstructure 5. **Comprehensive Testing:** 100% ultrasonic, spectral, and microcleanliness testing ## **Typical Heat Treatment** ### **1. Annealing** - **Temperature:** **850-880°C (1560-1615°F)** - **Cooling:** Controlled slow cool (20°C/hour) to 600°C, then air cool - **Annealed Hardness:** **185-205 HB** - **Structure:** Perfectly spheroidized carbides in fine ferritic matrix ### **2. Stress Relieving** - **Temperature:** **600-650°C (1110-1200°F)** - **Duration:** 2 hours per 25 mm minimum - **Critical For:** Complex geometries and pre-hardened machining ### **3. Hardening** 1. **Preheating:** **650°C (1200°F) & 850°C (1560°F)** 2. **Austenitizing:** **1000-1030°C (1830-1885°F)** - **Optimum:** **1015-1025°C (1860-1875°F)** - **Maximum Toughness:** **1000-1010°C (1830-1850°F)** - **Maximum Hot Strength:** **1020-1030°C (1870-1885°F)** 3. **Soaking Time:** **15-30 minutes** (shorter due to clean structure) 4. **Quenching:** **Forced air** (2-4 bar) or **high-pressure gas** ### **4. Tempering** - **Immediate Tempering:** Upon reaching 40-60°C (105-140°F) - **Minimum Cycles:** **Triple tempering recommended** - **Temperature Range:** **560-640°C (1040-1185°F)** - **Optimal for Die Casting:** **590-620°C (1095-1150°F)** - **Hardness Profile:** - 560°C (1040°F): 50-52 HRC - 580°C (1075°F): 48-50 HRC - 600°C (1110°F): 46-48 HRC - 620°C (1150°F): 44-46 HRC - 640°C (1185°F): 42-44 HRC ### **5. Surface Enhancement** - **Nitriding:** **Highly recommended** – plasma or gas nitriding - **Case Depth:** 0.10-0.20 mm optimal - **Surface Hardness:** 1000-1150 HV - **Benefits:** Dramatically reduced soldering, extended service life ## **Physical Properties** | Property | Value | Unit | Conditions | Significance | |----------|-------|------|------------|--------------| | **Density** | 7.80 | g/cm³ | 20°C | Standard for H13-type | | **Modulus of Elasticity** | 210 | GPa | 20°C | Excellent stiffness | | **Thermal Expansion** | 11.5 | ×10⁻⁶/K | 20-100°C | Predictable dimensional changes | | **Thermal Conductivity** | **26.5** | W/(m·K) | 20°C | **Superior heat transfer** | | **Specific Heat Capacity** | 460 | J/(kg·K) | 20°C | Good thermal buffer | ## **Mechanical Properties** ### **Standard Condition (1020°C Austenitize / 600°C×3 Temper)** | Property | Value Range | Unit | Test Method | Superiority | |----------|-------------|------|-------------|-------------| | **Hardness** | **46-48** | HRC | ISO 6508 | Optimal balance | | **Tensile Strength** | 1500-1600 | MPa | ISO 6892 | High strength | | **Yield Strength (0.2%)** | 1350-1450 | MPa | ISO 6892 | Excellent load capacity | | **Elongation** | **14-18** | % | ISO 6892 | **Exceptional ductility** | | **Reduction of Area** | **50-60** | % | ISO 6892 | **Superior toughness** | | **Impact Toughness** | **60-80** | J | ISO 148 | **Industry-leading** | | **Fracture Toughness** | **90-110** | MPa√m | ASTM E399 | **Best-in-class** | ### **High Temperature Performance** | Temperature | Hardness Retention | Impact Toughness | Significance | |-------------|-------------------|------------------|--------------| | **200°C (390°F)** | 95-97% | 50-70 J | Preheating range | | **400°C (750°F)** | 85-90% | 40-60 J | Typical operating | | **600°C (1110°F)** | 65-70% | 30-50 J | Extreme conditions | ### **Fatigue Performance (Comparative)** | Test Type | ORVAR SUPREME | Standard H13 | ORVAR SUPERIOR | |-----------|----------------|--------------|----------------| | **Thermal Fatigue Cycles to Failure** | **100%** | 40-50% | 80-85% | | **Mechanical Fatigue Limit** | **100%** | 70-75% | 90-95% | | **Crack Propagation Rate** | **Slowest** | Fastest | Moderate | ## **Primary Applications** ### **A. Premium Die Casting Applications** #### **Critical Aluminum Castings:** - **Automotive Structural:** Engine blocks, transmission cases, structural components - **Aerospace Components:** High-integrity castings - **Thin-Wall Electronics:** Housings, heat sinks, enclosures - **High-Pressure Applications:** Complex geometries with thin features #### **Demanding Magnesium Casting:** - **Automotive Safety:** Steering wheels, seat frames - **Electronics:** Laptop cases, mobile device frames - **Aerospace:** Lightweight structural components #### **High-Performance Zinc Casting:** - **Precision Components:** With tight tolerances - **High-Volume Production:** Fast-cycling applications ### **B. Specialized Hot Work Applications** - **Critical Extrusion Dies:** For high-value aluminum profiles - **Premium Forging Dies:** For aerospace and automotive - **High-Temperature Plastic Molds:** For engineering polymers - **Glass Molding Tools:** For precision optical components ## **Processing Guidelines** ### **1. Machining Operations** | Operation | Tool Recommendation | Parameters | Notes | |-----------|---------------------|------------|-------| | **Turning** | **Premium carbide** | Vc: 100-160 m/min
f: 0.20-0.40 mm/rev
ap: 3-6 mm | **Excellent chip control** | | **Milling** | **Coated carbide** | Vc: 120-180 m/min
fz: 0.15-0.30 mm
ae: 30-60% | **High productivity possible** | | **Drilling** | **Carbide drills** | Vc: 25-40 m/min
f: 0.15-0.25 mm/rev | **Clean hole quality** | | **Tapping** | **Premium HSS-E or carbide** | Vc: 8-15 m/min | **Excellent thread formation** | ***Machinability Rating:** **85-90%** (vs. 1% C-steel) – **Best in class for hot work steels*** ### **2. Grinding & Polishing** - **Grindability:** **Exceptional** – responds beautifully to grinding - **Surface Finish:** **Ra < 0.05 μm** achievable - **Polishing:** **Mirror finishes** with standard procedures - **Wheel Selection:** Standard aluminum oxide or CBN ### **3. EDM Operations** - **Excellent EDM Characteristics:** Very stable machining - **Surface Quality:** Superior as-cut surfaces - **White Layer:** Minimal and consistent - **Post-EDM:** Light stress relief recommended ### **4. Welding & Repair** - **Weldability:** **Very Good** (best in ORVAR family) - **Filler Material:** **UDDEHOLM UNIMAR 96 SUPREME** - **Preheating:** 300-350°C (570-660°F) - **Success Rate:** High for qualified procedures ## **Quality Assurance** ### **Certification Package** 1. **3.2 Certificate:** Full traceability and test results 2. **Microcleanliness Report:** With digital inclusion mapping 3. **Ultrasonic Certificate:** 100% tested to stringent standards 4. **Heat Treatment Records:** When supplied treated 5. **Dimensional Reports:** As required ### **Available Forms** | Form | Size Range | Special Features | |------|------------|------------------| | **Blocks** | Up to 1000×1000×500 mm | Stress-relieved, precision squared | | **Round Bars** | Ø20-600 mm | Peeled, ground, or black | | **Custom Forgings** | To specification | With optimal grain flow | | **Pre-machined** | Customer design | Ready for final processing | ## **Performance Comparison** ### **ORVAR Family Hierarchy** | Grade | Quality Level | Relative Performance | Primary Application | |-------|--------------|---------------------|---------------------| | **ORVAR STANDARD** | Commercial | 70-80% | General purpose | | **ORVAR SUPERIOR** | Premium | 90-95% | Demanding applications | | **ORVAR SUPREME** | **Ultimate** | **100%** | **Critical applications** | ### **vs. Competitive Premium Grades** | Property | ORVAR SUPREME | Best Competitor | Advantage | |----------|----------------|-----------------|-----------| | **Thermal Fatigue Life** | **100%** | 85-90% | **10-15% better** | | **Impact Toughness** | **100%** | 80-85% | **15-20% better** | | **Polishability** | **100%** | 90-95% | **5-10% better** | | **Consistency** | **100%** | 85-90% | **10-15% better** | ## **Economic Justification** ### **Value Proposition:** - **Extended Die Life:** 50-100% longer than standard H13 - **Reduced Maintenance:** Less frequent polishing and repair - **Improved Part Quality:** Better surface finish, less soldering - **Higher Productivity:** Potential for faster cycles - **Reduced Risk:** Lower failure probability in critical applications ### **Cost Analysis:** | Cost Factor | ORVAR SUPREME | Standard H13 | Justification | |-------------|----------------|--------------|---------------| | **Material Cost** | 150-200% | 100% | Premium quality | | **Machining Cost** | 90-95% | 100% | Better machinability | | **Die Life** | 150-200% | 100% | Extended service | | **Total Cost per Part** | **80-90%** | **100%** | **Overall savings** | ## **Technical Support** ### **Uddeholm Expertise:** - **Application Engineering:** Comprehensive die design support - **Heat Treatment Guidance:** Optimized for SUPREME grade - **Failure Analysis:** World-class laboratory facilities - **Training:** Specialized workshops for premium materials - **Global Support:** Technical service worldwide ### **Documentation:** - **Technical Datasheets:** Detailed property data - **Processing Guides:** Step-by-step instructions - **Application Reports:** Case studies and best practices - **Safety Information:** Complete handling guidelines --- ## **Strategic Recommendations** ### **Ideal Applications for ORVAR SUPREME:** 1. **Critical automotive components** where failure is unacceptable 2. **High-volume production** with demanding cycle times 3. **Complex geometries** with thin sections and high thermal stress 4. **Applications requiring exceptional surface finish** 5. **Tooling for premium part manufacturers** ### **Implementation Strategy:** 1. **Start with critical components** in high-value tools 2. **Document performance** versus previous materials 3. **Optimize heat treatment** for specific application 4. **Implement proper maintenance** procedures 5. **Leverage Uddeholm support** for best results --- **Disclaimer:** UDDEHOLM ORVAR SUPREME represents the ultimate in hot work tool steel technology and commands a premium price. Its selection should be based on thorough economic and technical analysis. Consult with Böhler-Uddeholm technical specialists for application-specific recommendations. Performance data represents typical values under controlled conditions; actual results may vary based on specific processing and application parameters. Always refer to the latest technical documentation and follow recommended safety procedures. -:- For detailed product information, please contact sales. -: Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6860 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. -: Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Sheet,Plate -:- For detailed product information, please contact sales. -: Chemical Identifiers Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool Steel Sheet,Plate -:- For detailed product information, please contact sales. -:

Packing of Bohler-Uddeholm UDDEHOLM ORVAR® SUPREME (Premium AISI H13) Hot Work Tool 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 3331 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