Bohler-Uddeholm TOUGHTEC SF

Bohler-Uddeholm TOUGHTEC SF Product Information -:- For detailed product information, please contact sales. -: Bohler-Uddeholm TOUGHTEC SF Synonyms -:- For detailed product information, please contact sales. -:

Bohler-Uddeholm TOUGHTEC SF Product Information -:- For detailed product information, please contact sales. -: # **Böhler-Uddeholm TOUGHTEC® SF** ## **Innovative High-Toughness & High-Strength Steel Plate for Demanding Applications** --- ### **1. Product Overview** **Böhler-Uddeholm TOUGHTEC® SF** is a groundbreaking **quenched and tempered structural steel plate** engineered through advanced thermomechanical processing. Representing a significant advancement in steel plate technology, TOUGHTEC® SF combines exceptional toughness, high strength, and excellent fatigue resistance in a single material solution. The "SF" designation indicates specialized properties optimized for **structural, wear, and high-stress applications** where conventional steel plates face limitations in toughness-strength balance. This product bridges the gap between standard structural steels and specialized tool steels, offering unique value across multiple demanding industries. --- ### **2. Key Value Propositions** - **Exceptional Toughness-Strength Balance**: Achieves high yield strength (up to 1300 MPa) while maintaining superior impact toughness - **Excellent Fatigue Resistance**: Specifically engineered for cyclic loading applications, significantly outperforming conventional structural steels - **High Wear Resistance**: Enhanced surface durability without compromising core toughness - **Good Weldability**: Designed for easy welding with minimal pre-heat requirements considering its strength level - **Superior Through-Thickness Properties**: Consistent mechanical properties throughout the plate thickness - **Excellent Machinability**: Despite high hardness, maintains good machining characteristics with appropriate tools - **Reduced Weight Potential**: Higher strength allows for thinner sections while maintaining performance --- ### **3. International Standard Designations** | Standard System | Designation | Classification | |----------------|-------------|----------------| | **Böhler-Uddeholm** | TOUGHTEC® SF | Proprietary High-Performance Plate | | **EN 10025-6** | S960QL / S1100QL | Quenched & Tempered Steel Equivalent | | **ASTM/AISI** | Proprietary Grade | High-Strength Low-Alloy (HSLA) Enhanced | | **DIN** | Special Analysis Steel | Not standard classified | | **ISO 4950** | High Yield Strength Steel | Grade 1100 equivalent | | **Common References** | Ultra-High Strength Steel Plate | Wear-Resistant Structural Steel | --- ### **4. Chemical Composition (Typical Weight %)** | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Chromium (Cr) | Molybdenum (Mo) | Nickel (Ni) | Boron (B) | Micro-alloys | |---------|------------|--------------|----------------|---------------|----------------|-------------|-----------|--------------| | **Content** | 0.15-0.25 | 0.20-0.50 | 0.80-1.50 | 0.50-1.20 | 0.20-0.60 | 0.50-2.00 | 0.001-0.005 | V, Ti, Nb | **Metallurgical Innovations:** - **Optimized Carbon Content**: Balances strength and weldability - **Boron Addition**: Enhances hardenability without compromising toughness - **Nickel Content**: Improves low-temperature toughness and fracture resistance - **Micro-alloying**: Vanadium, titanium, and niobium for grain refinement and precipitation strengthening - **Clean Steel Practice**: Low sulfur and phosphorus for improved through-thickness properties --- ### **5. Physical Properties** | Property | Value | Test Conditions | Significance | |----------|-------|----------------|--------------| | **Density** | 7.85 g/cm³ | 20°C | Standard for weight calculations | | **Thermal Conductivity** | 42.0 W/m·K | 20°C | Good for welding and heat dissipation | | **Coefficient of Thermal Expansion** | 12.0 × 10⁻⁶/K | 20-200°C | Important for fabrication and service | | **Specific Heat Capacity** | 450 J/kg·K | 20°C | Thermal management in applications | | **Elastic Modulus** | 210 GPa | 20°C | High stiffness for structural applications | | **Poisson's Ratio** | 0.29 | 20°C | Important for stress calculations | --- ### **6. Mechanical Properties** #### **Standard Grades Available** | Grade Designation | Yield Strength (Rp0.2) | Tensile Strength | Elongation A5 | Impact Toughness (-40°C) | |-------------------|------------------------|-----------------|---------------|--------------------------| | **TOUGHTEC 700 SF** | ≥ 700 MPa | 750-950 MPa | ≥ 14% | ≥ 40 J | | **TOUGHTEC 900 SF** | ≥ 900 MPa | 950-1100 MPa | ≥ 12% | ≥ 40 J | | **TOUGHTEC 1100 SF** | ≥ 1100 MPa | 1150-1300 MPa | ≥ 10% | ≥ 30 J | | **TOUGHTEC 1300 SF** | ≥ 1300 MPa | 1350-1500 MPa | ≥ 8% | ≥ 25 J | #### **Enhanced Properties** - **Fatigue Strength**: Typically 50-60% of tensile strength at 2×10⁶ cycles - **Crack Propagation Resistance**: Excellent resistance to fatigue crack growth - **Fracture Toughness**: High KIC values even at low temperatures - **Through-Thickness Properties**: Z-direction testing available for critical applications --- ### **7. Processing & Fabrication Guidelines** #### **Thermal Processing State** - **Supplied Condition**: Quenched and Tempered (Q&T) - **Tempering Temperature**: Typically 550-650°C - **Microstructure**: Fine-grained tempered martensite/bainite - **Surface Condition**: Mill scale, shot blasted, or pre-machined available #### **Cutting & Machining** - **Flame Cutting**: Possible with proper pre-heating (100-150°C) - **Plasma Cutting**: Recommended method with minimal HAZ - **Waterjet Cutting**: Ideal for complex shapes and minimal thermal distortion - **Machining Parameters**: - Turning: Coated carbide tools, moderate speeds and feeds - Milling: Carbide end mills, climb milling recommended - Drilling: HSS-Co or carbide drills with adequate cooling #### **Welding Procedures** - **Pre-heating**: Required based on thickness and grade: - TOUGHTEC 700: 50-100°C - TOUGHTEC 900: 100-150°C - TOUGHTEC 1100: 150-200°C - TOUGHTEC 1300: 200-250°C - **Recommended Electrodes**: Low-hydrogen basic coated electrodes (E11018 type) - **Welding Methods**: SMAW, GMAW (MAG), GTAW (TIG), SAW - **Post-Weld Heat Treatment**: Optional stress relief at 550-600°C #### **Forming & Bending** - **Minimum Bend Radius**: 2-3× plate thickness depending on grade - **Forming Temperature**: Room temperature for most applications - **Springback Considerations**: Higher than conventional steels due to high strength --- ### **8. Product Applications** **TOUGHTEC® SF** is engineered for demanding applications across multiple industries where conventional steels fail to provide adequate toughness-strength balance: #### **Primary Applications** **A. Mobile Equipment & Heavy Machinery** - **Excavator and Loader Components**: - Boom and arm sections - Bucket lips and cutting edges - Linkages and pivot points - Undercarriage components - **Mining Equipment**: - Shovel dippers and handles - Truck body liners and wear plates - Crusher components and liners - Conveyor system structural members - **Material Handling**: - Crane boom sections - Forklift masts and forks - Heavy-duty trailer components **B. Transportation & Automotive** - **Commercial Vehicles**: - Chassis frames and crossmembers - Suspension components - Fifth wheels and coupling devices - Safety-critical structural parts - **Special Vehicles**: - Armored vehicle components - Fire and rescue equipment - Military vehicle structures **C. Construction & Infrastructure** - **Heavy Construction**: - Formwork and shoring systems - Pile driving equipment - Tunnel boring machine components - Heavy foundation equipment - **Bridge Construction**: - Launching noses and temporary structures - Heavy lifting equipment components - Specialized construction machinery **D. Energy Sector** - **Wind Energy**: - Tower internal components - Nacelle structural parts - Heavy lifting equipment for installation - **Hydropower**: - Turbine gate components - Heavy structural supports - Maintenance equipment #### **Secondary Applications** - **Marine Equipment**: Winches, cranes, and deck machinery - **Agricultural Machinery**: Heavy-duty implements and structural components - **Railway Equipment**: Specialized maintenance machinery - **Defense Applications**: Structural components requiring blast resistance --- ### **9. Surface Treatment & Enhancement Options** #### **Wear Protection Solutions** 1. **Hardfacing & Wear Plates**: - Can be hardfaced with appropriate procedures - Compatible with wear plate attachment (bolting, welding) - Surface hardening possible for specific applications 2. **Protective Coatings**: - **Paint Systems**: Excellent paint adhesion with proper surface preparation - **Galvanizing**: Hot-dip galvanizing possible with proper process control - **Metal Spraying**: For additional corrosion or wear protection 3. **Surface Hardening** (Limited Applications): - Induction hardening possible for specific components - Nitriding for enhanced surface wear resistance #### **Corrosion Protection** - **Atmospheric Corrosion Resistance**: Similar to conventional structural steels - **Recommended Protection**: Paint systems or galvanizing based on environment - **Special Coatings**: Epoxy, polyurethane, or specialized industrial coatings --- ### **10. Quality Assurance & Testing** #### **Manufacturing Standards** - **Thermomechanical Rolling**: Controlled process for optimal grain structure - **Accelerated Cooling**: For fine microstructure development - **Heat Treatment**: Computer-controlled quenching and tempering - **Non-Destructive Testing**: UT, MT, PT available as required #### **Standard Testing** - **Mechanical Testing**: Tensile, impact, bend tests per batch - **Through-Thickness Testing**: Z-direction properties available - **Fracture Toughness Testing**: CTOD or KIC testing on request - **Fatigue Testing**: Wöhler curves available for design purposes #### **Certification & Documentation** - **Mill Certificates**: EN 10204 3.1 or 3.2 - **Traceability**: Complete from steelmaking to final product - **Special Certifications**: Available for nuclear, defense, or critical applications - **Third-Party Inspection**: Can be arranged as required --- ### **11. Comparative Performance Analysis** #### **TOUGHTEC® SF vs. Conventional High-Strength Steels** | Property | TOUGHTEC® SF (1100 Grade) | S690QL | Hardox 450 | Analysis | |----------|---------------------------|--------|------------|----------| | **Yield Strength** | 1100 MPa | 690 MPa | 1100 MPa | Superior to S690, comparable to Hardox | | **Impact Toughness (-40°C)** | ≥ 40 J | ≥ 40 J | Typically 20-30 J | **Superior to Hardox** | | **Fatigue Strength** | ~650 MPa | ~400 MPa | ~550 MPa | **Significantly better** | | **Weldability** | Good (with pre-heat) | Very Good | Limited | Requires more care than S690 | | **Cost** | Premium | Standard | Medium-High | Higher but justified by performance | #### **Advantages Over Alternative Materials** - **vs. Conventional Tool Steels**: Better toughness, easier fabrication, lower cost - **vs. Standard Structural Steels**: Higher strength allows weight reduction - **vs. Wear Steels**: Better toughness and fatigue resistance - **vs. Aluminum Alloys**: Higher strength, better wear resistance, lower cost --- ### **12. Design & Engineering Guidelines** #### **Design Principles** 1. **Stress Concentration**: - Avoid sharp corners and sudden section changes - Use generous radii in high-stress areas - Consider notch effects in fatigue-loaded components 2. **Joint Design**: - Prefer bolted connections where possible - For welded joints, use full penetration where feasible - Avoid welds in high-stress concentration areas 3. **Fatigue Considerations**: - Design for infinite life where possible - Consider surface finish effects on fatigue strength - Account for residual stresses from fabrication #### **Fabrication Considerations** - **Cutting**: Prefer thermal cutting methods that minimize HAZ - **Forming**: Account for higher springback than mild steel - **Machining**: Use rigid setups and appropriate tooling - **Quality Control**: Implement thorough inspection of critical areas --- ### **13. Economic Benefits & Value Proposition** #### **Direct Cost Savings** - **Weight Reduction**: Up to 50% weight saving possible compared to mild steel - **Extended Service Life**: Reduced maintenance and replacement costs - **Lower Transportation Costs**: Lighter components reduce shipping costs - **Reduced Fabrication Costs**: Fewer welds and simpler structures #### **Performance Benefits** - **Increased Safety**: Better fracture resistance in critical applications - **Higher Productivity**: Equipment can work at higher capacities - **Reduced Downtime**: Longer intervals between maintenance - **Improved Reliability**: Consistent performance in demanding conditions #### **Total Cost of Ownership** - **Initial Investment**: Higher material cost than conventional steels - **Lifecycle Cost**: Typically 20-40% lower over equipment life - **Return on Investment**: 6-18 months in most heavy equipment applications - **Value Justification**: Particularly strong for safety-critical or high-wear applications --- ### **14. Case Studies & Application Examples** #### **Case Study 1: Mining Excavator Bucket** - **Application**: Front lip and corner castings replacement - **Previous Material**: Conventional wear steel plate - **TOUGHTEC® SF Solution**: 1100 grade for critical areas - **Results**: - Service life increased from 6 to 14 months - Reduced cracking in high-stress areas - Lower maintenance downtime - ROI achieved in 4 months #### **Case Study 2: Mobile Crane Boom** - **Application**: Boom tip section reinforcement - **Challenge**: Weight reduction while maintaining strength - **Solution**: TOUGHTEC 900 SF replacing S690 - **Benefits**: - 15% weight reduction in critical section - Improved lifting capacity at maximum reach - Better fatigue performance - Reduced fuel consumption #### **Case Study 3: Heavy Transport Trailer** - **Application**: Main beam and crossmembers - **Requirements**: High strength, good weldability, fatigue resistance - **Material Selection**: TOUGHTEC 700 SF - **Outcomes**: - 30% weight reduction compared to mild steel design - Increased payload capacity - Reduced manufacturing costs through simpler design - Excellent service history with minimal maintenance --- ### **15. Technical Support & Engineering Services** Böhler-Uddeholm provides comprehensive support for TOUGHTEC® SF users: #### **Technical Consultation** - Material selection assistance - Design optimization for high-strength applications - Fabrication procedure development - Failure analysis and troubleshooting #### **Engineering Resources** - Design guidelines and calculation tools - Welding procedure specifications (WPS) - Fatigue life prediction tools - Application-specific technical data #### **Training & Education** - Fabricator training programs - Welding certification support - Application engineering workshops - Online technical resources #### **Testing & Validation Services** - Prototype testing and validation - Fatigue testing of components - Fracture mechanics analysis - Full-scale component testing --- ### **16. Environmental & Sustainability Benefits** #### **Environmental Advantages** - **Weight Reduction**: Lower fuel consumption in mobile equipment - **Extended Life**: Reduced material consumption over equipment lifetime - **Recyclability**: 100% recyclable at end of life - **Clean Production**: Advanced steelmaking with lower environmental impact #### **Sustainability Certifications** - Environmental Product Declarations (EPD) available - Life Cycle Assessment (LCA) data provided - Sustainable manufacturing practices - Compliance with international environmental standards --- ### **17. Future Developments & Research** #### **Ongoing Development Areas** - **Higher Strength Grades**: Development of 1500+ MPa grades - **Improved Weldability**: Reduced pre-heat requirements - **Enhanced Corrosion Resistance**: Weathering steel versions - **Thicker Plate Capabilities**: Extended thickness ranges #### **Research Initiatives** - Fatigue behavior in various environments - Weld joint optimization for high-strength applications - Advanced forming technologies - Digital twin integration for life prediction --- ### **18. Conclusion** **Böhler-Uddeholm TOUGHTEC® SF** represents a significant advancement in high-performance steel plate technology, offering an unprecedented combination of high strength, exceptional toughness, and excellent fatigue resistance. This innovative material fills the critical gap between conventional structural steels and specialized tool steels, providing engineers and designers with new possibilities for optimizing equipment performance, reducing weight, and extending service life. The unique balance of properties makes TOUGHTEC® SF particularly valuable for applications where conventional materials face limitations—whether due to inadequate toughness at high strength levels, insufficient fatigue resistance, or excessive weight. Its ability to withstand demanding service conditions while maintaining structural integrity makes it an ideal choice for safety-critical applications across multiple industries. While the initial material cost is higher than conventional steels, the total cost of ownership benefits—including weight reduction, extended service life, reduced maintenance, and improved equipment performance—typically result in significant economic advantages over the equipment lifecycle. For engineers seeking to push the boundaries of equipment design and performance, TOUGHTEC® SF provides a proven, reliable material solution that delivers tangible benefits in the most demanding applications. --- **Manufacturer**: Böhler-Uddeholm (Voestalpine High Performance Metals AG) **Product Family**: High-Performance Steel Plates **Manufacturing Process**: Thermomechanical rolling with quenching and tempering **Primary Applications**: Heavy equipment, mobile machinery, high-stress structural components **Available Grades**: 700, 900, 1100, 1300 MPa yield strength levels **Quality Standards**: ISO 9001, ISO 14001, comprehensive material certification **Technical Support**: Global network of application engineers and metallurgical experts **Sustainability**: Environmental product declarations and life cycle assessment available -:- For detailed product information, please contact sales. -: Bohler-Uddeholm TOUGHTEC SF Specification Dimensions Size： Diameter 20-1000 mm Length <7257 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 TOUGHTEC SF Properties -:- For detailed product information, please contact sales. -:

Applications of Bohler-Uddeholm TOUGHTEC SF -:- For detailed product information, please contact sales. -: Chemical Identifiers Bohler-Uddeholm TOUGHTEC SF -:- For detailed product information, please contact sales. -:

Packing of Bohler-Uddeholm TOUGHTEC SF -:- 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 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 3728 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