Alloy 702,Inconel 702 Plate,UNS N07702,E FORU

British Specs:，American Specs: AMS 5550 Sheet, Strip and Plate，German Specs:

### **Product Introduction: Alloy 702 / INCONEL® 702 Plate (UNS N07702)** #### **Overview** INCONEL® 702 (UNS N07702) plate is a high-performance nickel-chromium-aluminum alloy specifically engineered for extreme high-temperature applications requiring exceptional oxidation resistance and structural integrity. This precipitation-hardenable material maintains excellent mechanical properties and corrosion resistance at temperatures up to 1200°C (2200°F), making it ideal for critical structural applications in aggressive thermal environments. --- ### **Key Features & Advantages** - **Exceptional oxidation resistance** up to 1200°C (2200°F) - **Excellent high-temperature strength** and creep rupture properties - **Superior resistance to carburization** and sulfidation - **Outstanding thermal fatigue resistance** under cycling conditions - **Good weldability** and fabrication characteristics - **Excellent structural stability** during prolonged high-temperature exposure --- ### **Chemical Composition (Typical % Weight)** | Element | Content (%) | Role in Alloy | |---------|-------------|---------------| | **Nickel (Ni)** | Balance | Matrix element providing high-temperature strength | | **Chromium (Cr)** | 14.0-17.0 | Primary oxidation resistance | | **Aluminum (Al)** | 2.75-3.75 | Forms protective alumina scale | | **Iron (Fe)** | 0.5-2.5 | - | | **Titanium (Ti)** | 0.25-0.75 | Precipitation hardening element | | **Zirconium (Zr)** | 0.01-0.10 | Enhances oxidation resistance | | **Manganese (Mn)** | 0.50 max | - | | **Silicon (Si)** | 0.50 max | - | | **Copper (Cu)** | 0.50 max | - | | **Carbon (C)** | 0.05 max | - | --- ### **Physical Properties** | Property | Value | |---------|-------| | **Density** | 7.95 g/cm³ (0.287 lb/in³) | | **Melting Point** | 1370-1425°C (2500-2600°F) | | **Thermal Conductivity** | 15.1 W/m·K at 20°C | | **Thermal Expansion** | 14.2 μm/m·K at 20-100°C | | **Specific Heat** | 460 J/kg·K at 20°C | | **Electrical Resistivity** | 1.18 μΩ·m at 20°C | | **Modulus of Elasticity** | 221 GPa (32 x 10^6 psi) | --- ### **Mechanical Properties (Plate - Aged Condition)** #### **Room Temperature Properties** | Property | Value | |---------|-------| | **Tensile Strength** | 830-1000 MPa (120-145 ksi) | | **Yield Strength (0.2% Offset)** | 520-670 MPa (75-97 ksi) | | **Elongation** | 18-28% | | **Hardness** | HRB 90-100 | #### **Elevated Temperature Properties** - **Stress Rupture Strength**: 55 MPa (8 ksi) at 980°C (1800°F) for 100 hours - **Creep Strength**: Excellent long-term performance at high temperatures - **Thermal Fatigue Resistance**: Superior performance under thermal cycling - **Structural Stability**: Maintains dimensional integrity at high temperatures --- ### **International Standards** | Standard | Specification | Application | |----------|---------------|-------------| | **ASTM** | B168 | Plate, Sheet, and Strip | | **ASME** | SB168 | Boiler and Pressure Vessel Code | | **UNS** | N07702 | Unified Numbering System | | **DIN** | 2.4665 | German Standard | | **AMS** | AMS 5548 | Plate and Sheet | --- ### **Product Specifications** #### **Plate Dimensions & Tolerances** - **Thickness Range**: 5mm to 150mm (0.187" to 6") - **Width Range**: 1000mm to 2000mm (39" to 78") - **Length Range**: 2000mm to 6000mm (78" to 236") - **Thickness Tolerance**: ±5% of nominal thickness #### **Available Conditions** - **Solution Annealed**: Optimal for fabrication and forming - **Precipitation Hardened**: Maximum strength properties - **Hot Rolled**: As-rolled condition - **Stress Relieved**: For dimensional stability #### **Surface Finish Options** - **Hot Rolled, Annealed & Pickled**: Standard finish - **Cold Rolled**: Smooth finish for specific applications - **Machined**: Precision surface for critical applications - **Grit Blasted**: Uniform matte finish --- ### **Heat Treatment** **Standard Heat Treatment Cycle:** - **Solution Treatment**: 1150-1200°C (2100-2200°F), rapid cooling - **Aging Treatment**: 800-850°C (1470-1560°F) for 16-24 hours, air cooling **Special Considerations for Plate:** - Controlled atmosphere recommended for surface protection - Uniform heating and cooling rates essential for flatness - Stress relief after heavy machining operations - Solution annealing after welding or severe forming --- ### **Product Applications** #### **Industrial Heating & Heat Treatment** - **Furnace Components**: Retorts, muffles, and radiant tubes - **Heat Treatment Fixtures**: Baskets, trays, and support structures - **Industrial Oven Parts**: Liners, doors, and structural supports - **Brazing Fixtures**: High-temperature jigs and fixtures #### **Chemical & Petrochemical Processing** - **Reformer Furnace Parts**: Headers and outlet components - **Reactor Components**: High-temperature reactor vessels - **Heat Exchanger Parts**: Plates and structural elements - **Process Vessels**: High-temperature containment systems #### **Aerospace & Defense** - **Jet Engine Components**: Combustion chambers and afterburner parts - **Rocket Motor Components**: Nozzle segments and support structures - **Exhaust Systems**: High-temperature ducting and supports - **Test Facility Equipment**: High-temperature test stands #### **Power Generation** - **Gas Turbine Components**: Combustion liners and transition pieces - **Heat Recovery Systems**: Structural supports and ducting - **Nuclear Applications**: Core components and support structures - **Advanced Power Systems**: High-temperature structural plates #### **Specialized Applications** - **Glass Manufacturing**: Forming molds and support equipment - **Semiconductor Processing**: Diffusion plates and furnace components - **Research Equipment**: High-temperature test apparatus - **Automotive**: Turbocharger components and exhaust systems --- ### **Fabrication & Processing** #### **Machining Guidelines** - **Tool Material**: Carbide tools recommended for production work - **Cutting Parameters**: Moderate speeds with positive rake angles - **Coolant Requirements**: Adequate cooling to control work hardening - **Chip Control**: Proper chip breakers essential for efficient machining #### **Welding Characteristics** - **Preferred Method**: GTAW (TIG) with matching filler metal - **Filler Metal**: INCONEL Filler Metal 72 recommended - **Pre-heat**: Generally not required - **Post-Weld Heat Treatment**: Recommended for critical applications #### **Forming Operations** - **Hot Working**: 1050-1200°C (1920-2190°F) recommended - **Cold Working**: Possible in annealed condition with intermediate annealing - **Bending Requirements**: Minimum bend radius 3T for annealed condition - **Press Forming**: Suitable for complex shapes in annealed condition --- ### **Quality Assurance & Testing** #### **Standard Testing Protocol** - **Chemical Analysis**: Spectroscopic verification of composition - **Mechanical Testing**: Tensile, hardness, and impact tests - **Macro Examination**: Etchant testing for soundness - **Dimensional Verification**: Compliance with specified tolerances #### **Non-Destructive Testing** - **Ultrasonic Testing**: Internal quality assessment - **Dye Penetrant Inspection**: Surface defect detection - **Radiographic Testing**: For critical applications - **Visual Inspection**: Surface quality evaluation #### **Certification & Documentation** - **Mill Test Certificates**: EN 10204 3.1/3.2 - **Material Traceability**: Full heat-to-part tracking - **Process Documentation**: Complete manufacturing records - **Compliance Certificates**: International standard certification --- ### **Performance Characteristics** #### **Oxidation Resistance** - **Continuous Service**: Up to 1200°C (2200°F) - **Cyclic Oxidation**: Excellent resistance to spalling - **Scaling Resistance**: Minimal weight gain at high temperatures - **Surface Stability**: Forms protective, adherent oxide layer #### **Corrosion Resistance** - **Carburization Resistance**: Excellent in hydrocarbon environments - **Sulfidation Resistance**: Good performance in sulfur-containing atmospheres - **Chloride Resistance**: Moderate resistance to chloride attack - **Nitriding Resistance**: Good performance in nitrogen atmospheres --- ### **Why Choose Our INCONEL 702 Plate?** - **Manufacturing Expertise**: Advanced plate production technology - **Quality Assurance**: Comprehensive testing and certification - **Technical Support**: Application engineering expertise - **Global Standards Compliance**: Certified to international specifications - **Proven Performance**: Established track record in critical applications - **Custom Solutions**: Tailored dimensions and processing options **Contact us today for technical specifications and quotation for INCONEL 702 plate products. Our engineering team provides comprehensive support from material selection through fabrication and installation.** --- *Disclaimer: INCONEL® is a registered trademark of Special Metals Corporation. The information provided is for technical reference only. Final material selection should be verified through appropriate testing and engineering analysis for specific applications.*

Packing of Standard Packing: 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 2981 gallon liquid totes Special package is available on request.