Alloy 801,Incoloy 801 Rod,UNS N08801,E FORU

British Specs:，American Specs: AMS 5552 Sheet, Strip and Plate，German Specs:

### **Product Introduction: Alloy 801 / INCOLOY® 801 Rod (UNS N08801)** #### **Overview** INCOLOY® 801 (UNS N08801) rod is a nickel-iron-chromium alloy specifically engineered for high-temperature applications requiring exceptional oxidation resistance and structural stability. This austenitic alloy offers superior performance in oxidizing, carburizing, and sulfidizing environments, making it an ideal choice for critical components in petrochemical processing, heat treatment equipment, and power generation industries. --- ### **Key Features & Advantages** - **Excellent oxidation resistance** up to 1150°C (2100°F) - **Superior resistance to carburization** and sulfidation - **High strength retention** at elevated temperatures - **Good thermal stability** and structural integrity - **Excellent resistance to thermal cycling** fatigue - **Good machinability** and weldability characteristics --- ### **Chemical Composition (Typical % Weight)** | Element | Content (%) | Role in Alloy | |---------|-------------|---------------| | **Nickel (Ni)** | 30.0-35.0 | Provides austenitic structure and high-temperature strength | | **Chromium (Cr)** | 19.0-23.0 | Enhances oxidation and corrosion resistance | | **Iron (Fe)** | Balance | Matrix element providing structural integrity | | **Carbon (C)** | 0.05-0.10 | Improves strength at elevated temperatures | | **Titanium (Ti)** | 0.15-0.60 | Stabilization against sensitization | | **Aluminum (Al)** | 0.15-0.60 | Enhances oxidation resistance | | **Manganese (Mn)** | 1.50 max | - | | **Silicon (Si)** | 1.00 max | Improves high-temperature oxidation resistance | | **Copper (Cu)** | 0.75 max | - | | **Sulfur (S)** | 0.015 max | - | --- ### **Physical Properties** | Property | Value | |---------|-------| | **Density** | 7.95 g/cm³ (0.287 lb/in³) | | **Melting Point** | 1380-1425°C (2515-2600°F) | | **Thermal Conductivity** | 12.5 W/m·K at 20°C | | **Thermal Expansion** | 14.4 μm/m·K at 20-100°C | | **Specific Heat** | 460 J/kg·K at 20°C | | **Modulus of Elasticity** | 200 GPa (29 x 10^6 psi) | | **Electrical Resistivity** | 1.02 μΩ·m at 20°C | --- ### **Mechanical Properties (Rod - Annealed Condition)** #### **Room Temperature Properties** | Property | Value | |---------|-------| | **Tensile Strength** | 550-690 MPa (80-100 ksi) | | **Yield Strength (0.2% Offset)** | 240-345 MPa (35-50 ksi) | | **Elongation** | 30-45% | | **Reduction of Area** | 50-65% | | **Hardness** | RB 75-95 | #### **Elevated Temperature Properties** - **Stress Rupture Strength**: 55 MPa (8 ksi) at 815°C (1500°F) for 100 hours - **Creep Strength**: Excellent long-term performance at high temperatures - **Thermal Fatigue Resistance**: Superior performance under thermal cycling - **Scaling Resistance**: Minimal weight gain at high temperatures --- ### **International Standards** | Standard | Specification | Application | |----------|---------------|-------------| | **ASTM** | B166 | Nickel-Chromium-Iron Alloy Rod | | **ASME** | SB166 | Boiler and Pressure Vessel Code | | **UNS** | N08801 | Unified Numbering System | | **DIN** | 1.4875 | German Standard | | **EN** | NiCr32AlTi | European Standard | --- ### **Product Specifications** #### **Rod Dimensions & Tolerances** - **Diameter Range**: 5mm to 300mm (0.2" to 12") - **Length**: Standard 3-6 meters, cut-to-size available - **Straightness**: Commercial and precision grades - **Surface Finish**: Hot finished, turned, ground, or polished #### **Available Conditions** - **Hot Worked**: As-forged or hot-rolled condition - **Annealed**: Optimal for machining and fabrication - **Solution Treated**: For maximum corrosion resistance - **Stress Relieved**: For dimensional stability --- ### **Heat Treatment** **Recommended Heat Treatment:** - **Annealing Temperature**: 980-1065°C (1800-1950°F) - **Cooling Method**: Rapid cooling (water quenching) - **Soaking Time**: 30 minutes per inch of thickness **Special Considerations for Rod:** - Solution annealing for optimum corrosion resistance - Stress relief after heavy machining operations - Controlled cooling to prevent carbide precipitation - Homogenization treatment for improved properties --- ### **Product Applications** #### **Petrochemical Industry** - **Reformer Furnace Components**: Tube hangers and support rods - **Ethylene Cracking**: Radiant tube supports and hangers - **Hydrogen Plants**: Catalyst tube supports - **Transfer Line Components**: Structural supports and brackets #### **Heat Treatment Equipment** - **Furnace Components**: Radiant tube hangers and supports - **Retort Systems**: Support rods and structural members - **Basket Assemblies**: Hanger rods and fastening elements - **Fixture Components**: High-temperature jigs and fixtures #### **Power Generation** - **Boiler Components**: Tube supports and hanger rods - **Heat Exchanger Parts**: Support rods and structural elements - **Turbine Components**: High-temperature fasteners and pins - **Ducting Systems**: Support rods and structural members #### **Industrial Applications** - **Glass Manufacturing**: Forming tool components and supports - **Steel Processing**: Annealing furnace components - **Chemical Processing**: Reactor internals and agitator shafts - **Incineration Systems**: Heat exchanger support elements --- ### **Fabrication & Processing** #### **Machining Guidelines** - **Tool Material**: Carbide tools recommended for production work - **Cutting Speed**: Moderate speeds with positive rake angles - **Coolant Requirements**: Adequate cooling recommended - **Chip Control**: Proper chip breakers essential #### **Welding Characteristics** - **Preferred Methods**: GTAW (TIG), GMAW (MIG) - **Filler Metals**: INCOLOY 801 or INCONEL 82/182 - **Preheat**: Generally not required - **Post-Weld Heat Treatment**: Recommended for critical applications #### **Forming Operations** - **Hot Working**: 1150-1250°C (2100-2280°F) - **Cold Working**: Good formability in annealed condition - **Forging Characteristics**: Good hot workability with proper control --- ### **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 - **Magnetic Particle Testing**: Surface and near-surface flaws - **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 1150°C (2100°F) - **Cyclic Oxidation**: Excellent resistance to spalling - **Scaling Resistance**: Minimal weight gain at high temperatures - **Surface Stability**: Forms protective, adherent chromium oxide scale #### **Corrosion Resistance** - **Carburization Resistance**: Excellent in hydrocarbon environments - **Sulfidation Resistance**: Good in sulfur-containing atmospheres - **Nitriding Resistance**: Moderate in nitrogen atmospheres - **Chloride Attack**: Limited resistance to chloride stress corrosion --- ### **Why Choose Our INCOLOY 801 Rod?** - **Manufacturing Expertise**: Advanced thermomechanical processing - **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 INCOLOY 801 rod products. Our engineering team provides comprehensive support from material selection through final machining.** --- *Disclaimer: INCOLOY® 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 3003 gallon liquid totes Special package is available on request.