Alloy 800H,Incoloy 800H Strip,N08810,E FORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA15，American Specs:AMS 5766 Bar and Forgings AMS 5871 Sheet, Strip and Plate ASTM B408 ASTM B564 ASTM A240 ASTM A480，German Specs:WS 1.4876 WS 1.4958 WS 1.4959

### **Technical Data Sheet: Alloy 800H / Incoloy 800H Strip (UNS N08810)** --- #### **1.0 Product Overview** **Alloy 800H Strip** (commercially known as **Incoloy 800H Strip**, UNS **N08810**) is the thin, narrow-width coiled product form of a nickel-iron-chromium superalloy specifically engineered for high-temperature applications requiring precise dimensional control and consistent mechanical properties. The "H" designation indicates controlled chemistry with elevated carbon content (0.05-0.10%) and specific thermal processing to achieve optimal grain structure for enhanced creep and stress-rupture properties in thin-section applications. This strip material combines excellent high-temperature performance with superior formability, making it ideal for precision components in demanding thermal environments. --- #### **2.0 Chemical Composition** | Element | Content (%) (Per ASTM B409) | Function | |---------|------------------------------|----------| | **Nickel (Ni)** | 30.0 - 35.0 | Austenitic matrix formation, oxidation and carburization resistance | | **Chromium (Cr)** | 19.0 - 23.0 | High-temperature oxidation and sulfidation resistance | | **Iron (Fe)** | ≥ 39.5 | Balance element, provides alloy matrix | | **Carbon (C)** | 0.05 - 0.10 | **Key element for "H" grade** - enhances creep rupture strength | | **Aluminum (Al)** | 0.15 - 0.60 | Oxidation resistance through protective scale formation | | **Titanium (Ti)** | 0.15 - 0.60 | Stabilization and high-temperature strengthening | | **Manganese (Mn)** | ≤ 1.50 | Hot workability improvement | | **Copper (Cu)** | ≤ 0.75 | - | | **Silicon (Si)** | ≤ 1.00 | Enhances oxidation and carburization resistance | | **Sulfur (S)** | ≤ 0.015 | Impurity control | *Note: Aluminum + Titanium content ≥ 0.85% for N08810 specification* --- #### **3.0 Physical Properties** | Property | Metric Value | Imperial Value | Condition | |----------|--------------|----------------|-----------| | **Density** | 8.03 g/cm³ | 0.29 lb/in³ | At 20°C (68°F) | | **Melting Range** | 1354-1384°C | 2470-2520°F | - | | **Specific Heat** | 460 J/kg·K | 0.11 Btu/lb·°F | At 21°C (70°F) | | **Mean Coefficient of Thermal Expansion** | 16.6 × 10⁻⁶ /K | 9.2 × 10⁻⁶ /°F | 20-650°C (70-1200°F) | | **Thermal Conductivity** | 15.6 W/m·K | 9.0 Btu·in/hr·ft²·°F | At 21°C (70°F) | | **Electrical Resistivity** | 116 μΩ·cm | 45.8 μΩ·in | At 21°C (70°F) | | **Modulus of Elasticity** | 201 GPa | 29.1 × 10⁶ psi | At 21°C (70°F) | | **Magnetic Permeability** | < 1.05 | < 1.05 | Essentially non-magnetic | --- #### **4.0 Mechanical Properties** **ASTM B409 - Strip Product (Annealed Condition)** - **Tensile Strength:** 450-620 MPa | 65-90 ksi - **Yield Strength (0.2% Offset):** 170-380 MPa | 25-55 ksi - **Elongation in 2 inches:** 30% minimum (Annealed condition) **Temper Designations & Properties** - **Annealed (Soft):** RB 65-80 | Excellent formability - **¼ Hard:** RB 75-85 | Good formability with higher strength - **½ Hard:** RB 80-90 | Moderate formability - **Full Hard:** RB 90+ | Maximum strength, limited formability **High-Temperature Performance** - **Maximum Service Temperature:** 815°C (1500°F) continuous - **Creep Strength:** Excellent retention in thin sections - **Stress Rupture:** Superior performance under sustained loading --- #### **5.0 International Standards & Specifications** | Standard Type | Standard Number | Description | |---------------|-----------------|-------------| | **UNS** | **N08810** | Unified Numbering System | | **ASTM** | **B409/B409M** | Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip | | **ASME** | **SB-409** | ASME Boiler and Pressure Vessel Code | | **EN/DIN** | **1.4876** | Material Number X8NiCrAlTi32-21 | | **ISO** | **6207** | Nickel alloy strip specifications | --- #### **6.0 Product Applications** **Electronic & Electrical Components** - High-temperature heating elements - Thermocouple sheaths and protection tubes - Electrical resistance components - Lead frames and connectors **Automotive & Aerospace** - Turbocharger heat shields - Exhaust system gaskets and seals - Thermal management components - Engine compartment heat shields **Industrial Furnace Components** - Radiant tube assemblies - Heat treatment fixture parts - Continuous furnace belts and chains - Thermal processing trays and carriers **Precision Instrumentation** - High-temperature sensor components - Instrumentation diaphragms - Pressure sensor elements - Temperature control devices **Chemical Processing** - Catalyst support grids - Filter elements and screens - Distillation column packing - Reactor internals --- #### **7.0 Fabrication Characteristics** **Forming & Stamping** - Excellent deep drawing characteristics - Good springback control in tempered conditions - Suitable for high-speed stamping operations - Minimum bend radii: 1t (annealed), 2t (hard tempers) **Heat Treatment** - Solution annealing: 980-1065°C (1800-1950°F) - Rapid cooling for optimal properties - Stress relieving available for formed parts **Welding & Joining** - Excellent weldability: GTAW, laser, resistance welding - Low thermal conductivity requires adjusted parameters - Post-weld heat treatment recommended for critical applications **Surface Finishes** - **2B:** Bright cold-rolled finish - **2D:** Matte finish - **BA:** Bright annealed finish - **Special:** Polished, coated, or plated finishes available --- #### **8.0 Dimensional Specifications** **Standard Thickness Range** - 0.05mm to 2.0mm (0.002" to 0.080") **Standard Width Range** - 20mm to 600mm (0.75" to 24") **Available Forms** - Coils: ID 400-600mm, OD up to 1500mm - Straight lengths: Up to 4000mm - Slit-to-width precision: ±0.1mm **Tolerance Standards** - Thickness: ±5% standard, ±3% precision - Width: ±0.1mm for slit edges - Camber: 1mm per meter maximum --- #### **9.0 Key Advantages** - **Precision Dimensional Control:** Tight tolerances for automated manufacturing - **Superior High-Temperature Strength:** Excellent creep resistance in thin sections - **Outstanding Formability:** Suitable for complex stamping and forming operations - **Consistent Mechanical Properties:** Uniform characteristics throughout coil length - **Excellent Surface Quality:** Multiple finish options for various applications - **Good Weldability:** Compatible with all common welding processes - **Non-Magnetic Characteristic:** Essential for electronic applications --- #### **10.0 Quality Assurance** **Testing & Certification** - Mill Test Certificate 3.1 per EN 10204 - Chemical analysis for each heat - Mechanical properties certification - Dimensional inspection reports - Surface quality verification **Special Testing Available** - Hardness testing (Rockwell, Vickers) - Grain size determination - Non-destructive testing (eddy current, ultrasonic) - High-temperature property verification **Packaging** - Protective winding with interleaving - Waterproof and vapor-proof wrapping - Custom packaging for sensitive applications --- ### **Conclusion** **Alloy 800H / Incoloy 800H Strip (UNS N08810)** offers an exceptional combination of high-temperature performance, precise dimensional characteristics, and superior formability. Its controlled chemistry and specialized processing make it ideal for precision components requiring reliable performance in aggressive thermal environments. The material's consistency and reliability ensure excellent manufacturing yields and long-term service life in the most demanding applications across aerospace, automotive, electronics, and industrial heating sectors.

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 1904 gallon liquid totes Special package is available on request.