Alloy 800,Incoloy 800 Sheet,N08800,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 Datasheet: Alloy 800 / Incoloy® 800 Sheet (UNS N08800)** --- #### **1. Product Overview** **Alloy 800**, commercially known as **Incoloy® 800**, is a nickel-iron-chromium superalloy designed for excellent strength and corrosion resistance at high temperatures. The **sheet** form of **UNS N08800** is precision-rolled to provide superior surface quality and dimensional accuracy, making it ideal for fabrication of chemical processing equipment, heat exchangers, and high-temperature components operating up to **1100°C (2012°F)**. --- #### **2. Chemical Composition** | Element | Content (%) | |---------|-------------| | Nickel (Ni) | 30.0–35.0 | | Chromium (Cr) | 19.0–23.0 | | Iron (Fe) | ≥ 39.5 | | Carbon (C) | ≤ 0.10 | | Manganese (Mn) | ≤ 1.50 | | Silicon (Si) | ≤ 1.00 | | Copper (Cu) | ≤ 0.75 | | Sulfur (S) | ≤ 0.015 | | Aluminum (Al) | 0.15–0.60 | | Titanium (Ti) | 0.15–0.60 | *Note: Aluminum + Titanium content maintained at 0.85–1.20%* --- #### **3. Physical Properties** | Property | Metric Value | Imperial Value | |----------|--------------|----------------| | Density | 7.94 g/cm³ | 0.286 lb/in³ | | Melting Point | 1350–1400°C | 2462–2552°F | | Specific Heat (20°C) | 500 J/kg·K | 0.12 Btu/lb·°F | | Thermal Conductivity (20°C) | 11.7 W/m·K | 81.2 Btu·in/hr·ft²·°F | | Mean Coefficient of Thermal Expansion (20–100°C) | 14.0 μm/m·°C | 7.8 × 10⁻⁶ in/in·°F | | Modulus of Elasticity | 200 GPa | 29.0 × 10⁶ psi | --- #### **4. Mechanical Properties** **Room Temperature Properties (Annealed Condition):** | Property | Typical Value | |----------|---------------| | Tensile Strength | 520–690 MPa (75–100 ksi) | | Yield Strength (0.2% Offset) | 210–345 MPa (30–50 ksi) | | Elongation | 30–50% | | Hardness (Rockwell B) | 75–95 HRB | **High Temperature Performance:** - Excellent creep and stress rupture strength - Maintains mechanical properties at elevated temperatures - Good thermal fatigue resistance --- #### **5. International Standards** | Standard Body | Standard Number | Specification | |---------------|-----------------|---------------| | ASTM International | ASTM B409 | Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip | | ASME | SB-409 | Pressure Vessel Components | | ASTM International | ASTM B906 | General Requirements for Flat-Rolled Nickel Alloys | | EN | EN 10095 | Heat-resisting steels and nickel alloys | | DIN | DIN 2.4858 | Material Designation | --- #### **6. Product Applications** **Chemical Processing Equipment:** - Reactor vessels and linings - Heat exchanger components - Process vessel fabrication - Column and tower sections - Storage tank construction **Heat Treatment Industry:** - Furnace linings and curtains - Heat treatment fixtures - Retort assemblies - Baffles and heat shields - Conveyor components **Power Generation:** - Boiler components - Ductwork systems - Heat recovery systems - Turbine components - Structural supports **Aerospace & Defense:** - Engine components - Exhaust systems - Heat shields - High-temperature structures --- #### **7. Key Features & Benefits** - **Excellent oxidation resistance** at high temperatures - **Good carburization resistance** - **High temperature strength** maintenance - **Good thermal stability** and fatigue resistance - **Excellent corrosion resistance** - **Superior formability** and weldability --- #### **8. Corrosion Resistance** - Outstanding oxidation resistance up to 1100°C - Good resistance to carburizing atmospheres - Suitable for sulfur-containing environments - Resists chloride stress corrosion cracking - Good performance in steam and combustion gases --- #### **9. Fabrication Characteristics** **Forming & Bending:** - Excellent formability in annealed condition - Suitable for deep drawing and press forming - Can be bent to tight radii - Good springback characteristics **Welding:** - Excellent weldability using GTAW, GMAW, SMAW - Recommended filler metals: ENiCrFe-2/3 - Preheating generally not required - Post-weld heat treatment available **Machining:** - Use positive rake tools - Moderate speeds with heavy feeds - Adequate cooling recommended - Good surface finish achievable --- #### **10. Available Specifications** **Sheet Dimensions:** - Thickness: 0.5mm to 6.0mm (0.020" to 0.250") - Width: Up to 1500mm (60") - Length: Up to 3000mm (120") **Surface Finishes:** - No. 1 Finish - Hot rolled, annealed, and pickled - 2B Finish - Cold rolled, bright annealed - BA Finish - Bright annealed - Special polished finishes available **Temper Conditions:** - Annealed - Solution annealed - Stress relieved --- #### **11. Quality Assurance** - Certified to ASTM B409 standard - Dimensional accuracy verification - Surface quality inspection - Full material traceability - Chemical and mechanical certification - EN 10204 3.1/3.2 certification available --- **Disclaimer:** *Incoloy® is a registered trademark of Special Metals Corporation. This information is for reference purposes only. For specific applications, always consult appropriate material standards and manufacturer's technical data sheets. Performance in actual service conditions should be verified through testing.*

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 1890 gallon liquid totes Special package is available on request.