Alloy 800,Incoloy 800 Plate,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 Plate (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 **plate** form of **UNS N08800** is manufactured for structural applications, pressure vessels, and high-temperature equipment requiring superior performance in demanding environments 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 rupture strength up to 700°C (1290°F) - Good stress rupture properties - Maintains mechanical integrity at elevated temperatures --- #### **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** **Pressure Vessel Manufacturing:** - Reactor vessels - Heat exchanger shells - Pressure containers - Process vessels - Storage tanks **Heat Treatment Equipment:** - Furnace linings and components - Heat treatment fixtures - Retort plates - Baffles and supports - Roller hearth plates **Chemical Processing:** - Reactor internals - Column trays - Distillation components - Process equipment linings - Acid handling equipment **Power Generation:** - Boiler components - Heat recovery systems - Turbine housings - Ductwork systems - Structural supports --- #### **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** in various environments - **Good weldability** and fabricability --- #### **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 & Processing** **Machining Characteristics:** - Use positive rake tools with sharp edges - Recommended speeds: 10–20 m/min - Heavy feeds with adequate cooling - Carbide tools preferred for production work **Welding & Joining:** - Excellent weldability using GTAW, GMAW, SMAW - Recommended filler metals: ENiCrFe-2/3 - Preheating generally not required - Post-weld heat treatment recommended for critical service **Forming & Bending:** - Good cold forming characteristics - Can be formed using standard equipment - Minimum bend radii depend on thickness - Annealing may be required after severe forming --- #### **10. Available Specifications** **Plate Dimensions:** - Thickness: 5mm to 100mm (0.187" to 4") - Width: Up to 2000mm (78") - Length: Up to 6000mm (236") **Surface Conditions:** - Hot rolled, annealed, and pickled - No. 1 finish - Mill finish - Special surface treatments available **Quality Grades:** - Commercial quality - Pressure vessel quality - Aerospace quality - Nuclear quality --- #### **11. Quality Assurance** - Certified to ASTM B409 standard - Ultrasonic testing per ASTM A578 - Full material traceability - Chemical and mechanical certification - EN 10204 3.1/3.2 certification available - PED 2014/68/EU compliance --- **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 1889 gallon liquid totes Special package is available on request.