Alloy 800,Incoloy 800 Bar(Round bar, Flat bar),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 Bar (Round Bar, Flat Bar) 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 **bar** product form of **UNS N08800**, including both **round bars** and **flat bars**, is engineered for structural components, machining applications, and high-temperature fixtures requiring reliable performance 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 | Round Bar | Flat Bar | |----------|-----------|----------| | Tensile Strength | 520–690 MPa | 510–680 MPa | | Yield Strength (0.2% Offset) | 210–345 MPa | 200–335 MPa | | Elongation | 30–50% | 30–45% | | Hardness (Rockwell B) | 75–95 HRB | 75–95 HRB | **High Temperature Performance:** - Excellent creep and stress rupture properties - Maintains mechanical strength at elevated temperatures - Good thermal fatigue resistance --- #### **5. International Standards** | Standard Body | Standard Number | Specification | |---------------|-----------------|---------------| | ASTM International | ASTM B408 | Nickel-Iron-Chromium Alloy Rod and Bar | | ASME | SB-408 | Pressure Vessel Components | | ASTM International | ASTM B564 | Nickel Alloy Forgings | | AMS | AMS 5766 | Bars, Forgings, and Rings | | EN | EN 10095 | X5NiCrAlTi31-20 | | DIN | DIN 2.4858 | Material Designation | --- #### **6. Product Applications** **Round Bar Applications:** - **Heat Treatment Industry:** - Furnace roller shafts - Retort support rods - Heat treatment fixture pins - Basket and tray components - **Chemical Processing:** - Valve stems and shafts - Pump components - Mixer agitator shafts - Fastener stock - **Power Generation:** - Turbine components - Boiler supports - High-temperature studs - Nuclear applications **Flat Bar Applications:** - **Structural Components:** - Furnace rails and guides - Support brackets - Structural framing - Machine bases - **Industrial Equipment:** - Heat treatment fixtures - Process equipment supports - Baffles and weirs - Tooling and jigs --- #### **7. Key Features & Benefits** - **Excellent oxidation resistance** up to 1100°C - **Good carburization and nitriding resistance** - **High temperature strength** maintenance - **Good thermal stability** and fatigue resistance - **Excellent fabricability** and weldability - **Superior machinability** in annealed condition --- #### **8. Fabrication Characteristics** **Machining:** - Use positive rake tools with sharp edges - Recommended speeds: 10–25 m/min - Heavy feeds with adequate cooling - Carbide tools preferred for production work **Welding:** - Excellent weldability using GTAW, GMAW, SMAW - Matching filler metals recommended - Post-weld annealing for critical applications **Heat Treatment:** - Solution Annealing: 1100–1175°C - Stress Relieving: 870–950°C - Rapid cooling after annealing --- #### **9. Available Specifications** **Round Bar:** - Diameter Range: 5mm to 300mm (0.187" to 12") - Length: Standard random lengths or cut to size - Condition: Hot finished, annealed, or turned **Flat Bar:** - Thickness: 3mm to 150mm (0.125" to 6") - Width: 10mm to 600mm (0.375" to 24") - Condition: Hot rolled or annealed --- #### **10. Quality Assurance** - Certified to ASTM B408 and relevant standards - Full material traceability - Ultrasonic testing available - 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 1886 gallon liquid totes Special package is available on request.