Alloy 801,Incoloy 801 Other/Similar Specs,UNS N08801,E FORU

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

**Product Introduction: Alloy 801 / Incoloy 801 - Cross-Specification Overview (UNS N08801)** **Overview** Alloy 801 (Incoloy 801, UNS N08801) is a titanium-stabilized nickel-iron-chromium alloy specifically engineered for high-temperature service. This overview covers the material's fundamental characteristics across its various product forms, focusing on the unified properties that make it a preferred choice for demanding applications. The alloy offers an optimal combination of oxidation resistance, carburization resistance, and high-temperature strength, maintaining structural integrity in continuous service up to 1100°C (2012°F). Its titanium stabilization provides exceptional resistance to sensitization and intergranular attack, ensuring long-term performance in aggressive environments. **Key Characteristics** * Excellent oxidation resistance in continuous and cyclic service * Superior resistance to carburizing and sulfidizing atmospheres * Good creep-rupture strength and thermal stability * Enhanced resistance to intergranular corrosion * Maintains mechanical properties under thermal cycling conditions * Good fabricability and weldability using standard techniques **Chemical Composition (Weight %)** | Element | Content (%) | |---------|-------------| | Nickel (Ni) | 30.0 - 34.0 | | Chromium (Cr) | 19.0 - 22.0 | | Iron (Fe) | Balance | | Carbon (C) | 0.05 - 0.10 | | Titanium (Ti) | 0.15 - 0.60 | | Aluminum (Al) | ≤ 0.30 | | Manganese (Mn) | ≤ 1.50 | | Silicon (Si) | ≤ 1.00 | | Copper (Cu) | ≤ 0.75 | | Sulfur (S) | ≤ 0.015 | **Physical Properties** | Property | Value | |----------|-------| | Density | 7.95 g/cm³ (0.287 lb/in³) | | Melting Range | 1350-1400°C (2460-2550°F) | | Specific Heat (20°C) | 450 J/kg·K | | Thermal Conductivity (20°C) | 11.9 W/m·K | | Mean Coefficient of Thermal Expansion (20-1000°C) | 14.7 × 10⁻⁶/°C | | Electrical Resistivity | 1.00 μΩ·m | **Mechanical Properties (Typical Annealed Condition)** | Property | Value | |----------|-------| | Tensile Strength | ≥520 MPa (75 ksi) | | Yield Strength (0.2% Offset) | ≥205 MPa (30 ksi) | | Elongation | ≥30% | **Product Applications** * Petrochemical Industry: Ethylene furnace tubes, radiant coils, transfer line exchangers * Thermal Processing: Heat treatment fixtures, retorts, muffles, radiant tubes * Power Generation: Heat exchangers, superheater tubes, boiler components * Nuclear Power: Heat exchangers, core components * Industrial Heating: Combustion chambers, element support systems **International Standards & Specifications** * **ASTM/ASME:** - B409/SB-409: Plate, Sheet, and Strip - B163/SB-163: Seamless Condenser and Heat-Exchanger Tubes - B167/SB-167: Seamless Pipe and Tube - B564/SB-564: Forgings - B366/SB-366: Fittings * **Aerospace:** - AMS 5512: Sheet, Strip, and Plate - AMS 5715: Forgings * **European Standards:** - DIN 17742: Nickel-Iron-Chromium Alloys - EN 10095: Heat Resisting Steels and Nickel Alloys - Werkstoff Nr. 1.4875 * **Other Specifications:** - UNS N08801 - AFNOR NC 21 Fe D - ISO 6207 (Type 11) **Note:** This overview provides general characteristics applicable across product forms. Specific requirements for individual product forms (sheet, plate, tube, pipe, fittings, forgings) should be verified against the relevant material specification standards. **Disclaimer:** The information provided is for reference purposes. For design and specification, consult the complete and latest version of the applicable standards and material certification documents. Properties may vary based on manufacturing process, heat treatment, and product form.

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 3012 gallon liquid totes Special package is available on request.