Alloy 80A,Nimonic 80A ,UNS N07080,E FORU

British Specs:BS 3072 NA20 BS HR1 Alloy 80A Bar BS HR201 Alloy 80A sheet BS HR401 Alloy 80A Tube BS HR601 Alloy 80A Bar (rivet)，American Specs:ASTM B637，German Specs:WS 2.4631 WS 2.4952,AFNOR NC 20TA

**Technical Datasheet: Alloy 80A (Nimonic 80A / UNS N07080)** **1. Introduction** Alloy 80A, commercially known as **Nimonic 80A** and standardized as **UNS N07080**, is a nickel-chromium age-hardenable superalloy strengthened by the addition of titanium and aluminum. This alloy is specifically designed for high-temperature applications requiring exceptional strength, corrosion resistance, and creep resistance at temperatures up to 815°C (1500°F). Developed originally for gas turbine engine components, Nimonic 80A offers an excellent balance of high-temperature properties and fabricability, making it a preferred choice for critical components in aerospace and industrial applications. **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Nickel (Ni) | Balance | Austenitic matrix, provides base corrosion resistance | | Chromium (Cr) | 18.0-21.0 | Confers oxidation and corrosion resistance | | Titanium (Ti) | 1.8-2.7 | Primary age-hardening element (forms γ' phase) | | Aluminum (Al) | 1.0-1.8 | Secondary age-hardening element (forms γ' phase) | | Iron (Fe) | ≤ 3.0 | Residual element | | Cobalt (Co) | ≤ 2.0 | Residual element | | Manganese (Mn) | ≤ 1.0 | Aids in deoxidation | | Silicon (Si) | ≤ 1.0 | Enhances oxidation resistance | | Carbon (C) | ≤ 0.10 | Contributes to strength | | Copper (Cu) | ≤ 0.2 | Residual element | | Zirconium (Zr) | ≤ 0.15 | Improves creep properties | | Boron (B) | ≤ 0.008 | Enhances grain boundary strength | | Sulfur (S) | ≤ 0.015 | Impurity element | **3. Physical Properties** | Property | Value | Condition | |----------|-------|-----------| | Density | 8.19 g/cm³ (0.296 lb/in³) | At 20°C | | Melting Point | 1360-1385°C (2480-2525°F) | - | | Thermal Expansion Coefficient | 13.9 μm/m·°C (7.7 μin/in·°F) | 20-100°C | | Thermal Conductivity | 11.7 W/m·K | At 20°C | | Specific Heat | 440 J/kg·K (0.105 Btu/lb·°F) | At 20°C | | Modulus of Elasticity | 214 GPa (31.0 × 10⁶ psi) | At 20°C | | Electrical Resistivity | 1.24 μΩ·m | At 20°C | **4. Mechanical Properties** **Solution Treated and Aged Condition (Room Temperature):** - Tensile Strength: 1000-1200 MPa (145-174 ksi) - Yield Strength (0.2% Offset): 700-850 MPa (102-123 ksi) - Elongation: 15-25% - Reduction of Area: 18-25% - Hardness: 285-350 HB **Elevated Temperature Properties:** - **650°C (1200°F)**: Tensile Strength ~ 800 MPa (116 ksi) - **750°C (1380°F)**: Tensile Strength ~ 600 MPa (87 ksi) - **815°C (1500°F)**: Tensile Strength ~ 400 MPa (58 ksi) **Creep Rupture Strength:** - 1000 hours at 750°C (1380°F): ~ 170 MPa (25 ksi) - 1000 hours at 815°C (1500°F): ~ 70 MPa (10 ksi) **5. Key Characteristics & Advantages** - **Age-Hardenable**: Can be precipitation hardened to achieve high strength levels through heat treatment - **Excellent Creep Resistance**: Maintains load-bearing capability under sustained stress at high temperatures - **Superior Oxidation Resistance**: Chromium content provides excellent protection against oxidizing environments - **Good Thermal Stability**: Retains mechanical properties after prolonged exposure to high temperatures - **Moderate Fabricability**: Can be machined, forged, and welded with proper techniques - **Proven Reliability**: Extensive service history in critical high-temperature applications **6. Product Applications** **Aerospace & Defense:** - Gas turbine engine blades and vanes - Turbine discs and wheels - Combustion chamber components - Afterburner parts - Exhaust system components **Industrial Gas Turbines:** - Turbine blades and nozzles - Rotor components - High-temperature fasteners - Sealing elements **Power Generation:** - Steam turbine blades - Nuclear reactor components - High-temperature bolting - Heat exchanger components **Automotive & Racing:** - Turbocharger components - High-performance engine valves - Racing exhaust systems - High-temperature fasteners **7. Heat Treatment** **Standard Heat Treatment Cycle:** 1. **Solution Treatment**: 1080°C (1975°F) for 8 hours, air cool 2. **Aging Treatment**: 700°C (1290°F) for 16 hours, air cool **Alternative Treatments Available:** - Modified solution temperatures for specific properties - Double aging treatments for optimized performance - Stress relieving treatments for fabricated components **8. International Standards** **ASTM Specifications:** - ASTM B637: Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock - ASTM B880: General Requirements for Chemical Check Analysis **Aerospace Specifications:** - AMS 5660: Bars, Forgings, and Rings - AMS 5702: Wire, Welding - AMS 5872: Sheet, Strip, and Plate **European Standards:** - EN 10095: Heat resisting steels and nickel alloys - BS HR 501: Nickel-chromium-titanium-aluminum alloy - DIN 17742: Wrought nickel and nickel alloys **International Equivalents:** - UNS: N07080 - ISO: NiCr20TiAl - JIS: NCF 80A - GB: GH4080A **9. Fabrication Notes** **Machining:** - Best machined in solution treated condition - Requires rigid setups and positive rake angles - Recommended use of carbide tools with adequate cooling **Welding:** - Weldable using GTAW and GMAW processes - Recommended filler metal: AWS A5.14 ERNiCr-3 - Post-weld heat treatment generally required **Forging:** - Forging temperature range: 1050-1150°C (1920-2100°F) - Requires controlled cooling after forging **Disclaimer**: This technical data is provided for informational purposes only. Properties may vary based on manufacturing process, heat treatment, and specific product form. For critical applications, consult the manufacturer's current technical data sheets and relevant industry standards. Always verify material certification and testing requirements for your specific application.

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 2066 gallon liquid totes Special package is available on request.