Alloy 80A,Nimonic 80A Forgings,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 Forgings (UNS N07080)** --- #### **1. Introduction** **Alloy 80A** (commercially known as **Nimonic 80A**, UNS N07080) is a nickel-chromium superalloy strengthened by age-hardening through titanium and aluminum additions. In **forgings** form, this material achieves superior mechanical properties through controlled deformation processes that refine the microstructure, enhance grain flow, and improve directional strength characteristics. Alloy 80A forgings deliver optimal performance in critical applications requiring exceptional high-temperature strength, oxidation resistance, and structural reliability at temperatures up to **815°C (1500°F)**. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Nickel (Ni) | Balance | Austenitic matrix, high-temperature stability | | Chromium (Cr) | 18.0–21.0 | Oxidation and corrosion resistance | | Titanium (Ti) | 1.8–2.7 | Primary age-hardening element (γ' precipitates) | | Aluminum (Al) | 1.0–1.8 | Secondary age-hardening element | | Iron (Fe) | ≤3.0 | Residual element | | Carbon (C) | ≤0.10 | Grain boundary strengthening | | Silicon (Si) | ≤1.0 | Oxidation resistance | | Manganese (Mn) | ≤1.0 | Deoxidation | | Copper (Cu) | ≤0.2 | Residual element | | Zirconium (Zr) | ≤0.15 | Creep property enhancement | | Boron (B) | ≤0.008 | Grain boundary strengthening | --- #### **3. Physical Properties** | Property | Value | Condition | |----------|-------|-----------| | Density | 8.19 g/cm³ (0.296 lb/in³) | At 20°C | | Melting Range | 1360–1385°C (2480–2525°F) | — | | Thermal Expansion Coefficient | 13.9 μm/m·°C | 20–100°C | | Thermal Conductivity | 11.7 W/m·K | At 20°C | | Specific Heat | 440 J/kg·K | 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 (Forged & Heat Treated)** **Room Temperature Properties:** - **Tensile Strength**: 1050–1250 MPa (152–181 ksi) - **Yield Strength (0.2% Offset)**: 750–900 MPa (109–130 ksi) - **Elongation**: 18–28% - **Reduction of Area**: 20–30% - **Hardness**: 300–360 HB - **Impact Strength**: 25–40 J **Elevated Temperature Performance:** - **650°C (1200°F)**: Tensile Strength ≈ 850 MPa (123 ksi) - **750°C (1380°F)**: Tensile Strength ≈ 650 MPa (94 ksi) - **815°C (1500°F)**: Tensile Strength ≈ 450 MPa (65 ksi) **Creep Rupture Strength (1000 hours):** - 750°C (1380°F): ≈180 MPa (26 ksi) - 815°C (1500°F): ≈75 MPa (11 ksi) --- #### **5. Key Characteristics & Advantages** - **Optimized Grain Structure**: Forging process refines grain size and improves mechanical properties - **Superior Directional Properties**: Controlled grain flow pattern enhances strength and fatigue resistance - **Enhanced Density**: Forging eliminates porosity and internal defects common in cast products - **Improved Impact Resistance**: Fine-grained structure provides better toughness and impact strength - **Excellent High-Temperature Capability**: Maintains structural integrity under extreme thermal and mechanical stress - **Superior Thermal Fatigue Resistance**: Withstands repeated thermal cycling without cracking - **Age-Hardenable**: Can be precipitation hardened to achieve optimal mechanical properties --- #### **6. Product Applications** **Aerospace & Defense:** - Gas turbine engine discs and hubs - Turbine blades and vanes - Compressor discs and shafts - Combustion chamber components - Afterburner parts - Rocket motor components **Power Generation:** - Gas turbine rotor components - Steam turbine blades and discs - Turbine wheels and shafts - High-temperature valve bodies - Nuclear reactor components **Industrial Processing:** - High-temperature valve stems and bodies - Furnace roller shafts and supports - Heat treatment fixture components - Process reactor internals - Extrusion dies and components **Automotive & Racing:** - Turbocharger wheels and shafts - High-performance engine valves - Racing engine components - Exhaust system parts --- #### **7. International Standards** | Standard Organization | Standard Designation | Description | |----------------------|---------------------|-------------| | ASTM International | ASTM B564 | Standard Specification for Nickel Alloy Forgings | | ASTM International | ASTM B637 | Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock | | Aerospace (SAE) | AMS 5660 | Bars, Forgings, and Rings (Solution Treated & Aged) | | ASME | SB-564 | Nickel Alloy Forgings (Pressure Vessel Code) | | European Standards | EN 10204 | Metallic Products - Types of Inspection Documents | | ISO | ISO 9725 | Nickel alloy forgings for general purposes | --- #### **8. Forging Capabilities & Specifications** **Forging Methods:** - **Open Die Forgings**: Large components up to 5000 kg - **Closed Die Forgings**: Complex shapes with minimal machining allowance - **Ring Rolled Forgings**: Seamless rings up to 3000 mm diameter - **Precision Forgings**: Near-net shape components **Size Ranges:** - **Weight Range**: 1 kg to 5000 kg - **Maximum Dimensions**: 3000 mm diameter × 6000 mm length - **Ring Forgings**: Up to 3000 mm OD × 1500 mm ID × 500 mm height **Quality Classes:** - **Commercial Grade**: General industrial applications - **Aerospace Grade**: Stringent quality requirements - **Nuclear Grade**: Ultra-high quality standards --- #### **9. Heat Treatment** **Standard Forging Heat Treatment:** 1. **Solution Treatment**: 1080°C (1975°F) for 8 hours, air cool 2. **Aging Treatment**: 700°C (1290°F) for 16 hours, air cool **Special Heat Treatments:** - **Solution Treating**: Various temperatures for specific properties - **Double Aging**: For enhanced creep resistance - **Stress Relieving**: For complex geometries - **Stabilization Treatment**: For dimensional stability --- #### **10. Quality Assurance & Testing** **Non-Destructive Testing:** - Ultrasonic testing per ASTM A388 - Liquid penetrant inspection per ASTM E165 - Radiographic examination per ASTM E94 - Magnetic particle testing (where applicable) **Destructive Testing:** - Tensile testing at room and elevated temperatures - Impact testing (Charpy) - Hardness testing - Macroetch testing per ASTM E340 - Microstructural examination **Certification & Documentation:** - Chemical analysis certification - Mechanical test reports - Heat treatment records - Non-destructive testing reports - Full traceability from melt to final product --- #### **11. Machining & Fabrication** **Machining Guidelines:** - **Optimal Condition**: Solution treated condition - **Tooling**: Carbide tools with positive rake angles - **Coolant**: Required for heavy machining operations - **Speeds and Feeds**: Moderate to maintain tool life **Welding Considerations:** - **Weldability**: Fair - requires special procedures - **Preferred Method**: GTAW (TIG) - **Filler Metal**: AWS A5.14 ERNiCr-3 - **Preheat & Post-Weld Heat Treatment**: Required --- **Disclaimer:** This technical data is for informational purposes only. Properties may vary based on manufacturing process, heat treatment, and specific product form. For critical applications, consult current manufacturer technical data sheets and relevant industry standards. Always verify material certification and testing requirements for specific service conditions.

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 2075 gallon liquid totes Special package is available on request.