Alloy 80A,Nimonic 80A Pipe,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 Pipe (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 **pipe** form, this material is engineered for high-temperature pressure applications requiring exceptional creep resistance, oxidation resistance, and mechanical integrity at temperatures up to **815°C (1500°F)**. The pipe product is specifically designed for conveying hot gases, fuels, and other media in extreme environments. --- ### **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 (Solution Treated & Aged)** **Room Temperature Properties:** - **Tensile Strength**: 1000–1200 MPa (145–174 ksi) - **Yield Strength (0.2% Offset)**: 700–850 MPa (102–123 ksi) - **Elongation**: 15–25% - **Hardness**: 285–350 HB **Elevated Temperature Performance:** - **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) **Pressure Rating Capability:** - Maintains structural integrity under internal pressure at high temperatures - Excellent resistance to pressure-induced creep deformation --- ### **5. Key Characteristics & Advantages** - **High-Temperature Pressure Capability**: Maintains strength and creep resistance under pressurized conditions at elevated temperatures - **Age-Hardenable**: Can be heat treated to achieve optimal mechanical properties for specific service conditions - **Superior Oxidation Resistance**: Chromium content provides excellent protection against oxidizing atmospheres - **Excellent Creep Rupture Strength**: Suitable for long-term service under stress at high temperatures - **Good Weldability**: Can be welded using appropriate procedures and filler materials - **Thermal Fatigue Resistance**: Withstands cyclic temperature variations in piping systems --- ### **6. Product Applications** **Aerospace & Defense:** - Gas turbine engine fuel manifolds - Afterburner fuel piping - Hot air bleed systems - Exhaust system components - Hydraulic and lubrication lines in high-temperature zones **Power Generation:** - High-temperature steam lines - Superheater tubing systems - Gas turbine exhaust ducts - Heat recovery steam generator (HRSG) components **Industrial Processing:** - High-temperature furnace piping - Heat treatment atmosphere lines - Process gas conveyance systems - Pyroprocessing equipment - Radiant tube applications **Oil & Gas:** - High-temperature process piping - Thermal reactor systems - Exhaust and emission control systems --- ### **7. International Standards** | Standard Organization | Standard Designation | Description | |----------------------|---------------------|-------------| | ASTM International | ASTM B619 | Welded Pipe | | ASTM International | ASTM B622 | Seamless Pipe and Tube | | ASTM International | ASTM B517 | Seamless and Welded Pipe | | ASME | SB-619 | Welded Pipe (Pressure Vessel Code) | | ASME | SB-622 | Seamless Pipe and Tube | | Aerospace (SAE) | AMS 5580 | General Purpose Tubing | | European Standards | EN 10216-5 | Seamless Steel Tubes for Pressure Purposes | --- ### **8. Pipe Specifications & Availability** **Manufacturing Methods:** - **Seamless Pipe**: Hot finished or cold drawn - **Welded Pipe**: EBW, GTAW, or laser welded **Size Ranges:** - **OD Range**: 6 mm to 600 mm (0.25" to 24") - **Wall Thickness**: 1 mm to 50 mm (0.04" to 2.0") - **Lengths**: Random (6-7 meters) or cut-to-length **Standard Specifications:** - Schedule 5S through XXS - Pressure ratings per ASME B36.10/B36.19 - Custom sizes and configurations available --- ### **9. Heat Treatment** **Standard Pipe Heat Treatment:** 1. **Solution Treatment**: 1080°C (1975°F) for 8 hours, air cool 2. **Aging**: 700°C (1290°F) for 16 hours, air cool **Special Considerations for Pipe:** - Stress relieving after forming or welding - Localized heat treatment for repair and modification - Full heat treatment after severe cold working --- ### **10. Fabrication & Installation** **Welding Procedures:** - **Preferred Method**: GTAW (TIG) - **Filler Metal**: AWS A5.14 ERNiCr-3 or matching composition - **Preheat**: Generally not required - **Post-Weld Heat Treatment**: Recommended for critical applications **Forming & Bending:** - Hot forming: 1050–1150°C (1920–2100°F) - Cold bending with appropriate bend radii - Stress relief recommended after severe forming **Quality Control:** - Hydrostatic testing per applicable codes - Non-destructive examination (RT, UT, PT) - Dimensional verification - Surface quality inspection --- ### **11. Quality Assurance** - Chemical and mechanical certification - Non-destructive testing reports - Hydrostatic test certificates - Material traceability documentation - Compliance with ASME, ASTM, and customer specifications --- **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 2069 gallon liquid totes Special package is available on request.