Alloy 80A,Nimonic 80A Fittings,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 Fittings (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 **fittings** form, this material is engineered for high-temperature piping systems requiring exceptional creep resistance, oxidation resistance, and pressure integrity at temperatures up to **815°C (1500°F)**. The fittings are designed to maintain leak-proof connections and structural stability under severe thermal cycling and mechanical stress conditions. --- ### **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 | | 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 | --- ### **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 - **Impact Strength**: 20–35 J (15–25 ft-lb) **Pressure-Temperature Rating:** - Suitable for high-pressure applications up to 690 bar (10,000 psi) - Maintains pressure integrity at elevated temperatures - Excellent resistance to pressure-induced creep deformation --- ### **5. Key Characteristics & Advantages** - **High-Temperature Pressure Capability**: Maintains sealing integrity under internal pressure at elevated temperatures - **Excellent Creep Resistance**: Suitable for long-term service under sustained load - **Superior Oxidation Resistance**: Chromium content provides protection in oxidizing atmospheres - **Age-Hardenable**: Can be heat treated to optimize mechanical properties - **Good Weldability**: Compatible with standard welding processes - **Thermal Fatigue Resistance**: Withstands cyclic temperature variations in piping systems - **Dimensional Stability**: Maintains precise tolerances under thermal cycling --- ### **6. Product Applications** **Aerospace & Defense:** - Gas turbine engine fuel manifolds and connectors - Afterburner fuel piping fittings - Hydraulic and lubrication system connectors - Bleed air system components - Exhaust system fittings **Power Generation:** - High-temperature steam line fittings - Gas turbine exhaust duct connections - Heat recovery steam generator (HRSG) components - Boiler and superheater connections - Nuclear reactor instrumentation fittings **Industrial Processing:** - High-temperature furnace piping systems - Heat treatment atmosphere gas line fittings - Process reactor connections - Thermal oxidizer piping networks - Chemical processing equipment **Oil & Gas:** - High-temperature process piping fittings - Thermal recovery system components - Refinery heater connections - Downhole instrumentation fittings --- ### **7. International Standards** | Standard Organization | Standard Designation | Description | |----------------------|---------------------|-------------| | ASTM International | ASTM B366 | Factory-Made Wrought Nickel Alloy Fittings | | ASME | SB-366 | Factory-Made Wrought Fittings (Pressure Vessel Code) | | ASME | B16.9 | Factory-Made Wrought Buttwelding Fittings | | ASME | B16.11 | Forged Fittings, Socket-Welding and Threaded | | MSS | SP-43 | Wrought Stainless Steel Buttwelding Fittings | | ISO | ISO 18279 | Brazing — Imperfections in brazed joints | --- ### **8. Fittings Types & Specifications** **Buttweld Fittings:** - Elbows: 45°, 90°, 180° - Tees: Equal and reducing - Reducers: Concentric and eccentric - Caps and Stub Ends **Socket Weld Fittings:** - Unions, Elbows, Tees - Couplings, Half-Couplings - Plugs and Caps **Threaded Fittings:** - NPT and BSPT threads - High-temperature thread compounds compatible **Flanges:** - Slip-on, Weld Neck, Blind - Socket Weld, Lap Joint - Custom flange designs available **Special Fittings:** - Instrumentation ports - Thermowell fittings - Custom-designed components --- ### **9. Manufacturing & Quality** **Manufacturing Processes:** - Hot forging and cold forming - Precision machining - Heat treatment in controlled atmosphere - Full traceability of raw materials **Quality Assurance:** - Liquid penetrant testing per ASTM E165 - Radiographic examination per ASTM E94 - Hydrostatic testing per applicable codes - Dimensional verification to specified standards - Material certification per EN 10204 3.1/3.2 **Pressure Ratings:** - Schedule 5S through XXS - Class 150, 300, 600, 900, 1500, 2500 - Custom pressure ratings available --- ### **10. Installation & Maintenance** **Welding Procedures:** - **Preferred Method**: GTAW (TIG) - **Filler Metal**: AWS A5.14 ERNiCr-3 - **Preheat**: Generally not required - **Post-Weld Heat Treatment**: Recommended for critical service **Installation Guidelines:** - Proper alignment to avoid stress concentration - Appropriate gasket selection for high-temperature service - Correct bolt tightening procedures - Thermal expansion accommodation in system design **Maintenance Considerations:** - Regular inspection for oxidation and creep damage - Periodic pressure testing for critical systems - Proper handling to prevent mechanical damage --- ### **11. Compliance & Certification** - PED 2014/68/EU compliance - ASME Boiler and Pressure Vessel Code - NACE MR0175 for sulfide stress cracking - Customer-specific certifications available - Full material traceability maintained --- **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 2074 gallon liquid totes Special package is available on request.