Alloy 617，Inconel 617 Pipe，UNS N06617，EFORU

British Specs:，American Specs:AMS 5887 Bar and Forgings AMS 5888 Plate AMS 5889 Sheet and Strip，German Specs:WS 2.4663a

### **Alloy 617 / Inconel 617 Pipe / UNS N06617 – Nickel-Chromium-Cobalt-Molybdenum Alloy Pipe** **Product Overview** Inconel 617 Pipe (UNS N06617) is a nickel-chromium-cobalt-molybdenum alloy piping product specifically engineered for high-temperature applications requiring exceptional strength, oxidation resistance, and pressure integrity. This pipe maintains excellent mechanical properties and corrosion resistance at temperatures up to 1200°C (2192°F), making it ideal for gas turbine systems, heat treatment equipment, chemical processing, and high-temperature pressure applications. Its balanced composition provides outstanding performance in combustion atmospheres, carburizing environments, and aggressive chemical conditions. --- **Chemical Composition (ASTM B167 / ASTM B517)** | Element | Content (%) | |----------------|----------------| | **Nickel (Ni)** | 44.5 min | | **Chromium (Cr)**| 20.0–24.0 | | **Cobalt (Co)** | 10.0–15.0 | | **Molybdenum (Mo)**| 8.0–10.0 | | **Aluminum (Al)**| 0.8–1.5 | | **Iron (Fe)** | 3.0 max | | **Carbon (C)** | 0.05–0.15 | | **Manganese (Mn)**| 1.0 max | | **Silicon (Si)** | 1.0 max | | **Sulfur (S)** | 0.015 max | *The balanced composition provides exceptional high-temperature strength through solid solution strengthening and formation of protective chromium and aluminum oxide scales.* --- **Physical Properties** | Property | Value | |-------------------------------|---------------------------------| | **Density** | 8.36 g/cm³ (0.302 lb/in³) | | **Melting Range** | 1330–1380°C (2426–2516°F) | | **Electrical Resistivity** | 125 μΩ·cm (at 21°C) | | **Thermal Conductivity** | 13.4 W/m·K (at 100°C) | | **Mean Coefficient of Thermal Expansion** | 12.8 μm/m·°C (20–100°C) | | **Modulus of Elasticity** | 211 GPa (30,600 ksi) | | **Magnetic Permeability** | <1.005 (Essentially non-magnetic)| --- **Mechanical Properties (Pipe – Solution Annealed Condition)** | Property | Room Temperature | 815°C (1500°F) | 980°C (1800°F) | |-----------------------------|------------------|----------------|----------------| | **Tensile Strength** | 700–850 MPa | 330–430 MPa | 140–190 MPa | | **Yield Strength (0.2% Offset)** | 290–430 MPa | 210–280 MPa | 110–150 MPa | | **Elongation in 2"** | 40–55% | 45–60% | 60–75% | | **Hardness** | 80–95 HRB | 65–80 HRB | 50–65 HRB | | **Burst Pressure** | Excellent | Good | Fair | **Pressure-Temperature Ratings** - **Schedule 5S**: 110 psi at 980°C (1800°F) - **Schedule 10S**: 230 psi at 980°C (1800°F) - **Schedule 40**: 460 psi at 980°C (1800°F) --- **Pipe Specifications & Available Forms** **Pipe Types** - Seamless pipe (ASTM B167) - Welded pipe (ASTM B517) - Heat exchanger tubes - Instrumentation piping - High-temperature process pipes **Size Ranges** - **Nominal Pipe Size**: 1/8" to 24" NPS - **Wall Thickness**: Schedule 5S to XXS - **Length**: Random (18–24 feet), double random, cut to length **Standard Specifications** - **Seamless Pipe**: ASTM B167, ASME SB167 - **Welded Pipe**: ASTM B517, ASME SB517 - **Dimensions**: ASME B36.19M, ASME B36.10M --- **Key Characteristics & Advantages** 1. **Exceptional High-Temperature Strength** – Maintains mechanical properties up to 1200°C (2192°F) 2. **Outstanding Oxidation Resistance** – Excellent performance in oxidizing atmospheres up to 1150°C (2102°F) 3. **Excellent Carburization Resistance** – Superior performance in carburizing environments 4. **Good Thermal Stability** – Resists thermal fatigue and microstructural degradation 5. **Excellent Fabricability** – Can be welded, bent, and formed using standard techniques 6. **Resistance to Sulfur Attack** – Performs well in sulfur-containing atmospheres 7. **Good Creep Rupture Strength** – Maintains pressure integrity at elevated temperatures --- **Product Applications** **Gas Turbine Systems** - Combustor liner piping - Transition duct systems - Hot gas path piping - Afterburner fuel lines - Exhaust system components **Chemical Processing** - Catalytic reactor piping - Reformer furnace tubes - High-temperature heat exchanger tubes - Process heater piping - Pyrolysis reactor systems **Power Generation** - Heat recovery steam generator tubes - Advanced boiler tubing - High-temperature steam lines - Nuclear reactor helium coolant pipes - Superheater and reheater components **Aerospace & Defense** - Rocket engine propellant lines - Jet engine bleed air systems - High-temperature hydraulic lines - Thermal management system piping - Exhaust gas recirculation systems **Heat Treatment Industry** - Radiant tubes for furnaces - Retort atmosphere piping - Heat treatment gas supply lines - Annealing line components - Carburizing furnace piping --- **International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | **N06617** | Unified Numbering System | | **ASTM** | B167 | Nickel-Chromium-Iron Alloy Seamless Pipe and Tube | | **ASTM** | B517 | Welded Nickel-Chromium-Iron Alloy Pipe | | **ASME** | SB167 | Boiler and Pressure Vessel Code | | **ASME** | SB517 | Boiler and Pressure Vessel Code | | **AMS** | 5884 | Aerospace Material Specification | | **DIN** | 2.4663 | German Standard | | **EN** | NiCr23Co12Mo | European Standard | --- **Fabrication & Installation** **Welding Procedures** - **Preferred Methods**: GTAW (TIG), GMAW (MIG) - **Filler Metals**: ERNiCrCoMo-1, ENiCrCoMo-1 - **Shielding Gas**: Argon or argon-helium mixtures - **Preheating**: Not required - **Post-Weld Heat Treatment**: Generally not necessary **Bending & Forming** - **Cold Bending**: Minimum bend radius 3x OD - **Hot Bending**: 1175–1230°C (2150–2250°F) - **Tube Expansion**: Good capability for roller expansion - **Flaring**: Standard 37° flare connections **Installation Guidelines** - **Support Spacing**: Standard spacing with high-temperature supports - **Thermal Expansion**: 12.8 μm/m·°C (20–100°C) - **Gasket Materials**: High-temperature graphite or ceramic fiber - **Bolt Materials**: Matching or compatible high-temperature alloys --- **Heat Treatment** **Solution Annealing** - **Temperature**: 1150–1200°C (2100–2200°F) - **Time**: 30 minutes minimum - **Cooling**: Rapid air cool or water quench - **Atmosphere**: Controlled atmosphere for scale-free surfaces **Stress Relieving** - **Temperature**: 870–980°C (1600–1800°F) - **Time**: 1 hour per inch of thickness - **Cooling**: Air cool to room temperature --- **Quality Assurance & Testing** **Standard Testing** - Chemical analysis verification - Tensile testing at room temperature - Hardness testing - Flattening test - Flaring test - Hydrostatic or pneumatic testing **Non-Destructive Testing** - Ultrasonic testing per ASTM A450 - Eddy current testing - Liquid penetrant examination - Radiographic examination (welded pipe) **Certification Requirements** - Mill Test Certificates per EN 10204 3.1 - Chemical analysis certificates - Mechanical test reports - Hydrostatic test reports - NDE reports as specified --- **High-Temperature Performance** **Oxidation Resistance Data** - **Maximum Service Temperature**: 1150°C (2102°F) - **Cyclic Oxidation Life**: >1000 cycles at 1100°C - **Oxidation Rate**: <0.4 mm/year at 1100°C - **Scale Adherence**: Excellent, self-healing Cr₂O₃ and Al₂O₃ scales **Creep Properties** - **1000h Rupture Strength at 980°C**: 45 MPa (6.5 ksi) - **1000h Rupture Strength at 1095°C**: 16 MPa (2.3 ksi) - **Minimum Creep Rate**: Low even at elevated temperatures --- **Corrosion Resistance Performance** **Excellent Resistance To** - High-temperature oxidation - Carburizing atmospheres - Nitriding environments - Sulfur-containing gases - Molten salt corrosion **Good Resistance To** - Nitric acid vapors - Alkaline solutions - Organic acid environments - Atmospheric corrosion - Steam and condensate --- **Pressure-Temperature Ratings** **ASME B31.3 Ratings (Example)** - **500°F (260°C)**: 1280 psi (Schedule 40) - **800°F (427°C)**: 920 psi (Schedule 40) - **1000°F (538°C)**: 730 psi (Schedule 40) - **1200°F (649°C)**: 520 psi (Schedule 40) --- **Packaging & Handling** **Standard Packaging** - Plastic end caps for protection - Wooden crates or steel bundles - Weather-proof wrapping - Clear identification labeling **Storage & Handling** - Store in clean, dry conditions - Protect from mechanical damage - Keep original packaging until installation - Use proper lifting equipment --- **Conclusion** Inconel 617 Pipe (UNS N06617) provides an exceptional combination of high-temperature strength, outstanding oxidation resistance, and reliable performance in high-temperature pressure applications. Its superior resistance to oxidation, carburization, and thermal cycling makes it ideal for gas turbine systems, chemical processing, power generation, and high-temperature piping systems. Available in both seamless and welded forms with comprehensive international certification, Inconel 617 pipe offers engineers and designers a trusted solution for demanding high-temperature applications where reliability, safety, and long-term performance are essential requirements.

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 1744 gallon liquid totes Special package is available on request.