Alloy 617，Inconel 617 Tube，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 Tube / UNS N06617 – Nickel-Chromium-Cobalt-Molybdenum Alloy Tube** **Product Overview** Inconel 617 Tube (UNS N06617) is a nickel-chromium-cobalt-molybdenum alloy tubing product engineered for extreme high-temperature applications requiring exceptional strength, oxidation resistance, and thermal stability. This tube maintains excellent mechanical properties and corrosion resistance at temperatures up to 1200°C (2192°F), making it ideal for heat exchangers, furnace components, chemical processing equipment, and high-temperature pressure systems. Its balanced composition provides outstanding performance in combustion atmospheres, carburizing environments, and aggressive chemical conditions. --- **Chemical Composition (ASTM B167 / ASTM B163)** | 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 (Tube – 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 | | **Collapse Strength** | Excellent | Good | Fair | --- **Tube Specifications & Available Forms** **Tube Types** - Seamless heat exchanger tubes (ASTM B163) - Welded and drawn tubes - Condenser tubes - Instrumentation tubes - Mechanical tubing - Hydraulic line tubing **Size Ranges** - **Outer Diameter**: 1/8" to 4" (3.2 mm to 101.6 mm) - **Wall Thickness**: 0.015" to 0.250" (0.38 mm to 6.35 mm) - **Length**: Up to 50 feet (15 meters) continuous length **Tolerances** - **OD Tolerance**: ±0.005" for precision tubes - **Wall Tolerance**: ±10% standard, ±5% special - **Straightness**: 0.015" per foot maximum --- **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 bent, expanded, and welded 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** **Heat Exchangers & Condensers** - High-temperature heat exchanger U-tubes - Surface condenser tubes - Feedwater heater tubes - Process heat recovery units - Waste heat boiler tubes **Chemical Processing** - Catalytic reactor tubes - Reformer furnace tubes - High-temperature heat exchanger tubing - Process heater tubes - Pyrolysis reactor tubes **Power Generation** - Heat recovery steam generator tubes - Advanced boiler tubes - Superheater and reheater tubes - Nuclear reactor components (helium-cooled) - Gas turbine recuperator tubes **Aerospace & Defense** - Rocket engine cooling jackets - Jet engine heat exchanger tubes - High-temperature hydraulic lines - Thermal management system tubing - Exhaust heat recovery tubes **Industrial Furnaces** - Radiant tubes - Retort tubes - Heat treatment furnace tubes - Annealing line tubes - Carburizing furnace tubes --- **International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | **N06617** | Unified Numbering System | | **ASTM** | B163 | Seamless Condenser and Heat-Exchanger Tubes | | **ASTM** | B167 | Nickel-Chromium-Iron Alloy Seamless Pipe and Tube | | **ASME** | SB163 | Boiler and Pressure Vessel Code | | **ASME** | SB167 | Boiler and Pressure Vessel Code | | **AMS** | 5884 | Aerospace Material Specification | | **DIN** | 2.4663 | German Standard | | **EN** | NiCr23Co12Mo | European Standard | --- **Fabrication & Installation** **Tube Expansion** - **Roller Expansion**: Excellent capability for tube rolling - **Expansion Limits**: Maximum 7% wall reduction - **Lubrication**: Use suitable tube rolling compounds - **Quality Control**: Mandatory pull-out force testing **Bending & Forming** - **Cold Bending**: Minimum bend radius 2x OD - **Hot Bending**: 1175–1230°C (2150–2250°F) - **Bend Quality**: Smooth inner surface maintained - **Springback**: Approximately 2–3° compensation required **Welding & Joining** - **Preferred Methods**: GTAW (TIG), orbital welding - **Filler Metals**: ERNiCrCoMo-1 - **Joint Preparation**: Precision machining required - **Quality Assurance**: 100% radiographic examination recommended --- **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** - Hydrostatic or pneumatic testing - Eddy current testing - Ultrasonic examination - Flattening test - Flaring test - Hardness testing **Non-Destructive Examination** - **Visual Inspection**: 100% surface examination - **Dimensional Verification**: OD, wall thickness, length - **Surface Quality**: Free from defects and contamination - **Certification**: Mill test certificates per EN 10204 3.1 **Special Testing** - **Intergranular Corrosion Test**: ASTM A262 Practice E - **Microstructure Examination**: Grain size assessment - **Pressure Testing**: Per ASME Section I or VIII requirements --- **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 --- **Technical Specifications** **Heat Exchanger Tube Standards** - **TEMA Standards**: Class R, C, and B - **HEI Standards**: Heat Exchange Institute requirements - **API Standards**: API 660, API 661 - **Customer Specifications**: Custom requirements **Pressure Ratings** - **ASME Section I**: Power boiler applications - **ASME Section VIII**: Pressure vessel requirements - **ASTM Standards**: Material specifications - **Design Codes**: ASME Code Case 1982 --- **Packaging & Handling** **Standard Packaging** - Individual plastic end caps - Wooden crates with separators - Weather-proof wrapping - Clear identification labeling **Special Packaging** - VCI (Vapor Corrosion Inhibitor) paper - Desiccant packs for moisture protection - Custom packaging for international shipment - Certified clean for nuclear applications --- **Conclusion** Inconel 617 Tube (UNS N06617) provides an outstanding combination of high-temperature strength, exceptional oxidation resistance, and reliable performance in heat transfer and pressure applications. Its superior resistance to oxidation, carburization, and thermal cycling makes it ideal for heat exchangers, chemical processors, power generation equipment, and high-temperature thermal systems. Available in both seamless and welded forms with comprehensive international certification, Inconel 617 tube offers engineers and designers a trusted solution for demanding applications where reliability, safety, and long-term high-temperature 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 1745 gallon liquid totes Special package is available on request.