Alloy 617，Inconel 617 Bar(Round bar, Flat bar)，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 Bar (Round Bar, Flat Bar) / UNS N06617 – Nickel-Chromium-Cobalt-Molybdenum Alloy Bar** **Product Overview** Inconel 617 Bar (Round Bar and Flat Bar) in UNS N06617 is a nickel-chromium-cobalt-molybdenum alloy with aluminum addition, specifically designed for high-temperature applications requiring exceptional strength, oxidation resistance, and structural stability. These bar products offer excellent mechanical properties and fabricability for components operating in extreme thermal environments up to 1200°C (2192°F). The combination of round and flat bar forms provides design flexibility for various industrial applications while maintaining superior performance in combustion atmospheres and chemical processing conditions. --- **Chemical Composition (ASTM B166)** | 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 (Annealed Condition)** **Round Bar Properties** | Property | Room Temperature | 815°C (1500°F) | 980°C (1800°F) | |-----------------------------|------------------|----------------|----------------| | **Tensile Strength** | 730–900 MPa | 350–450 MPa | 150–200 MPa | | **Yield Strength (0.2% Offset)** | 310–450 MPa | 220–300 MPa | 120–160 MPa | | **Elongation in 4D** | 40–55% | 45–60% | 60–75% | | **Hardness** | 85–100 HRB | 70–85 HRB | 55–70 HRB | **Flat Bar Properties** | Property | Hot Rolled | Cold Finished | |-----------------------------|------------|---------------| | **Tensile Strength** | 760–930 MPa| 730–900 MPa | | **Yield Strength (0.2% Offset)** | 340–480 MPa| 310–450 MPa | | **Elongation in 2"** | 35–50% | 40–55% | --- **Product Specifications & Available Forms** **Round Bar** - **Diameter Range**: 6 mm to 300 mm (0.25" to 12") - **Condition**: Hot finished, cold finished, centerless ground - **Tolerance**: ±0.1 mm for precision ground bars - **Length**: 3–6 meters (10–20 feet), cut to size available **Flat Bar** - **Thickness**: 3 mm to 150 mm (0.125" to 6") - **Width**: 10 mm to 300 mm (0.375" to 12") - **Condition**: Hot rolled, cold drawn, annealed - **Edge Types**: Square edges, rounded corners (as required) **Surface Conditions** - Hot rolled, annealed, and pickled - Cold drawn, annealed, and pickled - Centerless ground and polished - Turned and polished for precision applications --- **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 Machinability** – Can be machined to precise tolerances using standard methods 6. **Good Weldability** – Can be welded using common welding techniques with matching filler metals 7. **Resistance to Sulfur Attack** – Performs well in sulfur-containing atmospheres --- **Product Applications** **Gas Turbine Components** - Combustion chamber structural supports - Turbine casing mounting bars - Afterburner frame members - Hot gas path structural elements - Seal housing components **Aerospace & Defense** - Rocket engine structural frames - Jet engine mounting brackets - High-temperature fastener stock - Missile structural members - Thermal protection system supports **Chemical Processing** - Reactor support beams and columns - High-temperature valve bodies - Process heater structural members - Catalytic reactor internals - Reform furnace structural components **Power Generation** - Heat recovery system structural members - Advanced boiler support structures - High-temperature bolting materials - Turbine structural supports - Nuclear reactor components (helium-cooled) **Heat Treatment Industry** - Furnace roller support rails - Retort structural frames - Heat treatment fixture bases - Radiant tube mounting systems - Annealing line structural components --- **International Standards** | Standard Type | Standard Number | Specification | |---------------|-----------------|---------------| | **UNS** | **N06617** | Unified Numbering System | | **ASTM** | B166 | Nickel-Chromium-Iron Alloy Rod and Bar | | **ASME** | SB166 | Boiler and Pressure Vessel Code | | **AMS** | 5884 | Aerospace Material Specification | | **DIN** | 2.4663 | German Standard | | **EN** | NiCr23Co12Mo | European Standard | --- **Machining & Fabrication Guidelines** **Machining Parameters** - **Cutting Speed**: 10–20 m/min (30–65 SFM) for turning - **Feed Rate**: 0.10–0.20 mm/rev (0.004–0.008 IPR) - **Depth of Cut**: 1.5–3.0 mm (0.060–0.120 inches) - **Tool Material**: Carbide with positive rake angles recommended - **Coolant**: Required for optimum tool life and surface finish **Welding Characteristics** - **Weldability**: Excellent with proper procedures - **Methods**: GTAW (TIG), GMAW (MIG), SMAW - **Filler Metals**: ERNiCrCoMo-1, ENiCrCoMo-1 - **Preheat**: Not required - **Post-Weld Heat Treatment**: Generally not necessary **Forming Operations** - **Hot Working Temperature**: 1175–1230°C (2150–2250°F) - **Cold Working**: Good capability with intermediate annealing - **Minimum Bend Radius**: 2T for annealed material, 4T for cold worked material --- **Heat Treatment** **Solution Annealing** - **Temperature**: 1150–1200°C (2100–2200°F) - **Time**: 30 minutes to 2 hours depending on section size - **Cooling**: Rapid air cool or water quench - **Atmosphere**: Controlled atmosphere recommended for scale-free surface **Stress Relieving** - **Temperature**: 870–980°C (1600–1800°F) - **Time**: 1–4 hours depending on section size - **Cooling**: Air cool to room temperature --- **Quality Assurance & Testing** **Standard Testing** - Chemical analysis verification - Tensile testing at room temperature - Hardness testing (Rockwell B) - Macroetch examination - Dimensional verification **Non-Destructive Testing** - Ultrasonic testing per ASTM A388 - Liquid penetrant examination - Magnetic particle testing (when applicable) **Certification Requirements** - Mill Test Certificates per EN 10204 3.1 - Chemical analysis certificates - Mechanical test reports - Heat treatment records - NDE reports as specified --- **High-Temperature Performance** **Oxidation Resistance Data** - **Maximum Continuous Service**: 1150°C (2102°F) - **Cyclic Service**: Up to 1100°C (2012°F) - **Oxidation Rate**: <0.5 mm/year at 1100°C - **Scale Characteristics**: Forms protective Cr₂O₃ and Al₂O₃ scales **Creep and Rupture Properties** - **1000h Rupture Strength at 980°C**: 48 MPa (7 ksi) - **1000h Rupture Strength at 1095°C**: 17 MPa (2.5 ksi) - **Minimum Creep Rate**: 0.0001%/h at 980°C under 28 MPa stress --- **Corrosion Resistance Performance** **Excellent Resistance To** - High-temperature oxidation - Carburizing atmospheres - Nitriding environments - Sulfur-containing gases - Molten salt corrosion **Good Resistance To** - Nitric acid solutions - Organic compounds - Alkaline environments - Atmospheric corrosion - Steam and water vapor --- **Packaging & Handling** **Standard Packaging** - Wooden crates with protective coating - Plastic end caps for protection - Weather-proof wrapping - Clear identification and heat number labeling **Storage & Handling** - Store in clean, dry conditions - Protect from carbon steel contamination - Use separate storage from other metals - Employ proper lifting equipment for heavy sections --- **Conclusion** Inconel 617 Bar in round and flat forms (UNS N06617) offers an outstanding combination of exceptional high-temperature strength, excellent oxidation resistance, and versatile fabrication characteristics. The availability in both round and flat bar configurations provides engineers and manufacturers with flexible solutions for structural components, machining stock, and high-temperature applications across gas turbine, aerospace, chemical processing, and power generation industries. With comprehensive international standardization and proven performance in extreme environments, Inconel 617 bar products continue to be the material of choice for applications requiring reliability in high-temperature corrosive service conditions where structural integrity and long-term performance are paramount.

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 1743 gallon liquid totes Special package is available on request.