Alloy 706，Inconel 706 Rod，UNS N09706，EFORU

British Specs:，American Specs:AMS 5701 Bar and Forgings AMS 5702 Bar and Forgings AMS 5703 Bar and Forgings AMS 5605 Sheet, Strip and Plate AMS 5606 Sheet, Strip and Plate，German Specs:

### **Product Datasheet: Alloy 706 (Inconel® 706) Rod // UNS N09706** --- #### **Material Overview** Alloy 706 is a precipitation-hardenable nickel-iron-chromium alloy rod specifically engineered for applications requiring high strength, excellent machinability, and good creep resistance at elevated temperatures up to 1300°F (704°C). The rod form offers superior mechanical properties and dimensional stability, making it ideal for precision-machined components in critical applications. --- #### **Chemical Composition (Weight %)** | Element | Minimum | Maximum | Element | Minimum | Maximum | |---------|---------|---------|---------|---------|---------| | Ni | 39.0 | 44.0 | Fe | 35.0 | 40.0 | | Cr | 14.5 | 17.5 | Nb | 2.5 | 3.3 | | Mo | - | 1.0 | Ti | 1.5 | 2.0 | | Al | 0.1 | 0.4 | C | - | 0.08 | | Mn | - | 0.50 | Si | - | 0.50 | | P | - | 0.03 | S | - | 0.02 | | Cu | - | 0.50 | B | - | 0.02 | --- #### **Physical Properties** | Property | Value (Metric) | Value (Imperial) | |----------|----------------|------------------| | Density | 8.05 g/cm³ | 0.291 lb/in³ | | Melting Range | 1365-1425°C | 2490-2600°F | | Thermal Conductivity (21°C) | 11.2 W/m·K | 7.8 Btu·in/hr·ft²·°F | | Mean Coefficient of Thermal Expansion (21-538°C) | 14.2 μm/m·K | 7.9 x 10⁻⁶ in/in/°F | | Modulus of Elasticity | 206 GPa | 29.9 x 10⁶ psi | | Electrical Resistivity | 1.12 μΩ·m | 44.1 μΩ·in | --- #### **Mechanical Properties (Typical - Rod)** | Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Reduction of Area (%) | |-----------|------------------------|----------------------|----------------|----------------------| | Annealed | 745-895 | 345-550 | 30-45 | 45-60 | | Aged (Solution + Double Aging) | 1240-1380 | 1035-1170 | 12-20 | 20-35 | --- #### **International Specifications** **ASTM Standards:** - B637 - Precipitation-Hardening Nickel Alloy Rods, Bars, and Wires **Aerospace Standards:** - AMS 5703 - Bars, Forgings, and Rings - AMS 5704 - Forging Stock **International Equivalents:** - UNS: N09706 - EN: NiCr15Fe7NbTi - DIN: 2.4696 - GB: GH706 --- #### **Rod Specifications** **Available Forms:** - Round rods - Hexagonal bars - Square bars - Custom shapes **Diameter Range:** - Standard: 6 mm to 300 mm (0.25" to 12") - Larger diameters available upon request **Length:** - Standard: 3-6 meters (10-20 feet) - Cut-to-length available - Random lengths **Surface Finish:** - Hot finished - Cold drawn - Turned - Polished - Centerless ground **Tolerances:** - Standard commercial tolerances - Precision tolerances available - Special dimensional requirements accommodated --- #### **Heat Treatment** **Solution Treatment:** - 1700-1800°F (925-980°C) for 1 hour, rapid air cool or faster **Aging Treatment:** - 1325°F (720°C) for 8 hours, furnace cool to 1150°F (620°C) - Hold at 1150°F (620°C) for 8 hours, air cool --- #### **Key Characteristics** - **Excellent Machinability**: Superior to most precipitation-hardening superalloys in rod form - **High Strength**: Develops high tensile and yield strength after proper aging treatment - **Good Creep Resistance**: Maintains strength under load at elevated temperatures - **Thermal Stability**: Retains mechanical properties after exposure to high temperatures - **Predictable Performance**: Consistent properties throughout rod cross-section - **Good Surface Finish**: Capable of achieving fine surface finishes after machining --- #### **Typical Applications** **Aerospace & Defense:** - Gas turbine engine shafts - Compressor disks and hubs - Turbine spacers and seals - Engine mounting components - Landing gear parts **Power Generation:** - Gas turbine rotor components - Generator shafts - Turbine disks - High-temperature fasteners - Coupling components **Oil & Gas:** - Downhole tool mandrels - Wellhead component shafts - Valve stems and trim - Measurement tool bodies - Drill string components **Industrial Machinery:** - High-strength drive shafts - Pump rotors and impellers - Compressor rods - High-temperature fixtures - Tooling components --- #### **Machining Characteristics** **Turning:** - Speed: 20-35 m/min (65-115 ft/min) - Feed: 0.15-0.25 mm/rev (0.006-0.010 in/rev) - Depth of cut: 2.5-5.0 mm (0.100-0.200 in) **Drilling:** - Speed: 10-15 m/min (30-50 ft/min) - Feed: 0.10-0.18 mm/rev (0.004-0.007 in/rev) - Use high-pressure coolant **Milling:** - Speed: 25-40 m/min (80-130 ft/min) - Feed per tooth: 0.10-0.20 mm (0.004-0.008 in) - Use climb milling technique --- #### **Quality Assurance** - Chemical composition certification - Mechanical property testing - Ultrasonic testing available - Macroetch examination - Grain flow verification - Full traceability maintained *Note: Inconel® is a registered trademark of Special Metals Corporation. Properties may vary depending on diameter, heat treatment, and processing. Consult technical datasheets for application-specific recommendations.*

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 1768 gallon liquid totes Special package is available on request.