Alloy 706，Inconel 706 Sheet，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) Sheet // UNS N09706** --- #### **Material Overview** Alloy 706 is a precipitation-hardenable nickel-iron-chromium alloy sheet offering an outstanding combination of high strength, excellent formability, and good creep resistance up to 1300°F (704°C). The sheet form provides superior mechanical properties and consistent performance for applications requiring thin-section components with reliable performance in demanding environments. --- #### **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 | | Specific Heat Capacity (21°C) | 440 J/kg·K | 0.105 Btu/lb·°F | --- #### **Mechanical Properties (Aged Condition)** | Thickness Range | Tensile Strength | Yield Strength | Elongation | Hardness | |-----------------|------------------|----------------|------------|----------| | 0.5-3.0 mm | 1280-1420 MPa | 1070-1210 MPa | 12-18% | 341-388 HB | | 3.0-6.0 mm | 1240-1380 MPa | 1035-1170 MPa | 14-20% | 331-375 HB | | 6.0-12.0 mm | 1200-1350 MPa | 1000-1150 MPa | 15-22% | 321-363 HB | --- #### **International Standards** **ASTM Standards:** - B443 - Nickel Alloy Plate, Sheet, and Strip - B906 - General Specification for Nickel Alloy Strip **Aerospace Standards:** - AMS 5599 - Nickel Alloy Sheet, Strip, and Plate - AMS 5703 - Bars, Forgings, and Rings **International Equivalents:** - UNS: N09706 - EN: NiCr15Fe7NbTi - DIN: 2.4696 - JIS: NCF 706 --- #### **Product Specifications** **Sheet Types:** - **Hot Rolled Sheet**: As-rolled condition - **Cold Rolled Sheet**: Precision rolled for consistent thickness - **Solution Annealed Sheet**: Soft condition for forming - **Aged Sheet**: Fully heat treated to maximum strength **Size Range:** - **Thickness**: 0.5 mm to 12.0 mm (0.020" to 0.472") - **Width**: 600 mm to 1500 mm (24" to 59") - **Length**: 2000 mm to 4000 mm (78" to 157") - **Weight**: Standard sheets or cut-to-size blanks **Surface Finish:** - 2B Finish - Bright cold rolled - No. 1 Finish - Hot rolled, annealed, and pickled - BA Finish - Bright annealed - Polished Finish - Special order --- #### **Heat Treatment** **Solution Annealing:** - 1700-1800°F (925-980°C) for 15-30 minutes, rapid cooling **Precipitation Aging:** - 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 Formability**: Good ductility for bending and forming operations - **High Strength-to-Weight Ratio**: Superior mechanical properties in thin sections - **Superior Surface Quality**: Consistent surface finish for critical applications - **Good Weldability**: Can be welded using standard processes - **Thermal Stability**: Maintains properties during thermal cycling - **Uniform Properties**: Consistent mechanical properties throughout sheet --- #### **Typical Applications** **Aerospace & Defense:** - Aircraft engine shrouds and covers - Missile body skins - Satellite structural panels - Heat shield components - Instrumentation panels **Power Generation:** - Gas turbine liner components - Heat exchanger baffles - Generator enclosure panels - Instrumentation covers - Access panel covers **Industrial Equipment:** - High-temperature furnace liners - Process equipment covers - Electrical enclosure panels - Heat treatment fixture plates - Protective shielding **Automotive & Transportation:** - Turbocharger components - Exhaust system shields - High-temperature gaskets - Heat exchanger plates - Sensor mounting plates --- #### **Fabrication & Processing** **Forming Operations:** - **Minimum Bend Radius**: 2x thickness (annealed), 3x thickness (aged) - **Deep Drawing**: Suitable in annealed condition - **Stamping**: Good for complex shapes - **Spinning**: Appropriate for symmetrical parts **Machining Guidelines:** - **Shearing**: Clean edges with minimal burr - **Punching**: Standard tooling applicable - **Laser Cutting**: Excellent results - **Waterjet Cutting**: No heat affected zone **Welding Procedures:** - **Process**: GTAW (TIG) preferred for thin sheets - **Filler Metal**: AWS A5.14 ERNiFeCr-2 - **Preheat**: 400-600°F (204-316°C) for thickness >3mm - **Post-Weld Heat Treatment**: Recommended for critical applications --- #### **Quality Assurance** **Testing & Inspection:** - Dimensional verification - Surface quality inspection - Mechanical property testing - Flatness measurement - Edge condition assessment **Certification:** - Mill Test Certificate 3.1 per EN 10204 - Chemical Analysis Certificate - Mechanical Test Reports - Surface Finish Certification - Heat Treatment Certificates **Standards Compliance:** - NACE MR0175/ISO 15156 - ASME Boiler and Pressure Vessel Code - Aerospace Industry Requirements - Customer-specific specifications --- **Note:** *Inconel® is a registered trademark of Special Metals Corporation. All values are typical and may vary based on manufacturing process, heat treatment, and sheet dimensions. Consult engineering specifications for critical applications.*

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 1773 gallon liquid totes Special package is available on request.