Alloy 706，Inconel 706 Plate，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) Plate // UNS N09706** --- #### **Material Overview** Alloy 706 is a precipitation-hardenable nickel-iron-chromium alloy plate offering an exceptional combination of high strength, excellent machinability, and good creep resistance up to 1300°F (704°C). The plate form provides superior mechanical properties and dimensional stability for structural applications, pressure vessels, and high-temperature components requiring 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 | Impact Strength | |-----------------|------------------|----------------|------------|-----------------| | 5-25 mm | 1240-1380 MPa | 1035-1170 MPa | 15-22% | 25-45 J | | 25-100 mm | 1200-1350 MPa | 1000-1150 MPa | 12-18% | 20-35 J | | 100-200 mm | 1150-1300 MPa | 950-1100 MPa | 10-16% | 15-30 J | --- #### **International Standards** **ASTM Standards:** - B637 - Precipitation-Hardening Nickel Alloy Bars, Forgings, and Forging Stock - B443 - Nickel Alloy Plate, Sheet, and Strip (Modified Requirements) **Aerospace Standards:** - AMS 5703 - Bars, Forgings, and Rings - AMS 5704 - Forging Stock **International Equivalents:** - UNS: N09706 - EN: NiCr15Fe7NbTi - DIN: 2.4696 - JIS: NCF 706 --- #### **Product Specifications** **Plate Types:** - **Hot Rolled Plate**: As-rolled condition - **Solution Annealed Plate**: Soft condition for forming - **Aged Plate**: Fully heat treated to maximum strength - **Machined Plate**: Precision surface finished **Size Range:** - **Thickness**: 5 mm to 200 mm (0.187" to 8") - **Width**: 1000 mm to 3000 mm (39" to 118") - **Length**: 2000 mm to 8000 mm (78" to 315") - **Weight**: Up to 5000 kg per plate **Surface Finish:** - Hot rolled, pickled and descaled - Machine cleaned (MC) - Rough turned (RT) - Precision ground (PG) --- #### **Heat Treatment** **Solution Annealing:** - 1700-1800°F (925-980°C) for 1-2 hours, 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** - **High Strength-to-Weight Ratio**: Excellent mechanical properties in heavy sections - **Superior Machinability**: Better machinability than most nickel-based superalloys - **Good Weldability**: Can be welded using standard processes with proper procedure - **Thermal Stability**: Maintains dimensional stability during thermal cycling - **Excellent Creep Resistance**: Good creep rupture strength at elevated temperatures - **Uniform Properties**: Consistent mechanical properties throughout plate thickness --- #### **Typical Applications** **Aerospace & Defense:** - Engine mounting plates and frames - Structural support plates - Missile body sections - Satellite structural components - Aircraft landing gear support plates **Power Generation:** - Gas turbine casing sections - Generator end plates - Turbine diaphragm plates - Heat exchanger support plates - Nuclear component supports **Oil & Gas:** - Pressure vessel heads and shells - Wellhead component plates - Subsea manifold plates - Platform structural plates - Compressor base plates **Industrial Equipment:** - High-temperature furnace plates - Press and mold plates - Machine tool structural plates - High-strength base plates - Processing equipment frames --- #### **Fabrication & Processing** **Machining Guidelines:** - **Turning**: 20-35 m/min (65-115 ft/min) - **Milling**: 25-40 m/min (80-130 ft/min) - **Drilling**: 10-15 m/min (30-50 ft/min) - Use positive rake carbide tools - Maintain adequate coolant flow **Welding Procedures:** - **Process**: GTAW, GMAW, SMAW - **Filler Metal**: AWS A5.14 ERNiFeCr-2 - **Preheat**: 400-600°F (204-316°C) - **Post-Weld Heat Treatment**: Required for optimum properties **Forming Operations:** - Hot forming: 1600-1800°F (871-982°C) - Cold forming: Annealed condition recommended - Minimum bend radius: 3x plate thickness --- #### **Quality Assurance** **Testing & Inspection:** - Ultrasonic testing per ASTM A578 - Mechanical property testing - Chemical analysis verification - Dimensional inspection - Surface quality assessment **Certification:** - Mill Test Certificate 3.1 per EN 10204 - Chemical Analysis Certificate - Mechanical Test Reports - Ultrasonic Test Reports - Heat Treatment Certificates **Standards Compliance:** - NACE MR0175/ISO 15156 - ASME Boiler and Pressure Vessel Code - PED 2014/68/EU - Customer-specific requirements --- **Note:** *Inconel® is a registered trademark of Special Metals Corporation. All values are typical and may vary based on manufacturing process, heat treatment, and plate 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 1772 gallon liquid totes Special package is available on request.