Alloy 625，Inconel 625 Foil，Shim，UNS N06625，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA21，American Specs:AMS 5581 Tube AMS 5599 Sheet, Strip and Plate AMS 5666 Bar, Forgings AMS 5869 Sheet, Strip and Plate AMS 5879 Sheet, Strip and Foil AMS 5837 Welding Wire ASTM F3056 Powder AMS 7001 Powder，German Specs:WS 2.4856, AFNOR NC22DNb

### **Product Datasheet: Alloy 625 (Inconel® 625) Foil & Shim Stock // UNS N06625** --- #### **Material Overview** Alloy 625 is a nickel-chromium-molybdenum superalloy specifically engineered for applications requiring exceptional strength and corrosion resistance in thin-gauge forms. The alloy's solid-solution strengthened matrix, enhanced by molybdenum and niobium, delivers outstanding performance across extreme temperature ranges while maintaining excellent formability and dimensional stability in foil and shim configurations. --- #### **Chemical Composition (Weight %)** | Element | Minimum | Maximum | Element | Minimum | Maximum | |---------|---------|---------|---------|---------|---------| | Ni | 58.0 | - | Mo | 8.0 | 10.0 | | Cr | 20.0 | 23.0 | Nb+Ta | 3.15 | 4.15 | | Fe | - | 5.0 | Ti | - | 0.40 | | Mn | - | 0.50 | Al | - | 0.40 | | C | - | 0.10 | Si | - | 0.50 | | P | - | 0.015 | S | - | 0.015 | --- #### **Physical Properties** | Property | Value (Metric) | Value (Imperial) | |----------|----------------|------------------| | Density | 8.44 g/cm³ | 0.305 lb/in³ | | Melting Range | 1290-1350°C | 2350-2460°F | | Thermal Conductivity (21°C) | 8.7 W/m·K | 6.0 Btu·in/hr·ft²·°F | | Mean Coefficient of Thermal Expansion (21-316°C) | 12.8 μm/m·K | 7.1 x 10⁻⁶ in/in/°F | | Modulus of Elasticity | 207 GPa | 30.0 x 10⁶ psi | | Electrical Resistivity | 1.25 μΩ·m | 49.0 μΩ·in | --- #### **Mechanical Properties (Typical)** | Thickness Range | Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |-----------------|-----------|------------------------|----------------------|----------------| | 0.025-0.15 mm | Annealed | 760-895 | 345-485 | 35-50 | | 0.15-0.50 mm | Annealed | 795-930 | 380-515 | 30-45 | | 0.50-1.0 mm | Annealed | 825-965 | 415-550 | 25-40 | --- #### **International Specifications** **ASTM Standards:** - B443 - Plate, Sheet, and Strip (including foil) - B906 - General Specification for Nickel Alloy Strip **Aerospace Standards:** - AMS 5599 - Sheet, Strip, and Plate - AMS 5598 - Foil and Thin Strip **International Equivalents:** - UNS: N06625 - EN: 2.4856 / NiCr22Mo9Nb - DIN: 2.4856 - JIS: NCF 625 --- #### **Product Specifications** **Foil Stock:** - Thickness: 0.0127 mm (0.0005") to 0.15 mm (0.006") - Width: Up to 600 mm (24") - Surface Finish: Bright annealed, Matte, Polished - Temper: Annealed, 1/4 Hard, 1/2 Hard, Full Hard **Shim Stock:** - Thickness: 0.025 mm (0.001") to 1.0 mm (0.040") - Standard thickness increments available - Custom shapes and pre-cut shims - Continuous coil or sheet form --- #### **Key Characteristics** - **Ultra-Thin Capability**: Maintains integrity and properties in extremely thin sections - **Excellent Spring Properties**: Suitable for precision spring applications - **Superior Surface Quality**: Controlled surface finish for critical applications - **Dimensional Stability**: Maintains precise dimensions under thermal cycling - **Corrosion Resistance**: Full alloy properties maintained in thin gauges - **Formability**: Excellent for stamping, bending, and forming operations --- #### **Typical Applications** **Aerospace & Defense:** - Gaskets and seals for jet engines - Thermal protection systems - Thin-wall instrumentation components - Vibration dampening shims - Heat shield layers **Electronics & Semiconductor:** - Lead frames and connectors - Battery component foils - Fuel cell separators - Thin-film deposition substrates - EMI/RFI shielding **Industrial Equipment:** - High-temperature gaskets - Precision shims for alignment - High-performance seals - Thermal management foils - High-temperature brazing foils **Medical Devices:** - Surgical instrument components - Implantable device layers - Diagnostic equipment shims - Medical spring elements **Research & Development:** - Experimental apparatus - High-temperature furnace liners - Cryogenic application foils - Test specimen preparation --- #### **Fabrication Notes** **Handling & Storage:** - Store in clean, dry environment - Handle with clean gloves to prevent contamination - Protect surface from scratches and damage **Forming & Blanking:** - Suitable for precision stamping - Excellent for deep drawing applications - Can be blanked to precise dimensions - Maintains edge quality in thin sections **Joining Methods:** - Resistance welding - Laser welding - Electron beam welding - Brazing with compatible filler metals **Heat Treatment:** - Solution anneal at 1700-1850°F (925-1010°C) - Rapid cooling required - Stress relief treatments available --- #### **Quality Assurance** - 100% dimensional verification - Surface quality inspection - Metallurgical testing per ASTM standards - Certification to customer specifications - Lot traceability maintained *Note: Inconel® is a registered trademark of Special Metals Corporation. Properties may vary depending on thickness, temper, 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 1765 gallon liquid totes Special package is available on request.