Alloy 201，Nickel 201 Foil，Shim，UNS N02201，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA11，American Specs:ASTM B162 ASTM B163 ASTM B725 ASTM B730 AMS 5553 Sheet and Strip，German Specs:WS 2.4061 WS 2.4068

### **Technical Datasheet: Nickel 201 Foil & Shim Stock (UNS N02201)** #### **1. Product Overview** **Nickel 201 Foil and Shim Stock** represent the thin-gauge forms of low-carbon commercially pure nickel, specifically engineered for high-temperature applications where standard Nickel 200 would be susceptible to embrittlement. With a maximum carbon content of 0.02%, these products maintain exceptional structural integrity in continuous service temperatures exceeding **315°C (600°F)**. **Foil** is typically supplied in thicknesses from 0.001" to 0.005" (0.025 mm to 0.127 mm), while **Shim Stock** generally ranges from 0.006" to 0.030" (0.15 mm to 0.76 mm). These products combine the excellent corrosion resistance of nickel with superior high-temperature stability, making them ideal for precision applications in elevated temperature environments. #### **2. Chemical Composition (% Weight)** Consistent with ASTM B162 specifications for low-carbon nickel products. | Element | Content (%) (ASTM B162) | Content (%) (Typical Foil/Shim) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.6 | | **Carbon (C)** | **0.02 max** | **0.008** | | **Manganese (Mn)** | 0.35 max | 0.15 | | **Iron (Fe)** | 0.40 max | 0.12 | | **Copper (Cu)** | 0.25 max | 0.08 | | **Silicon (Si)** | 0.35 max | 0.10 | | **Sulfur (S)** | 0.01 max | 0.002 | #### **3. Physical Properties** | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Density** | 8.89 g/cm³ | 0.321 lb/in³ | | **Melting Point** | 1435-1445 °C | 2615-2633 °F | | **Thermal Conductivity** (at 25°C) | 70 W/m·K | 485 BTU·in/hr·ft²·°F | | **Electrical Resistivity** | 0.095 µΩ·m | 36.5 µΩ·in | | **Modulus of Elasticity** | 186 GPa | 27 x 10⁶ psi | | **Thermal Expansion Coefficient** | 13.3 µm/m·°C | 7.4 x 10⁻⁶ in/in·°F | #### **4. Mechanical Properties** Properties vary significantly with temper and thickness: **Annealed (Soft) Temper:** * **Tensile Strength:** 345 - 450 MPa (50 - 65 ksi) * **Yield Strength (0.2% Offset):** 105 - 170 MPa (15 - 25 ksi) * **Elongation:** 45 - 60% **Hard Temper:** * **Tensile Strength:** 620 - 760 MPa (90 - 110 ksi) * **Yield Strength (0.2% Offset):** 550 - 690 MPa (80 - 100 ksi) * **Elongation:** 2 - 15% #### **5. Standard Thickness Ranges** **Foil:** * **Metric:** 0.025 mm to 0.127 mm * **Imperial:** 0.001" to 0.005" **Shim Stock:** * **Metric:** 0.15 mm to 0.76 mm * **Imperial:** 0.006" to 0.030" #### **6. International Standards** | Standard Organization | Standard Number | Title / Scope | | :--- | :--- | :--- | | **ASTM International** | **ASTM B162** | Nickel Plate, Sheet, and Strip | | **ASTM International** | **ASTM B906** | General Requirements for Flat-Rolled Nickel | | **ASME** | **SB-162** | Nickel Plate, Sheet, and Strip | | **SAE Aerospace** | **AMS 5556** | Sheet, Strip, and Plate | | **UNS** | **N02201** | Unified Numbering System | | **EN (Europe)** | **EN 10095** | Ni 99.2 (2.4066) | #### **7. Key Characteristics & Advantages** * **Superior High-Temperature Stability:** Excellent resistance to embrittlement at temperatures above 315°C (600°F) * **Precision Thickness Control:** Maintains tight thickness tolerances for critical high-temperature applications * **Excellent Formability:** Can be easily cut, stamped, and formed into complex shapes without cracking * **Exceptional Surface Quality:** Available with various surface finishes including matte, bright, and polished * **Good Weldability:** Can be welded using resistance welding and laser welding techniques * **High Temperature Electrical Properties:** Maintains stable electrical characteristics at elevated temperatures #### **8. Temperature Capability** * **Maximum Continuous Service:** **600°C (1112°F)** * **Intermittent Service:** Up to 815°C (1500°F) for short durations * **Minimum Service Temperature:** -196°C (-321°F) #### **9. Product Applications** **High-Temperature Electronics:** * Lead frames for high-temperature semiconductors * High-temperature battery components and contacts * Electronic shielding for elevated temperature environments * High-temperature circuit board substrates **Aerospace & Defense:** * High-temperature gaskets and seals * Shimming components for elevated temperature applications * Thermal management materials in high-temperature systems * Rocket engine instrumentation components **Industrial Applications:** * High-temperature furnace gaskets * Precision shims for high-temperature equipment alignment * High-temperature brazing preforms * Thermal spray masking for elevated temperature processes **Specialized Applications:** * High-temperature vacuum system components * Nuclear instrumentation foils * Medical device components requiring repeated sterilization * High-temperature sensor elements --- **Disclaimer:** The information provided is for technical reference. Actual properties may vary based on manufacturing process, thickness, temper, and heat treatment. Users should conduct appropriate testing to verify suitability for specific high-temperature applications. Consult with materials engineers for critical applications involving elevated temperature service.

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 1648 gallon liquid totes Special package is available on request.