Alloy 201，Nickel 201 Strip，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 Strip (UNS N02201)** #### **1. Product Overview** **Nickel 201 Strip** (commercially known as **Alloy 201 Strip**) is a low-carbon version of commercially pure nickel supplied in thin, precision-rolled coiled form. Specifically engineered with a maximum carbon content of 0.02%, this strip material delivers superior performance in continuous service temperatures exceeding **315°C (600°F)**, preventing the grain-boundary carbide embrittlement that can occur with standard Nickel 200. Characterized by precise dimensional tolerances, exceptional surface quality, and consistent mechanical properties, Nickel 201 Strip is ideally suited for high-temperature electronic components, precision instrumentation, and applications requiring reliable performance in elevated temperature environments. The material maintains excellent formability and corrosion resistance while providing enhanced high-temperature stability. #### **2. Chemical Composition (% Weight)** | Element | Content (%) (ASTM B162) | Content (%) (Typical Strip) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.6 | | **Carbon (C)** | **0.02 max** | **0.006** | | **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** (20-100°C) | 13.3 µm/m·°C | 7.4 x 10⁻⁶ in/in·°F | | **Curie Temperature** | ~ 360 °C | ~ 680 °F | #### **4. Mechanical Properties** Properties vary with temper condition and thickness: **Annealed Temper (Soft):** * **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** * **Ultra-Thin Strip:** 0.025 mm to 0.10 mm (0.001" to 0.004") * **Standard Strip:** 0.10 mm to 1.0 mm (0.004" to 0.040") * **Heavy Strip:** 1.0 mm to 2.0 mm (0.040" to 0.080") #### **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 and Nickel Alloys | | **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** * **Precision Dimensional Control:** Maintains tight thickness tolerances of ±0.005mm for critical applications * **Superior High-Temperature Stability:** Excellent resistance to embrittlement at temperatures above 315°C (600°F) * **Exceptional Surface Quality:** Available in matte, bright, and special polished finishes * **Excellent Formability:** Can be deep drawn, stamped, and blanked into complex shapes * **Consistent Mechanical Properties:** Uniform properties across the entire coil length * **Good Weldability:** Suitable for resistance welding, laser welding, and micro-TIG techniques * **High Temperature Electrical Properties:** Maintains stable electrical characteristics at elevated temperatures #### **8. Product Applications** **High-Temperature Electronics:** * Lead frames for high-temperature semiconductors * High-temperature battery components * Electronic connectors for elevated temperature service * High-temperature circuit board substrates **Aerospace & Defense:** * High-temperature instrumentation components * Rocket engine sensor elements * Aircraft engine control system parts * High-temperature shielding applications **Electrical & Industrial:** * High-temperature resistance elements * Thermocouple compensation leads * High-temperature spring components * Electrical contacts for elevated temperature service **Specialized Applications:** * High-temperature brazing preforms * Nuclear instrumentation components * Medical device components for sterilization * High-temperature vacuum system components --- **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 1644 gallon liquid totes Special package is available on request.