Alloy 205，Nickel 205 Strip，UNS N02205，EFORU

British Specs:，American Specs:AMS 5555 Wire and Ribbon MIL-N-46025，German Specs:

### Technical Datasheet: Nickel 205 Strip (UNS N02205) #### 1. Product Overview **Nickel 205 Strip** (commercially known as **Alloy 205 Strip**) is a thin, precision-rolled product manufactured from commercially pure nickel with controlled magnesium addition (0.01-0.10%). Supplied in coiled form, this strip material offers enhanced oxidation resistance and improved high-temperature performance compared to standard Nickel 200/201 strips, while maintaining excellent corrosion resistance and electrical conductivity. Characterized by precise dimensional tolerances, exceptional surface quality, and consistent mechanical properties, Nickel 205 Strip is specifically designed for applications requiring reliable performance in oxidizing atmospheres at elevated temperatures. The material is particularly suitable for high-temperature electronic components, electrical contacts, and precision applications where both oxidation resistance and consistent quality are essential. #### 2. Chemical Composition (% Weight) | Element | Content (%) (ASTM B162) | Content (%) (Typical Strip) | | :--- | :--- | :--- | | **Nickel (Ni)** | 99.0 min | ≥ 99.0 | | **Magnesium (Mg)** | **0.01 - 0.10** | **0.03 - 0.06** | | **Carbon (C)** | 0.15 max | 0.08 | | **Manganese (Mn)** | 0.35 max | 0.18 | | **Iron (Fe)** | 0.40 max | 0.15 | | **Copper (Cu)** | 0.25 max | 0.10 | | **Silicon (Si)** | 0.35 max | 0.12 | | **Sulfur (S)** | 0.01 max | 0.003 | #### 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) | 69 W/m·K | 478 BTU·in/hr·ft²·°F | | **Electrical Resistivity** | 0.096 µΩ·m | 36.8 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:** 350 - 450 MPa (51 - 65 ksi) * **Yield Strength (0.2% Offset):** 110 - 180 MPa (16 - 26 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** | **N02205** | Unified Numbering System | #### 7. Key Characteristics & Advantages * **Precision Dimensional Control:** Maintains tight thickness tolerances of ±0.005mm for critical applications * **Enhanced Oxidation Resistance:** Superior protection against high-temperature oxidation up to 650°C (1200°F) * **Excellent Surface Quality:** Available in matte, bright, and special polished finishes * **Superior 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 Stability:** Maintains stable electrical characteristics at elevated temperatures #### 8. Temperature Capability * **Maximum Continuous Service:** **650°C (1200°F)** * **Intermittent Service:** Up to 870°C (1600°F) for short durations * **Optimal Performance Range:** 300-600°C (572-1112°F) * **Minimum Service Temperature:** -196°C (-321°F) #### 9. Product Applications **High-Temperature Electronics:** * Lead frames for high-temperature semiconductors * Electrical contacts and connectors * High-temperature battery components * Electronic shielding applications **Electrical Applications:** * Resistance welding tips and electrodes * High-temperature electrical contacts * Ceramic metal seals * Electrical spring components **Industrial Components:** * High-temperature gaskets and seals * Precision springs for elevated temperature service * Chemical processing equipment parts * High-temperature brazing preforms **Specialized Applications:** * Aerospace instrumentation components * High-temperature sensor elements * Nuclear instrumentation components * Medical device components requiring repeated sterilization --- **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 1657 gallon liquid totes Special package is available on request.