Nickel 271 Super Alloy,E FORU

### **Product Introduction: Nickel 271 Super Alloy** **Nickel 271** is a high-purity, low-carbon nickel superalloy specifically designed for applications requiring exceptional electrical and magnetic properties combined with excellent corrosion resistance. This alloy is characterized by its extremely low carbon content (typically 0.02% maximum), which minimizes graphitization and ensures superior performance in high-temperature electronic and electrical applications. With a nickel content of 99.0% minimum, Nickel 271 maintains the fundamental advantages of pure nickel while offering enhanced stability under thermal cycling conditions. The alloy's unique combination of high permeability, low hysteresis loss, and excellent corrosion resistance makes it particularly valuable for critical electronic components, magnetic shielding applications, and specialized chemical processing equipment where reliable long-term performance is essential. --- #### **1. Chemical Composition (Weight %)** The typical chemical composition of Nickel 271 is as follows: | Element | Content (%) | Element | Content (%) | |---------|-------------|---------|-------------| | **Nickel (Ni)** | 99.0 min | **Carbon (C)** | 0.02 max | | **Copper (Cu)** | 0.25 max | **Iron (Fe)** | 0.40 max | | **Manganese (Mn)** | 0.35 max | **Silicon (Si)** | 0.35 max | | **Sulfur (S)** | 0.01 max | **Magnesium (Mg)** | 0.10 max | | **Cobalt (Co)** | 0.10 max | **Other Elements** | 0.50 max | --- #### **2. Physical & Mechanical Properties** **Physical Properties:** | Property | Metric Units | Imperial Units | |----------|-----------------|------| | **Density** | 8.89 g/cm³ | 0.321 lb/in³ | | **Melting Point** | 1440 °C | 2624 °F | | **Thermal Conductivity** | 70.0 W/m·K | 485 Btu·in/hr·ft²·°F | | **Coefficient of Thermal Expansion** | 13.3 μm/m·°C | 7.4 μin/in·°F | | **Specific Heat** | 444 J/kg·K | 0.106 Btu/lb·°F | | **Electrical Resistivity** | 0.095 μΩ·m | 57.3 Ω·cir mil/ft | | **Magnetic Permeability** | 100-600 (dependent on field strength) | | | **Curie Temperature** | 360 °C | 680 °F | **Mechanical Properties (Annealed Condition):** | Property | Value | |----------|-----------------| | **Tensile Strength** | 380-480 MPa | 55-70 ksi | | **Yield Strength (0.2% Offset)** | 120-200 MPa | 17-29 ksi | | **Elongation** | 40-50% | | **Hardness (Rockwell B)** | 50-70 HRB | | **Modulus of Elasticity** | 180 GPa | 26.1 x 10⁶ psi | --- #### **3. Key Characteristics & Product Applications** **Key Characteristics:** - **Excellent Magnetic Properties**: High permeability with low hysteresis and eddy current losses - **Superior Corrosion Resistance**: Outstanding performance in alkaline environments and various corrosive media - **Low Carbon Content**: Minimizes graphitization and ensures long-term stability at elevated temperatures - **Good Thermal Conductivity**: Efficient heat dissipation in electronic applications - **Excellent Fabricability**: Good formability, weldability, and machinability characteristics - **High Purity**: Consistent performance with minimal impurity-related issues **Product Applications:** Nickel 271 serves critical functions in demanding applications across multiple industries: - **Electronics & Electrical Engineering**: - Transformer cores and magnetic amplifiers - Relay and contactor components - Magnetic shielding applications - High-frequency communication equipment - **Aerospace & Defense**: - Gyroscope components - Radar system waveguides - Aerospace electronic housing - Navigation system components - **Chemical Processing**: - Caustic evaporation equipment - Food processing machinery - Pharmaceutical manufacturing components - Chemical reaction vessels - **Power Generation**: - Turbine generator components - Power transmission equipment - Electrical bus bar systems - High-voltage switchgear --- #### **4. International Standards & Specifications** Nickel 271 complies with the following international standards: **Primary Specifications:** - **ASTM B160**: Nickel Rod and Bar - **ASTM B161**: Nickel Seamless Pipe and Tube - **ASTM B162**: Nickel Plate, Sheet, and Strip - **UNS N02201**: Unified Numbering System **International Equivalents:** - **EN**: NW 2201 (European designation) - **DIN**: 2.4061 - **JIS**: NCP 02 - **ISO**: NW 2201 - **AMS**: 5554 (Aerospace Material Specification) --- #### **Summary of Key Advantages** - **Optimized Magnetic Performance**: Superior magnetic properties for electronic applications - **Enhanced Thermal Stability**: Low carbon content prevents graphitization at elevated temperatures - **Excellent Corrosion Resistance**: Reliable performance in diverse corrosive environments - **Superior Electrical Properties**: Low electrical resistance with high conductivity - **Proven Reliability**: Established track record in critical applications - **Comprehensive Standardization**: Meets all major international quality requirements **Technical Note**: Nickel 271 exhibits excellent weldability using gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) processes. The alloy work hardens rapidly during cold working operations, requiring intermediate annealing at 650-815°C (1200-1500°F) for severe deformations. For optimal magnetic properties, a final hydrogen anneal at 1100-1200°C (2010-2190°F) is recommended. The material demonstrates particular resistance to corrosion by caustic alkalis, making it suitable for applications involving sodium hydroxide and potassium hydroxide solutions. Proper cleaning and handling procedures should be maintained to prevent surface contamination that could affect performance in sensitive electronic 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 3166 gallon liquid totes Special package is available on request.