52 Nickel-Iron Resistor Alloy,Nickel Iron Alloy,52Ni48Fe Alloy,E FORU

**Product Overview: 52 Nickel-Iron Resistor Alloy (52Ni48Fe Alloy)** 52 Nickel-Iron Resistor Alloy, also known as 52Ni48Fe Alloy, is a precision electrical resistance material specifically engineered for applications requiring stable and predictable electrical characteristics. With a composition of approximately 52% nickel and 48% iron, this alloy exhibits excellent electrical resistivity, low temperature coefficient of resistance, and minimal thermal EMF against copper, making it ideal for precision resistors, electrical instruments, and measurement devices. --- ### **Key Characteristics & Advantages** - **Controlled Temperature Coefficient**: Low TCR ensures stable resistance over temperature variations - **High Electrical Resistivity**: Provides optimal resistance characteristics for compact component design - **Low Thermal EMF**: Minimal thermal electromotive force against copper reduces measurement errors - **Excellent Long-Term Stability**: Maintains electrical properties over extended service life - **Good Mechanical Workability**: Can be drawn into fine wires and rolled into thin strips --- ### **Chemical Composition (Typical Weight %)** | Element | Content Range (%) | Function Description | |------------------|-------------------|-----------------------| | **Nickel (Ni)** | 51.0–53.0 | Primary element controlling electrical and thermal properties | | **Iron (Fe)** | Balance | Base element providing structural integrity | | **Manganese (Mn)**| 0.5–1.5 | Deoxidizer and sulfur control | | **Silicon (Si)** | 0.1–0.5 | Improves oxidation resistance | | **Carbon (C)** | ≤0.05 | Minimized to ensure stable electrical properties | | **Other Elements**| ≤0.3 | Controlled impurities | --- ### **Physical Properties** | Property | Typical Value | Test Conditions | |---------------------------------|------------------------|--------------------------| | **Density** | 8.25 g/cm³ | At room temperature | | **Melting Point** | ~1420°C | Approximate | | **Thermal Expansion Coefficient**| 9.5 × 10⁻⁶/°C | 20–100°C range | | **Thermal Conductivity** | 19.5 W/m·K | At 20°C | | **Electrical Resistivity** | 0.45 μΩ·m | At 20°C | | **Curie Temperature** | ~460°C | Magnetic transition point | --- ### **Electrical & Mechanical Properties** | Property | Typical Value | Test Conditions | |------------------------|----------------------|----------------------------| | **Temperature Coefficient (TCR)** | ±20 ppm/°C | 20–60°C range | | **Thermal EMF vs Copper** | <2 μV/°C | 0–100°C range | | **Tensile Strength** | 550–750 MPa | Annealed wire | | **Elongation** | 15–25% | In 100 mm | | **Hardness** | 150–200 HV | Annealed condition | --- ### **International Standards & Specifications** 52Ni48Fe Alloy complies with the following international standards: - **IEC 60195**: Standard for nickel-chromium and nickel-aluminum alloys for resistors - **ASTM F167**: Standard for nickel-iron resistance alloys - **MIL-P-47173**: Military specification for precision resistance alloys - **DIN 17471**: German standard for resistance alloys - **GB/T 1235**: Chinese standard for precision resistance alloys --- ### **Applications** 1. **Precision Electronics**: - Precision wire-wound resistors - Instrumentation and measurement devices - Bridge circuit components - Calibration standards 2. **Electrical Instruments**: - Shunt resistors for current measurement - Voltage divider networks - Electrical test and measurement equipment - Laboratory standards 3. **Automotive & Aerospace**: - Sensor components - Control system resistors - Aviation instrumentation - Engine management systems 4. **Telecommunications**: - Attenuators and terminations - RF and microwave components - Network analysis equipment --- ### **Available Forms** - **Fine Wire**: 0.01 mm to 2.0 mm diameter for precision resistors - **Strip & Foil**: 0.05 mm to 1.0 mm thickness for planar resistors - **Ribbon**: Various widths for special applications - **Pre-formed Elements**: Custom shapes for specific applications --- **Disclaimer**: *The information provided is for technical reference only. Actual performance may vary depending on manufacturing processes, heat treatment, and specific application conditions. Users should verify suitability through testing and adhere to relevant industry standards and safety guidelines. Consult with materials engineers for critical precision 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 3102 gallon liquid totes Special package is available on request.