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{"title":"4J42 Alloy High Permeability Magnetic Alloy For Precise Electromagnetic","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/5a\/36\/56fe90388b20c964ff0d71726916-200x200-1\/4j42_alloy_high_permeability_magnetic_alloy_for_precise_electromagnetic_applications.jpg","attrs":{"Brand Name":"Zhonggong Special Metallurgy","Model Number":"4J42 alloy","Place of Origin":"China","Composition":"Iron (Fe), Nickel (Ni), Cobalt (Co), Manganese (Mn)"}}
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{"title":"Low Coercivity Precision Alloy 1J85 Alloy For Magnetic Cores \/ Sensors \/","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/32\/88\/fb89be1b3b93b6fdd26ca7a17600-200x200-1\/low_coercivity_precision_alloy_1j85_alloy_for_magnetic_cores_2f_sensors_2f_actuators.jpg","attrs":{"Brand Name":"Zhonggong Special Metallurgy","Model Number":"1J85 Alloy","Place of Origin":"China","Minimum Order Quantity":"100KG"}}
{"title":"1J22 Soft Magnetic Precision Alloy Rod Hiperco 50 Optical Round Rod High","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d0\/af\/e0fb807494620e13b62fb6acf79b-200x200-1\/1j22_soft_magnetic_precision_alloy_rod_hiperco_50_optical_round_rod_high_magnetic_permeability.jpg","attrs":{"Brand Name":"Zhonggong Special Metallurgy","Model Number":"1j22 soft magnetic precision alloy","Place of Origin":"China","Minimum Order Quantity":"100KG"}}
{"title":"2J85 Alloy Nickel Iron Alloy 8.5g\/cm5 With Excellent Magnetic Properties \/","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/fd\/51\/3af64dd9d1c43425816f798908ed-200x200-1\/2j85_alloy_nickel_iron_alloy_8_5g_2fcm5_with_excellent_magnetic_properties_2f_thermal_stability.jpg","attrs":{"Brand Name":"2J85 Alloy","Model Number":"2J85 Alloy","Place of Origin":"China","Minimum Order Quantity":"100KG"}}
4J29 Alloy Is A Low-Expansion Nickel-Iron Alloy, Ideal For Precision Instruments
4J29 Alloy Product Description
Overview: 4J29 Alloy is a high-performance nickel-iron alloy with approximately 29% nickel content. It is engineered to provide excellent dimensional stability and minimal thermal expansion, making it highly suitable for precision and high-tech applications where accuracy is critical.
Composition:
Nickel (Ni): 29%
Iron (Fe): Balance
Trace Elements: May include small amounts of carbon, manganese, and silicon, depending on specific processing requirements.
Key Properties:
Coefficient of Thermal Expansion (CTE): Approximately 1.8 × 10⁻⁶ /°C (1.8 µm/m/°C), which ensures minimal expansion or contraction with temperature changes, preserving dimensional integrity.
Density: About 8.0 g/cm³, affecting the alloy's weight and handling characteristics.
Melting Point: Approximately 1420°C (2588°F), indicating the temperature at which the alloy transitions from solid to liquid.
Tensile Strength: Around 690 MPa (100 ksi), representing the maximum stress the material can endure while being stretched.
Yield Strength: Approximately 400 MPa (58 ksi), marking the stress at which plastic deformation begins.
Elongation: About 30%, indicating the percentage of strain the material can withstand before failing.
Modulus of Elasticity: Approximately 130 GPa (19 × 10⁶ psi), reflecting the alloy’s rigidity and stiffness.
Thermal Conductivity: Approximately 11 W/m·K, affecting how the alloy manages and transfers heat.
Electrical Resistivity: Around 50 µΩ·cm, which measures the resistance to electrical current.
Magnetic Permeability: Low, which minimizes magnetic interference and is beneficial for applications sensitive to magnetic fields.
Applications: 4J29 Alloy is widely used in high-precision applications, including:
Precision Instruments: Ideal for devices where accurate measurements are critical, such as scientific instruments and measurement tools.
Aerospace Components: Suitable for parts in aerospace systems that require stable dimensions under varying temperatures.
Electronics: Used in electronic devices where minimal thermal expansion is essential for performance and reliability.
High-Precision Machinery: Applied in manufacturing tools and molds that demand exact dimensional stability.
Processing and Fabrication:
Machinability: Generally good, allowing for effective machining with standard tools. Care should be taken to achieve desired surface finishes and tolerances.
Weldability: The alloy can be welded using appropriate techniques and materials, though it requires careful handling to prevent thermal stress and distortion.
Standards and Certifications: 4J29 Alloy is often produced according to industry standards such as ASTM and ISO to ensure consistent quality and performance in various applications.
Handling and Storage:
Storage: Should be kept in a dry, clean environment to prevent corrosion and contamination.
Safety Precautions: Standard safety practices should be followed during handling and machining to ensure safe working conditions.
Summary: 4J29 Alloy is a specialized nickel-iron alloy known for its low thermal expansion and high dimensional stability. Its properties make it a preferred material for precision instruments, aerospace components, and high-tech applications requiring exact performance and minimal thermal distortion.
