High Quality 3J21 Iron Nickel Precision Alloy Sheet for Industrial Use

The 3J21 iron-nickel Precision Alloy Sheet is widely recognized for its exceptional magnetic properties, including high magnetic permeability and low coercive force. As a trusted precision alloy plate manufacturer, we produce this alloy specifically for applications that require high precision in controlling magnetic fields and ensuring magnetic shielding effectiveness. The 3J21 alloy offers excellent stability under varying temperatures and mechanical stresses, making it highly suitable for demanding industries such as electronics, aerospace, and precision instrumentation.
The 3J21 series is a preferred material for high-performance components that require consistent magnetic properties and reliability in a range of operational environments. Manufactured by a professional precision alloy plate manufacturer with strict quality control, this 3J21 alloy contributes to the advancement of modern technologies and industrial applications, delivering reliable and high-quality solutions for your critical projects.
Key Features of 3J21 Iron Nickel Precision Alloy Sheet
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High Magnetic Permeability: The alloy demonstrates exceptional permeability, which makes it ideal for applications where efficient magnetic flux control is required.
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Low Coercive Force: Offers low coercivity, ensuring that the material can easily magnetize and demagnetize under external magnetic fields, providing stability and control.
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Thermal Stability: Performs reliably under varying temperature conditions, making it ideal for both high- and low-temperature environments.
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Mechanical Strength: Exhibits excellent mechanical properties, including strength and durability, even under mechanical stress.
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Precision Control: Enables precise control of magnetic fields, which is critical in advanced electronic and aerospace systems.
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Versatile Applications: Perfect for use in a wide range of industries, including electronics, aerospace, and precision instrumentation.


| Grades | Density (g/cm³) | Electrical Resistivity (10⁻⁶ Ω·cm) | Thermal Conductivity (W/m·K) | Modulus of Elasticity (GPa) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation at Break (%) | Elastic Limit (MPa) | Fatigue Life (cycles) | Working Temperature Range (°C) | Temperature Coefficient |
| 3J21 (High Elasticity) | 8.1 | 80 | 11 | 144 | 800 | 1000 | 10 | 800 | >10⁷ | -60 to 200 | Extremely low temperature coefficient of elasticity |
| QBe2 (Constant Elasticity) | 8.3 | 120 | 40 | 125 | 300 | 600 | 20 | 300 | >10⁷ | -40 to 150 | Elasticity remains constant with minimal temperature sensitivity |
| Ni36CrTi (High Strength) | 8.2 | 100 | 15 | 180 | 1100 | 1400 | 5 | 1100 | >10⁶ | -200 to 500 | Maintains high strength even at elevated temperatures |
Applications of 3J21 Iron Nickel Precision Alloy Sheet
The 3J21 alloy sheet is widely used in industries where precise control over magnetic fields and stable performance under harsh conditions are critical. Some common applications include:
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Magnetic Shielding: Used in devices that require protection from external magnetic interference, such as sensors and electronic components.
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Aerospace: Ideal for use in aerospace technologies, where materials must withstand extreme conditions while maintaining magnetic stability.
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Precision Instruments: Applied in instruments that require accurate magnetic properties, such as fluxgate magnetometers and other measurement tools.
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Electronics: Essential for components like inductors, transformers, and magnetic heads in various electronic devices.
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Medical Devices: Used in precision medical instruments and equipment that require stable magnetic properties for accurate diagnostics and treatment.


Manufacturing Process of 3J21 Iron Nickel Precision Alloy Sheet
The production process for the 3J21 alloy sheet involves several stages to ensure optimal material properties and high-quality performance:
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Melting: High-purity raw materials, including iron and nickel, are melted using advanced techniques in electric arc or induction furnaces to ensure precise chemical composition.
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Casting: The molten alloy is cast into ingots or billets, followed by homogenization heat treatment to eliminate segregation and ensure uniformity.
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Hot Rolling: The ingots are hot-rolled at high temperatures to reduce thickness and achieve the desired dimensions while refining the alloy's microstructure.
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Annealing: After rolling, the alloy is annealed to relieve internal stresses, improve ductility, and stabilize the material for further machining.
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Finishing: The final step involves cutting the alloy sheet to specific sizes and performing any necessary surface treatments, such as grinding or polishing, to enhance durability and corrosion resistance.
Advantages of 3J21 Iron Nickel Precision Alloy Sheet
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Outstanding Magnetic Properties: High permeability and low coercive force make the 3J21 alloy sheet ideal for magnetic shielding and precise field control.
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Exceptional Stability: The alloy performs well under varying temperature and mechanical stress, ensuring reliable operation in demanding environments.
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Durability: It has excellent mechanical strength and can withstand long-term use in high-performance applications.
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Customizable Forms: Available in various forms and thicknesses, the 3J21 sheet can be tailored to meet specific customer needs and industrial requirements.
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Reliable Quality: Manufactured to stringent industry standards, the 3J21 alloy sheet offers consistent quality and dependable performance.



FAQ
Q: What is your working time and how can I contact you?
A: Our working hours are Monday to Saturday, from 7: 30 AM to 5: 00 PM (Beijing time, GMT+08: 00). For inquiries during holidays, please email us. We observe public holidays from May 1st-3rd, October 1st-7th, and Chinese New Year.
Q: Do you provide free samples?
A: Yes, we provide free samples for testing. However, the buyer is responsible for covering the shipping costs.
Q: What are your payment terms?
A: We accept T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.
Q: What is the lead time for orders?
A: The sample lead time is typically 7 days after payment confirmation. For regular orders, the lead time is 10-30 days, depending on the quantity ordered.
Contact : alloy dlx, +8613275227558
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This page is about importers and exporters of High Quality 3J21 Iron Nickel Precision Alloy Sheet for Industrial Use Search in a category : B2B Services Search in a category : nickel, precision, quality, 3j21, iron, high, alloy |
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