1J50 Soft Magnetic Alloy Pipes For Magnetic Shielding And Inductors
1J50 Soft Magnetic Alloy Pipes for Magnetic Shielding and Inductors
1J50 Soft Magnetic Alloy Product Overview
1J50 is a high-performance nickel-iron soft magnetic alloy, predominantly composed of 49.0–51.0% nickel and the balance iron, with trace amounts of manganese, silicon, copper, carbon, phosphorus, and sulfur. This alloy is renowned for its exceptional magnetic properties, including high initial and maximum permeability, low coercivity, and high saturation magnetic induction. These characteristics make it ideal for applications requiring efficient magnetic performance in medium magnetic fields.
The alloy exhibits a Curie point of approximately 500°C, ensuring stable magnetic properties under varying thermal conditions. Its low electrical resistivity (0.45 μΩ·m) and high density (8.2 g/cm³) contribute to its suitability in applications where magnetic efficiency and structural integrity are paramount. Additionally, 1J50 demonstrates excellent machinability and formability, allowing for precise fabrication into various shapes and sizes, including pipes, rods, wires, and strips.
1J50 pipes are extensively used in the manufacturing of magnetic cores for transformers, relays, electromagnetic clutches, chokes, and magnetic shielding components. Their ability to operate effectively in medium magnetic fields makes them indispensable in industries such as electronics, aerospace, power generation, and petrochemicals.
1J50 Soft Magnetic Alloy Chemical Composition
| Element | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Ni (%) | Fe (%) |
|---|---|---|---|---|---|---|---|
| 1J50 | ≤0.03 | 0.3–0.6 | 0.15–0.3 | ≤0.02 | ≤0.02 | 49.0–51.0 | Balance |
1J50 Soft Magnetic Alloy Mechanical Properties
| Property | Value (Annealed) |
|---|---|
| Tensile Strength | ≥530 MPa |
| Yield Strength | ≥260 MPa |
| Elongation at Break | ≥35% |
| Hardness | ≤155 HV |
1J50 Soft Magnetic Alloy Physical Properties
| Property | Value |
|---|---|
| Density | 8.25 g/cm³ |
| Electrical Resistivity | 0.45 µΩ·m |
| Curie Point | 500°C |
| Saturation Magnetization | 1.5 T |
| Linear Expansion Coefficient (20–200°C) | 9.27 × 10⁻⁶/°C |
1J50 Soft Magnetic Alloy Standards
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ASTM F30
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DIN 2.4478
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GB/T 198-88
1J50 Soft Magnetic Alloy Applications
1J50 soft magnetic alloy pipes are integral to various applications, including:
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Transformers: Serving as magnetic cores in medium magnetic field transformers.
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Relays: Utilized in relay components requiring efficient magnetic flux.
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Electromagnetic Clutches: Providing reliable magnetic performance in clutch systems.
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Chokes: Employed in choke components for electrical circuits.
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Magnetic Shields: Used in shielding applications to control magnetic fields.
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Gyroscopes: Incorporated into gyroscopic devices for precise navigation.
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Automatic Synchronization Motors: Applied in motors requiring stable magnetic properties.
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Electronic Watch Micro Motors: Found in micro motors for timekeeping devices.
Frequently Asked Questions (FAQ)
Q1: What is the primary use of 1J50 soft magnetic alloy pipes?
1J50 pipes are primarily used in applications requiring high magnetic permeability and low coercivity, such as electromagnetic shielding, transformer cores, and chokes.
Q2: What are the key advantages of using 1J50 alloy?
The key advantages include high initial permeability, low coercivity, excellent machinability, and formability, making it suitable for various industrial applications.
Q3: How does the Curie point of 1J50 affect its performance?
The Curie point of 1J50 is 500°C, indicating the temperature above which the material loses its magnetic properties. This makes it suitable for applications operating below this temperature threshold.
Q4: Is 1J50 alloy available in different forms?
Yes, 1J50 alloy is available in various forms, including pipes, wires, rods, bars, strips, and sheets, catering to diverse industrial needs.
Q5: What standards govern the specifications of 1J50 alloy?
1J50 alloy specifications are governed by international standards such as ASTM F30 and DIN 2.4478, ensuring consistency and quality in its applications.
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