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4J50 Alloy Tube (50 Alloy / Fe-Ni Soft Magnetic Alloy Tube) High-Permeability Soft Magnetic Precision Tubing
| Place of Origin | CHINA |
|---|---|
| Brand Name | HUONA |
| Certification | SGS ISO9001 |
| Model Number | PIPE |
| Minimum Order Quantity | 10KG |
| Price | NEGOTATION |
| Packaging Details | CASE |
| Delivery Time | 30DAYS |
| Payment Terms | T/T |
| Supply Ability | 1000KG/WEEK |
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xProduct Details
| Material Grade | 4J50 / 50 Alloy | Material Type | Soft Magnetic Fe-Ni Alloy |
|---|---|---|---|
| Composition | Ni 48–51%, Fe Balance | Key Property | High Magnetic Permeability |
| Coercivity | Low | OD Range | 0.5–60 Mm |
| Wall Thickness | ≥ 0.5 Mm | Length | 10–6000 Mm |
| Manufacturing Method | Seamless / Welded | Customization | OD / ID / Wall Thickness / Length / Tolerance |
Product Description
Product Overview
4J50 alloy tube, also known as 50 Alloy or Fe-Ni 50% soft magnetic alloy, is a precision Fe-Ni alloy featuring high magnetic permeability, low coercivity, and stable magnetic performance.
It is widely used in magnetic shielding, transformers, inductive components, sensors, and electromagnetic devices requiring stable magnetic characteristics.
4J50 offers excellent processability, uniform structure, and good dimensional stability, making it ideal for precision magnetic and electronic applications.
Key Features
-
High Magnetic Permeability
Excellent initial and maximum permeability for magnetic applications. -
Low Coercivity
Ideal for transformer cores, inductive components, and shielding materials. -
Good Dimensional Stability
Stable mechanical and magnetic performance under varying temperatures. -
Excellent Processability
Suitable for drawing, machining, brazing, welding, and forming. -
Custom Dimensions Available
OD / ID / wall thickness / length made to order.
Technical Specifications
| Item | Value |
|---|---|
| Material | 4J50 (Fe-Ni Soft Magnetic Alloy, 50% Ni) |
| Equivalent Grade | 50 Alloy / ASTM A753 Type 1 |
| Ni Content | 48–51% |
| Magnetic Property | High permeability, low coercivity |
| Outer Diameter (OD) | 0.5–60 mm (custom available) |
| Wall Thickness | ≥ 0.5 mm |
| Inner Diameter (ID) | Custom |
| Length | 10–6000 mm (cut-to-length) |
| Surface Finish | Bright / Polished / Clean |
| Density | 8.2 g/cm³ |
| Electrical Resistivity | ~0.45 μΩ·m |
| Curie Temperature | ~500 °C |
| Hardness Condition | Annealed / Semi-hard / Hard |
| Tensile Strength | 450–650 MPa |
| Standards | GB/T 15009 |
Main Applications
| Industry | Typical Uses |
|---|---|
| Magnetic Components | Transformer parts, magnetic shields, inductive cores |
| Electronics & Sensors | Magnetic sleeves, housings, signal components |
| Aerospace & Military | Magnetic shielding, sensitive electronic modules |
| Instrumentation | Precision electromagnetic assemblies |
| Automotive Electronics | Magnetic control elements, sensor housings |
| High-Frequency Devices | Soft magnetic cores and shielding tubes |
Product Attributes(Alibaba Format)
| Attribute | Value |
|---|---|
| Material Grade | 4J50 / 50 Alloy |
| Material Type | Soft Magnetic Fe-Ni Alloy |
| Composition | Ni 48–51%, Fe balance |
| Key Property | High Magnetic Permeability |
| Coercivity | Low |
| OD Range | 0.5–60 mm |
| Wall Thickness | ≥ 0.5 mm |
| Length | 10–6000 mm |
| Inner Diameter | Customizable |
| Surface Finish | Bright / Polished / Clean |
| Manufacturing Method | Seamless / Welded |
| Hardness | Annealed / Semi-hard / Hard |
| Tensile Strength | 450–650 MPa |
| Density | 8.2 g/cm³ |
| Color | Metallic Grey |
| Form | Straight Tube / Cut-to-Length / Coil |
| Application Field | Magnetic Components / Electronics / Aerospace |
| Customization | OD / ID / Wall Thickness / Length / Tolerance |
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