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3J9/FeNi50/3J01/1J33/4J29/4J32/4J33/4J45/Invar36
DLX
Bright
ISO9001
5kg
5-20 Days
Industrial Magnet
Nickel Base Alloy
Product Description
3J9 high temperature soft magnetic alloy wire combines advanced metallurgical engineering with precision manufacturing to deliver reliable magnetic performance under elevated temperatures. As a specialized precision alloy, it maintains high permeability and low core losses even in harsh conditions, outperforming standard soft magnetic materials in thermal stability and mechanical strength. Available in various diameters as round or flat wire, it meets stringent requirements for aerospace, electronics, and industrial applications.
High Magnetic Permeability: Superior initial and maximum permeability for efficient magnetic flux conduction.
High Temperature Resistance: Maintains excellent soft magnetic properties at elevated temperatures, ideal for harsh environments.
Precision Engineering: Tight tolerances and consistent composition for reliable performance in sensitive applications.
Low Coercivity and Core Losses: Minimizes hysteresis and eddy current losses for energy efficiency.
Excellent Mechanical Properties: Good strength, corrosion resistance, and formability for wire drawing and component fabrication.
Thermal Stability: Low thermal expansion and stable magnetic characteristics across wide temperature ranges.
Specification
| Size Range | |
| Shape | Size |
| Wire | 0.5-7.5 |
| Rod/bar | 8.0-200 |
| Strip | (0.5-2.5)*(5-180) |
| Tube | custom made |
| Plate | custom made |
| 3J9 Soft Magnetic Alloy of chemical composition | |||||||||
| Item | 1J33 | 3J01 | 3J9 | 4J29 | 4J32 | 4J33 | 4J45 | FeNi50 | Invar36 |
| C | ≤0.05 | ≤0.05 | 0.22-0.26 | ≤0.03 | ≤0.05 | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.1 |
| Mn | ≤0.05 | ≤1.00 | 1.80-2.20 | ≤0.5 | 0.2-0.6 | ≤0.5 | ≤0.8 | ≤0.8 | ≤0.5 |
| Fe | Rest | ||||||||
| P | ≤0.020 | ≤0.020 | ≤0.03 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.006 |
| S | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.04 |
| Si | 0.30-0.6 | ≤0.80 | 1.30-1.70 | ≤0.3 | ≤0.2 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.35 |
| Ni | 32.8-33.8 | 34.5-36.5 | 9.0-10.5 | 28.5-29.5 | 31.5-33 | 28.5-29.5 | 44.5-45.5 | 49.5-50.5 | 35-38 |
| Al | 1.0-2.0 | 1.00-1.80 | -- | -- | -- | -- | ≤0.1 | ≤0.1 | -- |
| Co | -- | -- | -- | 16.8-17.8 | 3.2-4.2 | 16.8-17.8 | -- | -- | -- |
| Ti | -- | 2.70-3.20 | -- | -- | -- | -- | -- | -- | -- |
| Cu | -- | -- | -- | -- | ≤0.2 | 0.4-0.8 | ≤0.2 | -- | -- |
| Cr | -- | 11.5-13.0 | 19.0-20.5 | ≤0.2 | -- | ≤0.2 | -- | -- | -- |
| Mo | -- | -- | 1.60-1.85 | ≤0.2 | -- | ≤0.2 | -- | -- | -- |
Our Advantage
Aerospace and Aviation: Sensors, actuators, and electromagnetic components in high-temperature environments.
Electronics and Electrical Engineering: Transformers, inductors, relay cores, chokes, and magnetic shields.
Automotive: Precision sensors, solenoids, and electric vehicle components requiring thermal stability.
Industrial Instrumentation: High-precision measurement devices, control systems, and magnetic amplifiers.
Energy and Power Systems: High-frequency transformers and components in demanding power electronics.
Medical and Scientific Equipment: Reliable magnetic performance in specialized instruments.
DLX Advantage
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.
1.Market Leader - Top 5 in China's nonferrous metal industry
2.Flexible products - Thousands of product specifications,Meet multiple needs of buyers
3.Low MOQ - Can customize samples
4.Short production lead time，fast delivery of whole cabinet
5.Professional inspection equipment - Before delivery, we will use spectrometers, tensile testers and other professional equipment to conduct a comprehensive inspection of the products to ensure that the goods are qualified for acceptance
6.Professional business team - Quickly responds to customer inquiries,24-hour professional quotation online The salesperson will follow the customer's requirements for the use of the product,Professionally recommend more appropriate performance and price products to customers
7.Intact packaging - Packaging according to customer needs.You can customize wooden boxes to ensure that the goods arrive at the destination in good condition
8.Various payment methods - Facilitate customer payment
9.Get good reviews from customers - Old customers have long-term cooperation,The longest is more than 7 years
10.Received various awards - Google is very recognized by us,They give us awards every year
FAQ
A: 3J9 is a precision soft magnetic alloy wire valued for its high permeability and high-temperature stability. It is commonly used in sensors, transformers, relays, and other electromagnetic devices operating in extreme conditions.
A: Yes. It is specifically engineered for high-temperature applications while retaining excellent soft magnetic properties such as high permeability and low losses.
A: We offer a wide range of diameters (typically from fine wires to larger gauges). Contact us for custom sizes and specifications.
A: Absolutely. Its high permeability makes it an excellent choice for magnetic shielding and flux concentration applications.
A: 3J9 offers a balanced combination of magnetic performance, mechanical strength, and high-temperature capability, making it preferable for applications where both elasticity/strength and magnetism are required.
A: Yes, full material test reports, chemical composition analysis, and magnetic property data are available upon request.
