Welcome to Jiangsu DLX alloy Co., Ltd.
Email:sales8@dlx-alloy.com Mobile/Whatsapp:+86 199 0611 9641
Specialized manufacturer of high temperature alloys, precision alloys and Incoloy,over 20 years.
Whatsapp:+86 199 0611 9641
Email:sales8@dlx-alloy.com
Add:NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu,China
Precision Alloy Wire
Product Details

The 3J21 Precision Alloy Wire is a highly versatile material with exceptional mechanical and physical properties. Manufactured with meticulous precision and stringent quality control, this alloy wire is known for its fine diameter and uniform structure, which contribute to its outstanding tensile strength and flexibility.
One of the key features of 3J21 alloy wire is its soft magnetic properties, making it ideal for a variety of electromagnetic applications. It exhibits excellent magnetic permeability, enabling efficient magnetic field conduction and concentration. This makes it highly suitable for use in components like transformers, inductors, and magnetic shielding.
The 3J21 alloy wire also demonstrates superior corrosion resistance, along with the ability to withstand high temperatures and wear, ensuring long-lasting reliability. This makes it an essential material for industries such as electronics, aerospace, and medical technologies. It is commonly used in delicate electrical connections, precision sensors, and high-strength filaments, enabling advanced technologies and ensuring consistent performance in complex systems.
| 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 |
| 8.1 | 80 | 11 | 144 | 800 | 1000 | 10 | 800 | >10⁷ | -60 to 200 | Extremely low temperature coefficient of elasticity | |
| 8.3 | 120 | 40 | 125 | 300 | 600 | 20 | 300 | >10⁷ | -40 to 150 | Elasticity remains constant with minimal temperature sensitivity | |
| 8.2 | 100 | 15 | 180 | 1100 | 1400 | 5 | 1100 | >10⁶ | -200 to 500 | Maintains high strength even at elevated temperatures |
Soft Magnetic Properties: High magnetic permeability for efficient magnetic field conduction.
Outstanding Tensile Strength: Ensures excellent mechanical performance.
Corrosion and Wear Resistance: Provides long-lasting durability in harsh environments.
High Flexibility: Ideal for use in precision applications that require intricate components.
Temperature Resistance: Reliable performance even under elevated temperatures.


The 3J21 Precision Alloy Wire is designed for a wide range of applications where its unique properties are crucial for high-performance systems:
Electronics Industry: Commonly used for manufacturing transformers, inductors, and electromagnetic shields, ensuring optimal performance in electrical systems.
Aerospace Industry: Employed in precision sensors and electrical connections in aerospace systems that demand high reliability and stability.
Medical Technology: Used in surgical implants and biomedical devices due to its non-reactive properties and reliability in medical applications.
Automotive and Industrial Applications: Suitable for use in high-strength filaments and electromagnetic components in motors, sensors, and actuators.
Energy Sector: Utilized in components for transformers, electric motors, and energy systems, contributing to the efficient operation of power grids.


At DLX, we offer the 3J21 Precision Alloy Wire in various sizes and grades to meet your specific application needs. Whether you require custom diameters, lengths, or other specifications, we provide flexible options for your unique requirements. Our OEM/ODM services ensure tailored solutions to suit your project's needs.
We offer comprehensive support for all our 3J21 Precision Alloy Wire products:
Product Consultation: Our team of experts is available to help you select the most suitable alloy wire for your application.
Customization Services: We offer the ability to customize the wire in various sizes, finishes, and grades to meet specific requirements.
Technical Assistance: From installation to long-term performance monitoring, we provide full support for the lifecycle of the product.
Quality Assurance: We conduct rigorous testing, including mechanical testing, chemical analysis, and non-destructive testing, to ensure superior quality.
Product Packaging:
Each 3J21 Precision Alloy Wire is carefully packaged to prevent damage during transportation. We ensure that the wire is securely wrapped in protective material and placed in sturdy packaging for safe shipping.
Shipping:
We offer free standard shipping for all 3J21 alloy wire orders within the continental United States. Orders are processed within 1-2 business days and shipped via UPS or FedEx, with typical delivery within 5-7 business days. Expedited shipping options are available for an additional fee.



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.



Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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What is the 3J21 Precision Alloy Wire?
The 3J21 Precision Alloy Wire is a high-performance alloy with exceptional soft magnetic properties. It offers excellent magnetic permeability, corrosion resistance, and tensile strength, making it ideal for use in electronics, aerospace, and medical applications.
What industries use the 3J21 alloy wire?
The 3J21 alloy wire is used in the electronics, aerospace, medical, automotive, and energy industries. It is particularly valued for its high magnetic permeability and reliability in demanding applications such as transformers, inductors, and precision sensors.
Can the 3J21 precision alloy wire be customized?
Yes, we offer custom sizes and specifications for the 3J21 precision alloy wire to meet the specific needs of your project. Whether you need specific diameters, lengths, or finishes, we can provide tailored solutions.
Where is the 3J21 Precision Alloy Wire manufactured?
The 3J21 alloy wire is manufactured in China, ensuring strict quality control and adherence to international standards.
What are the benefits of using the 3J21 Precision Alloy Wire?
The 3J21 alloy wire offers high magnetic permeability, corrosion resistance, tensile strength, and flexibility, making it suitable for a wide range of applications, including transformers, sensors, and electromagnetic components.
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