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 and 3J22 alloy wires are high-performance materials that combine excellent mechanical and physical properties. Manufactured with precision and strict quality control, these wires offer outstanding tensile strength, flexibility, and resilience. They are designed to exhibit exceptional resistance to corrosion, heat, and wear, making them suitable for a wide range of demanding applications across industries such as electronics, aerospace, and medical fields. These alloy wires are ideal for creating delicate electrical connections, precision sensors, and high-strength filaments. Their ability to perform reliably in complex systems makes them essential in advancing modern technologies.
High Elasticity: The 3J21 and 3J22 wires have excellent elastic properties, making them ideal for applications requiring deformation resistance and spring-like performance.
Corrosion Resistance: These wires are highly resistant to corrosion, which is essential for reliability in harsh and corrosive environments.
Heat Resistance: The alloys maintain their mechanical properties even under high temperatures, making them ideal for applications involving thermal stress.
Good Fatigue Resistance: They offer superior resistance to mechanical fatigue, which helps ensure the longevity of components subjected to repeated stress or vibration.
Uniform Structure: The wires are crafted with a uniform structure, ensuring consistent performance and high-quality results in all applications.
High Strength: With excellent tensile strength, these alloy wires can withstand significant mechanical loads without failure, providing reliable performance under stress.


| 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 |
| Parameter | 3J22 High-Durability Strip | Standard Spring Steel | Stainless Steel (e.g., SUS301) |
|---|---|---|---|
| Yield Strength (MPa) | Up to 3,200 | 1,500–2,000 | 1,000–1,800 |
| Elastic Modulus (GPa) | ~205 | ~200 | ~193 |
| Corrosion Resistance | Excellent, ideal for harsh conditions | Moderate, needs coatings | Excellent, chromium-based |
| Temperature Range (°C) | -40 to +250 | -20 to +150 | -50 to +300 |
| Fatigue Resistance | Outstanding, millions of cycles | Good, but lower than 3J22 | Good, varies by alloy |
| Hysteresis | Low, minimal energy loss | Moderate | Moderate to high |
| Applications | Springs, actuators, harsh environments | General springs | Springs, electronics |
| Cost-Effectiveness | High, due to longevity | Moderate, lower initial cost | Higher, material-driven |
Electronics:
Used in the production of micro-springs, connectors, sensors, and switches where high precision and durability are essential.
Suitable for making delicate electrical contacts and precision components that must endure thermal cycling and mechanical stress.
Aerospace:
Ideal for aerospace applications such as sensor components, connectors, and circuit boards where resistance to heat and corrosion is crucial.
Used in high-performance actuators and other parts exposed to high-temperature conditions in aircraft.
Medical Devices:
Perfect for creating surgical instruments, orthopedic implants, and cardiovascular devices that require high strength and biocompatibility.
Often used in medical wire applications, such as catheters and implantable devices, thanks to its resistance to corrosion and wear.
Automotive:
Utilized in fuel injection systems, ignition systems, and sensors that need to function reliably under high temperatures and mechanical stress.
Used in electrical wiring and sensor technology for automotive applications, where durability is a must.


Advantages
Durability and Longevity: Due to the superior mechanical properties of the 3J21 and 3J22 alloy wires, components made from these materials exhibit excellent long-term durability, reducing the need for frequent replacements and maintenance.
Versatility: These wires can be used in a broad range of industries, from aerospace to medical technology, offering flexibility for various applications that require high performance.
Cost-Effective: Despite their high performance, these alloys are cost-effective for manufacturers, providing a good balance between quality and price, especially in precision applications.
Enhanced Reliability: The wires' resistance to heat, corrosion, and mechanical wear makes them a reliable choice for mission-critical applications, ensuring safety and functionality in extreme environments.
Easy Fabrication: These alloys can be easily fabricated, welded, and processed, providing manufacturers with flexibility when creating custom components tailored to specific needs.
Excellent Performance under Stress: The alloy wires excel in environments where mechanical stress, fatigue, and repeated cycling are present, making them highly reliable in applications that require consistent performance under pressure.
Packaging:
The 3J21 and 3J22 alloy wires are carefully packaged in coils to prevent damage during transport. They are wrapped in anti-corrosion material to maintain their integrity.
Shipping:
We offer both air and sea shipping options. The shipping cost is borne by the buyer, and a tracking number will be provided for monitoring the shipment’s progress.



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.

Client Visits
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FAQ
What is your working time and contacting information?
Monday-Saturday: 7:30 AM - 17:00 PM (Beijing time, GMT+08:00). We have public holidays during May 1-3, October 1-7, and the Chinese New Year holiday. Please email us during holidays if you have any questions.
Do you provide free samples?
Yes, we offer free samples for testing, though the buyer is responsible for all shipping costs.
What is your payment terms?
We accept T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.
What is the lead time?
Usually, the sample lead time is 7 days after payment confirmation. For bulk orders, please inquire for more details.
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