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

Our Precision Alloy 4J29 4J36 wire is a high-performance material known for its superior mechanical and physical properties. Manufactured to exacting standards with strict quality control, this precision alloy wire features a fine diameter and uniform structure, offering remarkable tensile strength and flexibility. The alloy wire is specifically engineered to withstand harsh environments, providing exceptional resistance to corrosion, heat, and wear. As a result, it is highly versatile and plays an essential role across industries such as electronics, aerospace, and medical technology.
Ideal for creating intricate electrical connections, precision sensors, and high-strength filaments, Precision Alloy 4J29 4J36 wire supports advanced technologies that require reliable performance in complex systems. It has become a crucial component in cutting-edge developments, ensuring safety, durability, and long-term operation across demanding applications.
The 4J29 and 4J36 precision alloys are made from a carefully balanced combination of metals to ensure optimal mechanical and physical performance in a wide range of applications. The typical chemical composition of these alloys includes:
Nickel (Ni): Base metal for the alloy, providing strength and stability.
Iron (Fe): Contributes to the alloy's structural properties and magnetic characteristics.
Chromium (Cr): Enhances corrosion resistance, particularly in high-temperature environments.
Manganese (Mn): Improves hardness and toughness.
Silicon (Si): Strengthens the alloy's resistance to oxidation and improves its overall performance.
This precise chemical makeup ensures that 4J29 4J36 wire meets the stringent performance requirements of high-tech industries.


Parameter | Invar 4J36 | 4J54 Expansion Alloy | Alloy 42 (4J42) |
|---|---|---|---|
Composition | 36% Ni, 64% Fe | 54% Ni, 46% Fe | 42% Ni, 58% Fe |
CTE (ppm/°C, 20-100°C) | ~1.2–1.5 | ~5.1 (20-400°C) | ~4.0–4.7 (20-300°C) |
Temperature Range | -50°C to 230°C | -40°C to 400°C | -40°C to 300°C |
Curie Temperature | ~279°C | ~430°C | ~370°C |
Yield Strength (MPa) | ~260–300 | ~350 | ~310 |
Tensile Strength (MPa) | ~450–550 | ~560 | ~520 |
Density (g/cm³) | 8.05 | 8.24 | 8.12 |
Applications | Aerospace tooling, composite molds | Precision molds, optical systems | Semiconductor lead frames, seals |
Corrosion Resistance | Moderate | Excellent | Good |
High Precision Manufacturing
The wire is produced with extremely tight tolerances, ensuring consistent diameter and mechanical properties. This precision is crucial in industries like electronics, where even the slightest deviation can impact performance. The precise control over wire dimensions makes it ideal for applications requiring accuracy and reliability.
Superior Mechanical Properties
Precision Alloy 4J29 4J36 wire offers exceptional tensile strength, fatigue resistance, and ductility. These properties ensure the wire can endure high stress, repeated bending, and challenging operating conditions without failure or deformation. The wire's durability guarantees long-lasting performance in critical applications.
Tailored Alloy Compositions
We offer the flexibility to customize the alloy composition according to specific application needs. This adaptability allows us to optimize the wire's electrical, magnetic, and thermal properties, making it suitable for diverse industries with distinct requirements.
High Surface Quality
The wire features a smooth and clean surface finish, reducing friction and enhancing performance in processes such as wire-drawing, winding, and electrical contacts. The high-quality surface also ensures that the wire can be effectively used in precision applications without the risk of corrosion or material degradation.
Electronics Industry
In the electronics industry, our precision alloy wire is used in the production of micro-springs, connectors, and sensors. Its high precision and excellent electrical conductivity make it an ideal choice for ensuring stable electrical connections and accurate sensing, both of which are essential for electronic devices and circuits.
Aerospace and Defense
The aerospace and defense industries rely on Precision Alloy 4J29 4J36 wire for critical components such as aircraft engine parts, missile guidance systems, and communication equipment. The wire's ability to withstand high temperatures, extreme stress, and harsh environments is essential for the safety and reliability of these applications, where precision and durability are non-negotiable.
Medical Devices
In medical technology, our precision alloy wire plays a key role in manufacturing surgical instruments, orthopedic implants, and cardiovascular devices. The wire’s biocompatibility, high strength, and corrosion resistance make it an excellent material for medical applications, ensuring patient safety and long-term reliability.
Automotive Industry
Precision Alloy 4J29 4J36 wire is also used in the automotive industry, specifically in fuel injection systems, sensors, and electrical wiring. Its durability and high performance contribute to the efficiency and reliability of vehicles, helping reduce maintenance costs and enhance overall vehicle performance.


Why Choose Precision Alloy 4J29 4J36 Wire?
Unmatched Precision and Consistency: The wire is manufactured with extremely tight tolerances, ensuring high accuracy in every application.
Superior Durability: With excellent mechanical properties, the wire can withstand harsh operating conditions, reducing the risk of failure and extending the lifespan of devices.
Versatility Across Industries: Whether it's electronics, aerospace, medical devices, or automotive applications, Precision Alloy 4J29 4J36 wire provides the necessary performance characteristics for each industry.
Customizable Solutions: We can tailor the alloy composition to meet specific requirements, optimizing its electrical, magnetic, and thermal properties for each unique use case.
We take great care in packaging and shipping Precision Alloy 4J29 4J36 wire to ensure that it arrives safely and in optimal condition. The wire is securely packed in protective materials to prevent damage during transit. We offer flexible shipping options to meet the needs of customers worldwide, ensuring timely delivery to any location.



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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FAQ
What is your working time and contact information?
Our working hours are Monday to Saturday, 7:30 AM to 5:00 PM (Beijing time, GMT+08:00). We observe public holidays during May 1-3, October 1-7, and Chinese New Year. Please email us if you have any inquiries during these holidays.
Do you provide free samples?
Yes, we can provide a free sample for testing purposes. The buyer is responsible for all shipping costs associated with the sample delivery.
What are your payment terms?
We accept various payment methods, including T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.
What is the lead time for orders?
The typical lead time for samples is 7 days after payment confirmation. For bulk orders, please contact us for an estimated delivery time.
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