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 Rod
Product Details

The 4J32 Precision Alloy Bar is a high-performance material specifically designed for applications that require exceptional strength, high thermal conductivity, and superior resistance to wear and corrosion. With a thermal conductivity of 11.5 W/m·K and a tensile strength of 760 MPa, this alloy is particularly well-suited for high-temperature environments where other materials might fail.
The 4J32 alloy bar is known for its outstanding mechanical properties, making it ideal for critical industrial applications. It offers excellent dimensional stability and can endure extreme conditions without compromising its integrity. This alloy is particularly useful in sectors that demand reliability, such as aerospace, medical devices, and marine engineering.
Thanks to its excellent thermal conductivity, the 4J32 alloy bar ensures efficient heat transfer, which is essential in high-performance systems. Additionally, the material’s remarkable resistance to corrosion and oxidation enhances its durability, making it a perfect solution for long-lasting, high-performance applications.
Parameter | 4J32 Super Invar | Standard Invar (36% Ni) | Kovar |
|---|---|---|---|
Composition | 64% Fe, 31% Ni, 5% Co | 64% Fe, 36% Ni | 54% Fe, 29% Ni, 17% Co |
CTE (ppm/°C, 20-100°C) | 0.35–0.63 | 1.2–1.5 | ~5.0 |
Temperature Range | -32°C to 100°C | -50°C to 230°C | -50°C to 400°C |
Curie Temperature | 220°C | 279°C | ~435°C |
Yield Strength (MPa) | ~276 | ~260–300 | ~345 |
Tensile Strength (MPa) | ~483 | ~450–550 | ~520 |
Density (g/cm³) | 8.15 | 8.05 | 8.36 |
Applications | Precision instruments, telescope parts | General precision, clocks, molds | Glass-to-metal seals, electronics |
Machinability | Good, requires slow speeds | Good, easier than Kovar | Moderate, challenging due to hardness |
High Thermal Conductivity: With a conductivity of 11.5 W/m·K, it excels in applications requiring efficient heat transfer.
Exceptional Tensile Strength: The 760 MPa tensile strength ensures that the alloy can withstand heavy mechanical stresses without failure.
Corrosion and Oxidation Resistance: Its resistance to corrosion and oxidation makes it suitable for harsh environments, including those exposed to high heat and aggressive chemicals.
Dimensional Stability: The alloy bar maintains its dimensional integrity across varying temperature conditions, ensuring reliability and performance in critical applications.
Customization Options: Available for OEM/ODM services, with tailored specifications to meet the unique requirements of each customer.


The 4J32 precision alloy bar is used across various industries where its unique properties deliver exceptional performance:
Aerospace Industry: In aerospace applications, 4J32 alloy is used in engine components, heat exchangers, and critical parts that require excellent thermal management and structural integrity under extreme temperature variations.
Medical Industry: Due to its biocompatibility and high strength, it is used in medical implants and surgical instruments where durability and resistance to oxidation are crucial.
Marine and Offshore: The alloy’s resistance to corrosion and oxidation makes it a reliable choice for marine engineering, including the manufacturing of parts for offshore platforms, ships, and submarines.
Oil & Gas: In the oil and gas industry, 4J32 alloy bars are used in downhole tools, valves, and piping systems, where strength and corrosion resistance are critical for safe and efficient operation in harsh environments.
Automotive: This alloy is also used in automotive parts exposed to high temperatures, offering both strength and thermal conductivity to improve vehicle performance in challenging conditions.


DLX offers customization services for the 4J32 precision alloy bar to meet specific application requirements. Our products can be tailored in terms of dimensions, surface finishes (bright or oxidized), and material compositions to suit the needs of our customers. Whether you need FeCrAl Alloy or Inconel 625 Material, we ensure high-quality products with precise tolerances and performance specifications.
DLX provides comprehensive support and services for our 4J32 precision alloy bars:
Product Consultation: Our experts help you select the right alloy bar for your specific application needs.
Design Assistance: We offer design and engineering support for your custom alloy requirements.
Technical Support: From installation to maintenance, our team ensures smooth operation throughout the lifecycle of the product.
Testing and Quality Assurance: We conduct chemical analysis, mechanical testing, and non-destructive testing to guarantee the alloy meets industry standards.
Training Programs: We offer training to ensure proper handling and usage of the 4J32 alloy bar, helping to maximize its performance.
Product Packaging:
Each 4J32 precision alloy bar is carefully packaged to prevent damage during transport. The bars are securely wrapped in protective materials and packed into sturdy boxes with additional padding.
Shipping:
We offer free standard shipping for all orders of 4J32 alloy bars within the continental United States. Orders are processed within 1-2 business days and shipped via UPS or FedEx, with delivery typically 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 4J32 Precision Alloy Bar?
The 4J32 precision alloy bar is a high-performance material known for its excellent thermal conductivity (11.5 W/m·K) and tensile strength (760 MPa). It is primarily used in industries requiring durability, corrosion resistance, and high-temperature stability.
What industries use the 4J32 alloy bar?
The 4J32 alloy bar is widely used in aerospace, medical, marine, oil and gas, and automotive industries, especially in applications where high strength and resistance to heat and corrosion are essential.
Is customization available for the 4J32 alloy bar?
Yes, DLX offers OEM/ODM services to customize the 4J32 precision alloy bar according to your specifications, including dimension, surface finish, and material composition.
Where is the 4J32 Precision Alloy Bar manufactured?
Our 4J32 alloy bars are made in China, ensuring high-quality manufacturing standards and precise tolerances.
What are the benefits of using the 4J32 alloy bar?
The 4J32 precision alloy bar offers excellent thermal conductivity, high tensile strength, and superior corrosion resistance, making it an ideal choice for a wide range of high-performance applications in extreme conditions.
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