Kovar 4J29 Precision Alloy Round Bar 15-200MM | ISO Certified

The 4J series precision alloys, specifically the Kovar 4J29 alloy, are nickel-iron based materials engineered to meet high-tech demands. These alloys are recognized for their extremely low coefficient of thermal expansion (CTE), ensuring exceptional dimensional stability over a broad temperature range. With superior strength and toughness, Kovar alloy can withstand mechanical stresses, making it ideal for applications in extreme environments. These unique characteristics make the Kovar 4J29 precision alloy round bar a top choice for industries requiring high precision and reliability.

In particular, Kovar alloy is widely used in critical industries such as electronics, aerospace, and optics. It plays a vital role in the electronics industry for glass-to-metal seals in devices like vacuum tubes and sensors. In aerospace, Kovar 4J29 is crucial for precision instruments that must operate in challenging conditions. Additionally, in the optical industry, this alloy helps maintain the alignment of optical system components under varying temperatures.

Key Features of Kovar 4J29 Alloy

• Low Coefficient of Thermal Expansion (CTE): The primary feature of Kovar alloy is its low CTE, which ensures stable dimensional integrity despite temperature fluctuations.

• High Strength and Toughness: Excellent mechanical properties that make it resistant to deformation under mechanical stress.

• Versatile Applications: Used extensively in aerospace, electronics, and optics for components requiring high thermal stability and precision.

• ISO Certified: Kovar 4J29 alloy is manufactured under strict quality controls to meet international standards, ensuring consistent performance.

Application Fields of Kovar 4J29 Alloy

The Kovar 4J29 precision alloy round bar is utilized in a variety of industries that require high thermal stability, dimensional precision, and durability:

1. Electronics Industry: Primarily used for glass-to-metal seals in components like vacuum tubes, sensors, and semiconductor devices. It ensures the integrity of seals, even under high temperatures and fluctuating conditions.

2. Aerospace Industry: The alloy is used for precision instruments in aerospace, where dimensional stability and high strength are critical for equipment that operates in extreme environments.

3. Optical Industry: In optical systems, Kovar alloy is used to manufacture components that must maintain precise alignment despite temperature changes, ensuring optimal performance and accuracy.

Manufacturing Process

The production of Kovar 4J29 alloy involves the following key processes:

1. Melting and Alloying: The base materials—nickel, iron, and cobalt—are carefully melted and mixed in precise proportions to create the 4J29 alloy with specific thermal and mechanical properties.

2. Forming and Shaping: The molten alloy is then cast into the desired shape, such as round bars, billets, or sheets. It is then processed further through forging and rolling to achieve the desired size and surface finish.

3. Heat Treatment: The alloy undergoes controlled heat treatment to optimize its mechanical properties, including strength, toughness, and thermal expansion.

4. Quality Control: Rigorous quality checks ensure that the alloy meets the specifications for CTE, strength, and other critical characteristics.

Advantages of Kovar 4J29 Precision Alloy

• Exceptional Dimensional Stability: Kovar 4J29 maintains its shape and size across a wide temperature range, making it ideal for environments with significant temperature fluctuations.

• High Resistance to Mechanical Stress: With its superior strength and toughness, the alloy can withstand harsh mechanical stresses without deformation.

• Adaptability Across Industries: Its versatility makes Kovar 4J29 suitable for use in high-precision applications across multiple industries, including electronics, aerospace, and optics.

• ISO Certified: Manufactured to international standards, ensuring consistent quality and reliability.

• ABOUT US
• About DLX ALLOY

• 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.

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• About Our factory

• 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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• Client Visits

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FAQ

What is your working time and contact information?

Our office hours are Monday to Saturday, 7:30 AM to 5:00 PM (Beijing Time, GMT+08:00). We observe public holidays from May 1st to 3rd, October 1st to 7th, and during Chinese New Year. Please feel free to email us during these holidays if you have any inquiries.

Do you provide free samples?

Yes, we can provide free samples of Kovar 4J29 alloy for testing purposes. However, buyers are responsible for covering the shipping costs.

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?

The typical lead time for samples is approximately 7 days after payment confirmation.