The Invar Kovar 4J29 Precision Alloy Round Bar is a high-performance nickel-iron-based alloy designed for demanding industrial applications that require superior dimensional stability and mechanical strength. Known for its exceptionally low coefficient of thermal expansion (CTE), Invar Kovar 4J29 ensures excellent performance in environments where temperature fluctuations are a concern. These alloys are especially valuable in industries that require precise alignment and durability, even under extreme conditions.

Key Features of Invar Kovar 4J29 Precision Alloy

• Low Coefficient of Thermal Expansion: Invar Kovar 4J29 boasts one of the lowest CTEs among metallic materials, making it ideal for applications requiring dimensional stability over a wide temperature range.

• High Strength and Toughness: The alloy provides excellent strength and mechanical toughness, enabling it to withstand significant mechanical stresses without failure.

• Superior Durability: Its robust properties make it highly durable, even in extreme thermal cycles and mechanical stress, ensuring long-term reliability in industrial applications.

• Customizable Size and Diameter: The alloy bars are available in customizable sizes, allowing you to choose the ideal diameter for your specific application.

• Excellent Weldability: Invar Kovar 4J29 is easy to weld, making it a suitable choice for complex manufacturing processes.

Applications of Invar Kovar 4J29 Precision Alloy

Due to its unique properties, the Invar Kovar 4J29 is widely used in various high-tech and quality-critical industries:

• Electronics Industry: Invar Kovar 4J29 is commonly used for glass-to-metal seals in vacuum tubes, sensors, and electronic components, where stable dimensions are critical for performance.

• Aerospace Industry: The alloy is used in aerospace applications, including precision instruments and components that require high dimensional stability at varying temperatures.

• Optical Industry: Invar Kovar 4J29 is ideal for optical system components, ensuring the precise alignment of elements despite temperature changes.

• Scientific Instruments: The alloy is used in scientific instrumentation that requires tight tolerances and stability under fluctuating temperature conditions.

• Automotive and Military: Invar Kovar is also employed in high-stress environments like automotive and military applications where material strength and dimensional accuracy are crucial.

Comparison Table: Kovar 4J29 vs. Alloy 42 ( 4J42 ) vs. 4J49 Fe-Ni-Cr

Packaging & Shipping

Packaging:
We ensure that each Invar Kovar 4J29 Precision Alloy round bar rod is packaged securely to prevent damage during transportation. The alloy bars are carefully wrapped and placed in durable containers that are sealed for extra protection. We also provide customized packaging based on your specific needs to ensure the safe delivery of your order.

Shipping:
We use reliable shipping partners to deliver your order promptly. Shipping costs are calculated based on the weight and destination of the shipment. After dispatch, you will receive a tracking number so you can monitor the status of your delivery.

• 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

• Building Stronger Partnerships

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• We support all kinds of testing:

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FAQ

What is your working time and how can I contact your company?
Our working hours are Monday to Saturday, from 7:30 AM to 5:00 PM (Beijing Time, GMT+08:00). We observe public holidays during May 1-3, October 1-7, and the Chinese New Year. Please feel free to email us during these periods, and we will get back to you as soon as possible.

Do you provide free samples?
Yes, we can provide a free sample of the Invar Kovar 4J29 Precision Alloy for testing. The buyer is responsible for covering all shipping costs.

What are your payment terms?
We accept a variety of payment methods, including T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.

What is the lead time for your products?
The typical lead time for sample orders is 7 days after payment confirmation. For bulk orders, the delivery time ranges from 10-30 days, depending on order volume.