Kovar 1j85 Seamless Tube

Description of Kovar 1j85 Seamless Tube

Kovar 1j85 Seamless Tube is a special alloy pipe owing to its core components which include Iron, Nickel and Cobalt. Its splendid machining characteristics and unrivaled thermal expansion properties make it a core material for precision instruments, electronic packaging and optoelectronic equipment. This Kovar 1j85 Seamless Tube is vacuum melted and made through precision cold machining, which imparts a high surface finish, dimensional accuracy of up to a micron level, and makes it ideal for use in applications requiring high sealing and stability.

The linear expansion coefficient of Kovar 1j85 Seamless Tube offers a perfect match with other materials such as glass or ceramics. In the range of 20-400°C (approximately 4.6×10⁻⁶/℃), Kovar 1j85 Seamless Tube maintains a strong bond with the packaging material, even in extreme hot and cold shock environments, preventing thermal stress cracking or leakage, which increases device reliability.

Through the use of a cold rolling and cold drawing process, there are no weld imperfections on the inner and outer surfaces of the pipe, and its microstructure is homogeneous and refined. This construction enhances compressive strength (with a tensile strength>\=520MPa) and ensures that the airtightness test pass rate is not lower than 99.9%, making the structure ideal for vacuum electron tubes and lasers as well as other applications requiring a high cleanliness level.

For each lot of tubes, ultrasonic flaw detection and helium mass spectrometry leak detection are done with the impurity content controlled under 0.005%. They can have passivation treatment or metallization, like gold and nickel plating, for different packaging processes. The in-process control system from raw materials to the finished product provides full traceability and guarantees compliance with international standards.

From adapting to ergonomical designs for consumer electronics miniaturization to environmental adaptability for aerospace equipment, Kovar 1j85 Seamless Tubes protect precision electronics due to its precise and reliable manufacturing processes.

Features Of Kovar 1j85 Seamless Tube

1 The thermal expansion coefficient of Kovar 1j85 Seamless Tube is highly matched with glass/ceramics (about 4.6×10⁻⁶/℃ in the range of 20-400℃)

2 Kovar 1j85 Seamless Tube has micron-level processing accuracy, excellent air tightness, and tensile strength (≥520MPa)

3 Kovar 1j85 Seamless Tube has dimensional stability in a wide temperature range of -80℃ to 450℃.

Applications Of Kovar 1j85 Seamless Tube

This Kovar 1j85 Seamless Tube is widely used in the field of electronic packaging, such as metal sealed housings of vacuum tubes, lasers, and microwave devices, as well as precision scenarios such as aerospace sensors and transistor lead frames that require high-reliability thermal matching. Kovar 1j85 Seamless Tube can also meet special packaging process requirements through surface treatments such as gold plating/nickel plating.

Specifications Of Kovar 1j85 Seamless Tube

FAQ For Kovar 1j85 Seamless Tube

Are you a Kovar 1j85 Seamless Tubes factory or Kovar 1j85 Seamless Tubes manufacturer?
A: Yes, we are a Kovar 1j85 Seamless Tubes factory, but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method of Kovar 1j85 Seamless Tubes?
A: Generally, we send Kovar 1j85 Seamless Tubes by UPS, DHL or FedEx. Also, we can send by sea to a seaport or by air to the closest airport.

Why is your Kovar 1j85 Seamless Tubes so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.

Do you do spot quality inspection of Kovar 1j85 Seamless Tubes or full inspection of Kovar 1j85 Seamless Tubes?
A: 100% full inspection for sure. All unqualified Kovar 1j85 Seamless Tubes are discarded.

How do you ensure your lead time of Kovar 1j85 Seamless Tubes?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Kovar 1j85 Seamless Tubes?
A: Depends on the quantity of Kovar 1j85 Seamless Tubes; generally, no MOQ limit.

How to pay for Kovar 1j85 Seamless Tubes?
A: A bank transfer (T/T) will be acceptable.

What is the delivery time of Kovar 1j85 Seamless Tubes​​​​​​?
A: Around 7-20 days which depends on the quantity and production of Kovar 1j85 Seamless Tubes.

What kind of package of Kovar 1j85 Seamless Tubes?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the safety of Kovar 1j85 Seamless Tubes.

What is the lead time of Kovar 1j85 Seamless Tubes?
A: From the order placed to cargo receiving will take around 10-25 days.

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