Kovar® material is a metal alloy made from a blend of iron, nickel, and cobalt. Known for its controlled thermal expansion properties, Kovar maintains its structural integrity and forms reliable seals and connections with glass and ceramic materials. Often used for hermetic seals, Kovar components are excellent for use in high-performance applications in aerospace, electronics, and semiconductor industries.

At Hudson Technologies, we perform precision Kovar metal stamping to create custom components for use in a wide array of industries. Contact us for more information and to begin your order today.

What is Kovar Material?

Kovar’s primary element is iron, with the addition of nickel and cobalt. This makes Kovar a reliable material in high-temperature applications. Additionally, Kovar components can expand and contract in a similar manner to glass, without compromising their structural integrity. One of the most popular applications of Kovar metal is to create hermetic seals in glass-to-metal or ceramic-to-metal applications.

Though Kovar is more expensive than standard metals like aluminum or steel, its stability and durability for creating seals and strong components make it an excellent solution for demanding applications.

Kovar Metal Specifications

The standard composition of Kovar includes 53% iron, 29% nickel, 17% cobalt, and 1% additional elements. Additional specifications include:

Density: 8.36 g/cm³
Electrical resistivity: 490 microhm-mm
Hardness: 68
Melting point: 2640°F (1450°C)
Tensile strength: 517 MPa (75,000 psi)
Thermal conductivity: 17.3 W/m-K

Applications of Stamped Kovar Metal Components

Kovar is versatile and can be used for a large range of industrial applications. Common uses for stamped Kovar metal components include but are not limited to:

Hermetic seals
Laser tubes
X-ray tubes
Circuit casings
Scientific devices and instruments
Integrated and discrete circuits

Industries

Several industries use metal-stamped Kovar components for various applications, including:

Aerospace
Electronics
Scientific
Semiconductor
Solar/Energy

Superior Metal Stamping Services for Kovar Metal by Hudson Technologies

As a specialty alloy, Kovar exhibits enhanced qualities compared to other metals. However, this makes Kovar a more challenging material to stamp. Kovar components demand precise, tight tolerances and careful forming through specialized processes.

At Hudson Technologies, we have decades of experience creating standard and custom stamped Kovar components. By understanding the challenges of stamping specialty metals, we ensure we deliver precision-stamped parts with consistent quality and repeatability for any order.

Choose Hudson Technologies for Kovar Alloy Stamping

Hudson Technologies has over 80 years of experience providing custom metal stamping services and solutions to clients in any industry. Our 115,000 sq. ft. manufacturing facility is one of the largest in the nation, housing our proven equipment and skilled team of industry experts. We hold a variety of qualifications and certifications, including ASD9100 certification and ITAR Registration, reflecting our commitment to quality and performance. Get the custom components you need in materials that work with your operations from Hudson Technologies.

Call 866-241-4448 or contact us today with any questions or for more information. Request a quote to get started on your order!

Kovar Alloy