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Nial Sheets and Plates stands out as a top-notch manufacturer and supplier of Kovar Foil right in Houston, USA. They cater to industries that require precision and reliability for high-performance applications. Kovar Foil is particularly renowned for its excellent thermal expansion compatibility with borosilicate glass and ceramics, making it a go-to choice in sectors like aerospace, electronics, and medical devices. Nial takes quality control seriously and provides Kovar Foil in a range of thicknesses, customized to fit customer needs. With a robust supply chain and deep technical know-how, Nial is there to support critical applications that need low thermal expansion and strong hermetic sealing performance.
Kovar Foil is an iron-nickel-cobalt alloy, made up of about 29% nickel, 17% cobalt, and the rest iron, along with trace amounts of manganese and silicon. It boasts a controlled coefficient of thermal expansion (CTE) that aligns closely with glass and ceramic materials. Kovar has a tensile strength of around 520 MPa and a yield strength near 415 MPa, along with impressive thermal stability and magnetic properties. Its mechanical strength and consistent thermal characteristics make it perfect for hermetic seals and electronic packaging.
| Standard Specification : | UNS K94610 | Werkstoff Nr 1.3981 | DIN 17745 | ASTM F15 | AMS 7726 | AFNOR NF A54-301 | S.E.W 385 |
| Dimensions : | ASTM, ASME, and API |
| Sheets Thickness : | Range from .008″ to .0125″ |
| Plates Thickness : | Ranges from .0125″ to 5.00″ |
| Sheets/Plates Width : | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Sheets/Plates Length : | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Tempers : | Annealed, 1/4, 1/2 Hard, 3/4 Hard, Full Hard |
| Hardness : | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Value Added Service : | Cladding, Heat Treatment, Annealed, Pickling, Polish, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Chemical Analysis | |
| Cr | 20 nom |
| Ni | 35 nom |
| Mo | 10 nom |
| Co | 35 nom |
| Material | Condition | Yield Strength (0.1% Offset) | Tensile Strength | Elongation % | ||
|---|---|---|---|---|---|---|
| psi | MPa | psi | MPa | |||
| Alloy K Kovar | Annealed | 49,000 | 340 | 75,000 | 520 | 42 |
| ASTM | UNS | Workstoff | AMS | DIN | AFNOR | S.E.W |
| F15 | K94610 | 1.3981 | 7726 | 17745 | NF A54-301 | 385 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Kovar foil is a high-performance alloy made primarily of iron, nickel and cobalt, which offers exceptional benefits in specialized applications. Its low thermal expansion makes it ideal for glass coatings on metals in electronics, ensuring stability under temperature changes Coatings are also highly resistant to thermal cycling, providing durability in internal environments is strong. Its excellent mechanical properties and ease of manufacture make it suitable for precisely complex designs, while the ability to maintain excellent performance at high temperatures ensures reliable performance at aerospace, electronics and pharmaceutical industries.
You’ll find Kovar Foil widely used in applications that require hermetic sealing, such as electronic package enclosures, vacuum tubes, microwave tubes, and semiconductor components. It’s also a popular choice in aerospace instrumentation, medical implants, and optical devices where maintaining dimensional stability under thermal stress is crucial. Thanks to its thermal expansion properties, Kovar bonds effectively with glass or ceramic materials, ensuring seals that are both long-lasting and leak-tight. Kovar Foil is vital for crafting components that demand precision, durability, and high reliability, especially in extreme temperature and pressure conditions.
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Houston, TX 77041
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