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In Delhi, India, Daksh Sheets and Plates is a leading producer and supplier of precisely engineered Kovar Foil, serving specialised markets like electronics, aerospace, and telecommunications. We provide Kovar Foil that satisfies the exacting specifications of high-reliability applications, and we are renowned for our dedication to quality and accuracy. Tight tolerances, superior surface finish, and consistent thickness are guaranteed by our sophisticated processing capabilities. Daksh Sheets and Plates provides trustworthy Kovar Foil solutions for crucial sealing and joining applications in electronic and hermetic packages across international markets while adhering to international standards and concentrating on the needs of individual customers.
Approximately 29% nickel, 17% cobalt, and the remaining iron make up Kovar Foil, a nickel-iron-cobalt alloy that is intended to be compatible with glass and ceramic materials due to thermal expansion. It has good mechanical strength, good dimensional stability, and minimal thermal expansion. Tensile strength of about 517 MPa, yield strength of about 415 MPa, and elongation of 20–30% are examples of mechanical properties. Kovar is therefore perfect for uses where high hermetic integrity is required. Kovar Foil with exact metallurgical qualities, certified to ASTM F15 and other pertinent industry standards, is supplied by Daksh Sheets and Plates.
| 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.
Applications requiring hermetic sealing between metal and glass or ceramic, like vacuum tubes, microwave tubes, semiconductor packaging, and other electronic components, are the main uses for Kovar foil. It is perfect for electronic housings, transistors, and diode headers because of its thermal expansion characteristics, which closely resemble those of borosilicate glass and alumina ceramics. Kovar Foil is also used in sensitive instrumentation and sensor packages in the aerospace and defence industries. High-quality Kovar foil from Daksh Sheets and Plates ensures superior performance in sophisticated electronic assemblies and high-tech devices by supporting dependability, thermal stability, and a long operational life in demanding environments.
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Hyderabad, India
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