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In the heart of Manila’s industrial landscape, Diaz Sheetsandplates stands as a trusted partner for precision materials, specializing in the supply of Kovar foil. We understand the critical demands of advanced manufacturing, which is why we provide this specialized alloy with a commitment to consistency and reliability. Our team is dedicated to ensuring that your projects, from intricate electronics to sophisticated aerospace components, are supported by a material that meets the highest standards of quality and performance, right here from the Philippines.
Kovar foil is a carefully engineered nickel-iron-cobalt alloy known for its unique thermal expansion properties. Its composition is precisely balanced to ensure it expands and contracts at a rate that closely matches certain types of glass and ceramics, particularly when sealed. This characteristic is crucial for maintaining structural integrity and preventing leaks or cracks in assemblies subjected to temperature fluctuations. Mechanically, it offers good strength and ductility, allowing it to be formed and fabricated into the delicate, precise shapes required for sensitive components.
| 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.
The primary use for Kovar foil lies in creating reliable, hermetic seals in electronic and optical packages. You’ll find it in the protective housings for transistors, integrated circuits, and diodes, where it forms a permanent bond with glass or ceramic to shield sensitive internal components from moisture and contaminants. Its applications extend to aerospace and telecommunications equipment, laser systems, and even some medical devices. Essentially, wherever a durable, temperature-resistant seal between metal and a ceramic or glass is essential for long-term performance, Kovar foil provides the critical link.
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