Home > Kovar Foil
Al Vishwas Nickel Alloys distinguishes itself as a respected manufacturer and supplier of premium Kovar Sheets Foil, proudly serving a wide range of industries from its headquarters in Dubai, UAE. Known for its precision, dependability, and stringent quality control, the company provides Kovar foil products purpose-built for applications requiring superior thermal expansion control and remarkable sealing capabilities. By employing advanced processing methods, Al Vishwas Nickel Alloys guarantees uniform thickness, dimensional precision, and material soundness. With a strong commitment to customer satisfaction and extensive technical expertise, the company has built its standing as a reliable partner for clients across electronics, aerospace, instrumentation, and other fields that call for high-performance specialty alloys.
Kovar Sheets Foil consists mainly of iron, nickel, and cobalt, generally made up of roughly 54% Fe, 29% Ni, and 17% Co. This precisely proportioned alloy makeup enables a thermal expansion coefficient that matches closely with that of glass and ceramic materials. From a mechanical standpoint, Kovar foil offers good ductility, remarkable tensile strength, and superb dimensional stability, even under changing temperatures. It maintains its structural integrity throughout thermal cycling and provides dependable performance in settings that demand hermetic sealing. Thanks to its formability and predictable thermal behavior, Kovar foil is ideal for delicate, high-precision 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 |
At Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Nimonic Sheet and Plates in Dubai, UAE, delivering advanced solutions for every piping requirement you have. Our modern manufacturing facilities are strategically situated in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-quality materials on hand and ready for immediate supply. We are committed to providing outstanding products and services, guaranteeing dependability and excellence for our worldwide customers.
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Kovar Sheets Foil is applied across many uses where accurate control of thermal expansion and hermetic sealing matter most. It’s frequently found in electronic parts such as semiconductor packaging, lead frames, transistor headers, and vacuum tube components. Within the aerospace and defense fields, Kovar foil plays a vital role in sensor housings, precision instrumentation, and sealed enclosures exposed to temperature swings. Producers of scientific and medical equipment rely on it for X-ray detectors and other delicate devices, guaranteeing dependable operation under challenging conditions.
