Home > Kovar Sheets and Plates
Okoye Nickel Alloys, a prominent manufacturer and supplier based in Kinshasa, Congo, specializes in high-quality Kovar Sheets and Plates. These products are celebrated for their outstanding thermal expansion compatibility and dimensional stability. Kovar, an iron-nickel-cobalt alloy, is uniquely crafted to create a strong bond with glass or ceramics, making it essential in industries like electronics, aerospace, and instrumentation. Our sheets and plates provide remarkable mechanical strength, uniformity, and resistance to thermal shock. At Okoye Nickel Alloys, we prioritize precise manufacturing and strict adherence to international quality standards, ensuring our Kovar Sheets and Plates deliver exceptional performance in high-precision and hermetically sealed electronic assemblies.
Kovar Sheets and Plates are made up of roughly 29% nickel, 17% cobalt, and the rest iron, along with small amounts of manganese, silicon, and carbon. This specific blend gives Kovar its low coefficient of thermal expansion, which closely aligns with that of glass and ceramics. The alloy boasts a tensile strength of about 520 MPa, a yield strength of around 345 MPa, and an elongation of 30%, ensuring excellent ductility and workability. Kovar remains stable during thermal cycling, resists deformation, and possesses magnetic properties that are ideal for precise electronic and sealing applications.
| 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 Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Nimonic Sheet and Plates in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
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Kovar Sheets and Plates are commonly found in industries like electronics, aerospace, telecommunications, and instrumentation, where glass-to-metal sealing is crucial. They’re perfect for applications such as vacuum tubes, transistors, diodes, and integrated circuit packages, offering airtight seals that effectively prevent gas leaks. In the aerospace and defense sectors, Kovar is utilized in sensor housings, microwave tubes, and radar components due to its impressive thermal stability and magnetic characteristics. Additionally, it’s used in electronic connectors, feedthroughs, and power devices, ensuring dependable performance even with temperature fluctuations. The alloy’s knack for maintaining dimensional accuracy and durability makes Kovar Sheets and Plates a top choice for cutting-edge engineering projects.
