Home > Kovar Foil
Wai Nickel Alloys is a well-respected manufacturer and supplier located in Naypyidaw, Myanmar. They specialize in high-quality Kovar Sheets and Foils, which are celebrated for their exceptional thermal expansion control, strength, and stability. These products are meticulously crafted from a nickel-cobalt-iron alloy that has a thermal expansion rate closely aligned with that of glass and ceramics, making them perfect for hermetic sealing applications. Wai Nickel Alloys adheres to strict quality standards, ensuring smooth surface finishes and precise thickness control, which makes their Kovar Sheets and Foils ideal for the electronics, aerospace, and instrumentation sectors.
The composition of Kovar Sheets and Foils includes about 29% nickel, 17% cobalt, and the remainder iron, along with trace amounts of silicon, manganese, and carbon. This specific blend guarantees a low and consistent coefficient of thermal expansion, especially between 20°C and 400°C, matching that of borosilicate glass. These materials boast a tensile strength of around 520 MPa, excellent dimensional stability, and good machinability. They also offer remarkable resistance to oxidation and retain their mechanical and magnetic properties even under thermal cycling and vacuum conditions.
| 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 Wai Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Nimonic Sheet and Plates in Naypyidaw, Myanmar, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Myanmar, 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.
Contact us to get a quick quote for your requirement.
Kovar Sheets and Foils find extensive use in industries that demand precision and hermetic sealing. Common applications include electronic and semiconductor components, glass-to-metal seals, vacuum tubes, transistor leads, and microwave devices. In the aerospace and defense sectors, they are utilized for sensor housings, instrumentation parts, and electronic enclosures that are subjected to varying temperatures. Their ability to maintain thermal compatibility with glass and ceramics, along with their outstanding mechanical properties, makes Kovar Sheets and Foils a top choice for critical electronic, scientific, and industrial applications.
