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Al Shakru Sheets and Plates, a first-rate manufacturer and supplier based in Dubai, UAE, is dedicated to producing high-quality Kovar Sheets and Plates that deliver outstanding thermal stability and precision. These sheets and plates are recognized for their controlled expansion characteristics, which makes them ideal for applications requiring a robust bond between metal and glass or ceramics. At Al Shakru Sheets and Plates, we take pride in guaranteeing that each Kovar product conforms to international standards, delivering superb dimensional accuracy, corrosion resistance, and strength. Our Kovar Sheets and Plates are used across a range of industries, including aerospace, electronics, and scientific fields, where dependability, precision, and performance under extreme temperature shifts are essential.
Kovar Sheets and Plates consist of approximately 29% nickel, 17% cobalt, with iron making up the remainder , forming a controlled expansion alloy that matches precisely the thermal expansion of borosilicate glass and ceramics. This material offers a tensile strength of around 520 MPa , superb machinability, and remarkable thermal stability. Kovar preserves its mechanical integrity even as temperatures vary, exhibiting low thermal conductivity and magnetic permeability. Such properties make it a preferred option for precision engineering and electronic uses that require tight dimensional control and lasting durability.
| 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 supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Kovar Sheets and Plates offer excellent thermal expansion characteristics, which makes them well-suited for applications that demand strong compatibility with materials like glass and ceramics Thanks to their low coefficient of thermal expansion, they stay stable when temperatures shift. Kovar also delivers solid mechanical strength, resistance to corrosion, and reliable weldability, which makes it appropriate for demanding environments. Its magnetic properties remain steady, making it valuable in electronics and aerospace uses, particularly for the hermetic sealing of components. These qualities make Kovar perfect for high-performance precision applications.
Kovar Sheets and Plates see use throughout the aerospace, electronics, telecommunications, and scientific instrumentation sectors. They work ideally for glass-to-metal seals, electronic components, semiconductor packages, vacuum devices, and laser systems . Within the aerospace and defense fields, Kovar ensures dependable hermetic sealing even in demanding conditions. Additionally, it appears in electrical feedthroughs, optical devices, and measurement instruments , applications where precision matters most. Thanks to its exceptional thermal compatibility and mechanical strength, Kovar proves indispensable for precision components required to perform reliably under fluctuating thermal and mechanical stresses.
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