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Based in Manila, Philippines, Diaz Sheetsandplates stands as your trusted partner for high-quality Kovar materials. We understand that precision and reliability are paramount in specialized industries, which is why we are dedicated to manufacturing and supplying Kovar sheets and plates that meet the most demanding specifications. Our commitment is to provide not just a product, but a dependable solution that supports innovation and durability in your critical applications, ensuring your projects are built on a foundation of excellence.
Kovar possesses a unique composition, primarily an iron-nickel-cobalt alloy, which is engineered for a specific purpose: its thermal expansion rate closely matches that of borosilicate glass and certain ceramics. This characteristic is crucial, as it prevents stress fractures when the materials are sealed together. Alongside this key property, it also offers good mechanical strength and ease of fabrication, allowing it to be machined and formed to meet the precise needs of complex 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 Sheets and Plates provide excellent thermal expansion properties, making them ideal for applications requiring good compatibility with materials such as glass and ceramics Due to low coefficient of thermal expansion they maintain stability under temperature changes. Kovar also has good mechanical strength, corrosion resistance and strong weldability, making it suitable for harsh environments. Its magnetic properties are stable, making it useful in electronics and aerospace applications, especially for hermetic sealing of components. These features make Kovar ideal for high-performance precision applications.
The primary use of Kovar sheets and plates is in creating reliable, hermetic seals in electronic and precision devices. You’ll find this material essential in the production of transistor and integrated circuit packages, where it forms the sturdy leads that pass through the glass envelope without cracking it. Its applications extend to critical components in aerospace, telecommunications, and medical devices, such as lasers and x-ray tubes, ensuring these sensitive instruments remain protected from the environment for years of stable operation.
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