Aung Metals, a well-respected manufacturer and supplier located in Naypyidaw, Myanmar, focuses on crafting top-notch **Kovar Bars and Rods** that adhere to strict industrial and technological standards. These Kovar products are celebrated for their exceptional thermal expansion compatibility with glass and ceramics, making them a go-to choice for precision, durability, and reliability in critical applications. Aung Metals employs cutting-edge manufacturing techniques and rigorous quality control measures to guarantee consistent mechanical performance and precise dimensional accuracy. Catering to sectors like electronics, aerospace, and vacuum technology, the company delivers Kovar solutions that excel in performance, longevity, and operational efficiency, especially in environments that demand precise thermal and mechanical stability.
**Kovar Bars and Rods** are primarily made up of nickel (29%), cobalt (17%), and iron (the remainder), resulting in an alloy with a carefully controlled coefficient of thermal expansion. This unique composition allows Kovar to expand and contract in harmony with borosilicate glass, effectively preventing thermal stress in seals and joints. On the mechanical side, Kovar bars and rods boast impressive tensile strength, outstanding ductility, and stability across a wide temperature range. These characteristics make them perfect for applications that require high dimensional accuracy and dependable performance under thermal cycling.
| Standards : | UNS K94610 | Werkstoff Nr 1.3981 | DIN 17745 | ASTM F15 | AMS 7726 | AFNOR NF A54-301 | S.E.W 385 |
| Size Range : | 0.015″ Thk up to 2″ Thk |
| Thickness : | Range from .008″ to .0125″ |
| Length : | 2m, 2.44m, 3m, or as required |
| Width : | 10-2500mm |
| Weight % | Ni | Fe | Co | C | Mn | Si | Al | Cr | Mg | Zr | Ti | Cu | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy K Kovar | 29.0 | 53.0 | 17.0 | 0.04 max | 0.50 max | 0.20 | 0.10 max | 0.20 max | 0.10 max | 0.10 max | 0.10 max | 0.20 max | 0.20 max |
| 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 |
Kovar rods, primarily composed of iron, cobalt, and nickel, are resistant to galvanic corrosion due to their similar electrochemical properties with most alloys, reducing the risk when paired with compatible materials.
Yes, Kovar bar can be welded, but it requires special techniques and precautions due to its unique composition and thermal expansion properties. Proper heat control and filler metals are essential.
Kovar rods typically come in diameters ranging from 1/8" to 4" and lengths of up to 12 feet. Finishes include mill, polished, and brushed surfaces for various applications.
**Kovar Bars and Rods** find their place in industries that require precise thermal and mechanical compatibility. They’re frequently used in electronic components, glass-to-metal seals, vacuum tubes, and hermetic packaging. In the aerospace and semiconductor sectors, Kovar rods serve as connectors, electrodes, and structural elements that endure thermal cycling. Their unique blend of mechanical strength and matched thermal expansion guarantees reliability, precision, and durability in critical applications. Kovar bars and rods are vital for creating high-performance components in technology-driven and industrial settings.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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