NILO K ASTM F15 Seamless Tube

NILO K is equals to Kovar (Alloy K) which is a nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics.

Send Inquiry

NILO K ASTM F15 seamless tube

Kovar (Alloy K) is used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Kovar (Alloy K) is used for high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

Application of Kovar (Alloy K)

Matching and sealing with borate hard glass and borosilicate hard glass; making sealed relays, release pairs (pins and sockets) and shells in glass-sealed connectors, sealing structural materials in electronic devices, waveguides, transistors and integrated circuits.

Kovar (Alloy K) is an alloy consisting of 29% Nickel, 17% Cobalt, .2% Silicon, .3% Manganese and 53.5% Iron. Kovar (Alloy K) is known for its low coefficient of thermal expansion. Kovar (Alloy K) is suitable for applications where matched expansion seals between metal and glass parts are used. Kovar (Alloy K) end uses are typically glass seals in the electronics industry. Typical applications for Kovar (Alloy K) are glass to metal seals, lead frames, electronic package bases, lids, power tubes, transistors, diodes, microwave tubes, hybrid packages, X-ray tubes, vacuum tubes, and light bulbs.

Specificaiton of NILO K ASTM F15 seamless tube