Kovar / Nilo K (ASTM F15)
Technical Data Sheet
|Kovar Chemical Composition (Basic Density 8.36)|
|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|
Kovar (Alloy K) 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. 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.
Typical Mechanical Properties
|Material||Condition||Yield Strength (0.1% Offset)||Tensile Strength||Elongation %|
Werkstoff Nr 1.3981
ASTM F 15
AMS 7726 Wire
AMS 7727 Bars and Forgings
AMS 7728 Sheet, Strip and Plate
MIL-I-23011 class 1
AFNOR NF A54-301
Alloy 29-17 ®
Nilo K ®
Pernifer 29-18 ®
We are experts in difficult to obtain sizes contact Sales for many other sizes and forms.
At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (firstname.lastname@example.org).
Thanks to our global logistics network we can source from anywhere in the world in just a few days. We use a range of transport partners to enable us to ship overnight within the U.K. and Europe and provide fast shipping solutions to the rest of the world. If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money. To find out more about our services click here.
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
Sell your Stock Online at 4metal.co.uk