Description

Glass sealed and controllled expansion alloys 
*kovar alloy, ASTM F*5, Nilo-K, UNS K****0 (FeNi*9Co*7),Chinese 4J*9 
* Specifications:ASTM F*5; DIN ****5; S.E.W. **5; Werkstoff Nr. 1.***1; AFNOR NF A*****1 

Introduction: 
********************************- 
A Nickel-Iron-Cobalt, controlled expansion alloy containing *9% Nickel. It\'s coefficient of expansion (which decreases with rising temperature to the inflection point), matches the expansion rate of borosilicate glasses and aluminia ceramics. Applications include glass to metal seals in applications requiring high reliability or resistance to thermal shock, ie. high-power transmitting valves, transistor leads and heaters and photography flash bulbs. 
*******************************- 

Similar Grades 
Russia U.S.A. U.K. Japan France Germany 
*9HK Kovar Nilo K KV*1 Dilver P0 Vacon *2 
*9HK Rodar 
Techallony Glasseal ****7 Teleaseal KV*2 
KV*3 Dilver P1 Silvar *8 

Applications: 
Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. 
This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In intergrated circuits, it has been used for the flat pack and the dual-in-line package. 

Specification: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube 

Note: we could do any other products with specified technical standard, say, ASTM,SAE,DIN,S.E.W.,JIS,ISO,IEC,NF,BS,ROCT.PLS contact us for more information.

***Welcome to our company\'s website to know us more. *4hours online, Soonest Reply!