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ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip

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ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip

Name: ASTM F15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip
Brand: XUNSHI
Price: 20 USD

Quality ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip for sale

Brand Name : XUNSHI

Model Number : Kovar

Place of Origin : China

MOQ : 20kg

Price : USD 20-50 per kg

Payment Terms : T/T

Supply Ability : 10000kg per week

Delivery Time : 3-5 weeks

Packaging Details : Wooden case

Material : Fe-Ni-Co

Forms : Strip, bar, wire, pipe

Equal grades : 4J29(China), ASTM F-15, NILO K, Pernifer 2918, Rodar, Dilvar P1, UNS K94610, 29-17 alloy

Product Name : Controlled Expansion Alloys

Model : Kovar

Brand : AIWEN

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Kovar Controlled Expansion Alloy ASTM F-15 UNS K94610 Glass Sealing Alloy

Kovar controlled expansion alloy, most likely know as 4J29 in China, is a Nickel Iron alloy with 29% Nickel, 17% Cobalt and the remaining balance is Iron.

Kovar controlled expansion alloy, was invented to meet the need for a reliable glass-to-metal seal, which is required in electronic devices such as light bulbs, vacuum tubes, cathode ray tubes, and in vacuum systems in chemistry and other scientific research area.

Kovar has thermal expansion similar to glass. Meanwhile its nonlinear thermal expansion curve can often be made to match a glass. This makes it the most popular controlled expansion alloy so far.

Chemical compostion of Kovar

Alloy	%	Ni	Cr	Co	Cu	C	Mn	Si	P	S	Mo	Fe
Kovar	Min	28.5		16.8								Rem
Kovar	Max	29.5	0.2	17.8	0.20	0.03	0.50	0.30	0.02	0.02	0.20	Rem

The average linear expansion coefficient(10^-6C)

20~100°C	20~300°C	20~400°C	20~450°C	20~500°C	20~530°C	20~600°C
—	—	4.6~5.2	5.1~5.5	—	—	—

Applications of Kovar

Light bulbs
Vacuum tubes
Cathode ray tubes
Power tubes
Microwave tubes
Transistoers
Diodes
Hybrid packages
Other kinds of scientific instruments

Forms available at A-ONE ALLOY

Bar
Tube
Strip
Wire
Plate
Capillary

Product Tags:

iron nickel alloy

thermal expansion nickel

ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip Images

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