Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry

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Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry

Name: Astm F15 Seamless Kovar Tube Matching Sealing For Electric Vacuum Industry
Brand: JINXING
Price: 15 USD

China Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry wholesale

Brand Name : JINXING

Model Number : Kovar Tube

Certification : ISO 9001

Place of Origin : CHINA

MOQ : 50KGS

Price : 15~50USD/kg

Payment Terms : L/C, D/A, D/P, T/T, Western Union

Supply Ability : 100000kgs/M

Delivery Time : 25 work days

Packaging Details : Plywood Case

Material : Kovar Alloy K UNS K94610

Surface : Pickled , Polished

Standard : ASTM F15

Heat Treatment : Solution Annealed

Size : Customized

Application : Glass sealing

Density : 8.36g/cm3

Melting Point : 1450C

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Kovar Tube

Kovar alloy tube , Alloy K / UNS K94610 / ASTM F15

Description

Alloy K / K94610 / ASTM F15 Also known as Kovar*** and Nilo K**, this alloy contains 29% nickel with a 17% cobalt addition. Its composition is tightly controlled within narrow limits to ensure precise and universal thermal expansion and mechanical characteristics. This helps the material provide high integrity glass-to-metal and ceramic-to-metal seals in applications requiring reliability and resistance to thermal shock. Alloy K is often used for the manufacture of hermetic seals with both the harder Pyrex or borosilicate glasses and alumina-type ceramic materials. It finds extensive application in the production of transistors and diodes for lids and closures in a variety of hybrid electronic circuit packages and also in the manufacture of microwave tubes.

Main Application:

Matching sealing in electric vacuum industry and hard glass

Material :

Russia	USA	England	Japan	Franch	Germany
29HK	kovar	Nilo K	KV-1	Dilvar P0	Vacon 12
29HK-B	Rodar Techallony Glasseal 29-17	Teleaseal	KV-2 KV-3	Dilver P1	Silvar

Content Composition %

C	P	S	Mn	Si	Cu	Cr	Mo	Ni	Co	Fe
Less than								Ni	Co	Fe
0.03	0.02	0.02	0.5	0.3	0.2	0.2	0.2	28.5-29.5	16.8-17.8	Rest

Physical properties

Density	g/cm3	8.25
Curie Point	℃	430
Resistivity	μ· m	0.48
Tensile strength Mpa	Cold state
Tensile strength Mpa	Annealing	520
Yield strength Mpa	Cold state
Yield strength Mpa	Annealing	330
Elongation %	Cold state
Elongation %	annealing	30

The linear expansion coefficient of the kovar alloy is similar to that of borosilicate glass at 20-450 ℃, the Curie point is higher, and the alloy has good low temperature structure stability. The oxide film of the alloy is compact and can be well infiltrated by glass. It does not interact with mercury and is suitable for use in instruments containing mercury discharge. It is the main sealing structure material of electric vacuum device.

Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry

Product Tags:

ni based superalloys

ni based alloys

Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry Images

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