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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

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
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
Annealing 520
Yield strength Mpa Cold state
Annealing 330
Elongation % Cold state
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

      
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