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

Categories Nickel Based Alloys
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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Astm F15 Seamless, Kovar Tube Matching Sealing For Electric Vacuum Industry

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 :

RussiaUSAEnglandJapanFranchGermany
29HKkovarNilo KKV-1Dilvar P0Vacon 12
29HK-BRodar
Techallony Glasseal 29-17
TeleasealKV-2
KV-3
Dilver P1Silvar

Content Composition %

CPSMnSiCuCrMoNiCoFe
Less than
0.030.020.020.50.30.20.20.228.5-29.516.8-17.8Rest

Physical properties

Densityg/cm38.25
Curie Point430
Resistivityμ· m0.48
Tensile strength MpaCold state
Annealing520
Yield strength MpaCold state
Annealing330
Elongation %Cold state
annealing30

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.


Product Tags:

ni based superalloys

  

ni based alloys

  
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