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

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
Max 29.5 0.2 17.8 0.20 0.03 0.50 0.30 0.02 0.02 0.20

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

silicon gap filler

,

aluminum c channel extrusion

,

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

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Product Detail
Brand Name :
XUNSHI
Model Number :
Kovar
Place of Origin :
China
MOQ :
20kg
Price :
USD 20-50 per kg
Payment Terms :
T/T
Contact Supplier
ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip
ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip
ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip
ASTM F-15 Controlled Expansion Alloys UNS K94610 Glass Sealing Rolled Strip

Suzhou Xunshi New Material Co., Ltd

Verified Supplier
8 Years
jiangsu
Since 2015
Business Type :
Manufacturer
Main Products :
Nickel Cobalt Alloy, Inconel Nickel Alloy, Soft Magnetic Alloys
Total Annual :
1000-1200
Employee Number :
100~120
Certification Level :
Verified Supplier
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