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Help CenterNickel Electrical Heating Alloy KOVAR Wire
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Specifications
It`s widely used in vacuum element,emitted pipe,diplay tube,transistor,sealing plug and shell of relay.Nickel electrical heating alloy KOVAR wire
Properties of Kovar
Kovar alloy has linear expansion coefficient when connecting to the hardglass in 20-450,
High curie point,good stablity in low temperture,compact filam,good plastic,machining,
welding.It`s widely used in vacuum element,emitted pipe,diplay tube,transistor,sealing plug and shell of relay.
Chemical Compositions:
Designation |
Chemical composition,% |
||||||||||
C |
S |
P |
Mn |
Si |
Cu |
Cr |
Mo |
Ni |
Co |
Fe |
|
Not More Than | |||||||||||
4J29 |
0.03 |
0.020 |
0.020 |
0.5 |
0.30 |
0.20 |
0.20 |
0.20 |
28.529.5 |
16.817.8 |
surplus |
Thermal Expansion Properties:
Mechanical Properties in the Annealed Condition:
Physical Properties:
Property:dense oxide film,strong anti-oxidability,good plasticity,low expansion coefficient,abradability.
Function:fusion bonding,welding,machining,sealing.
Specs:thickness 0.08mm~3mm width 5mm~250mm
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