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Nilo42 Feni Constant Expansion Glass Sealed Alloy Tube

China Nilo42 Feni Constant Expansion Glass Sealed Alloy Tube, Find details about China 4j42, Glass Sealed Alloy Pipe from Nilo42 Feni Constant Expansion Glass Sealed Alloy Tube

Model NO.
Nilo42
Chemical Composition
Feni42
OEM
Yes
Trademark
HUONA
Transport Package
Export Packing
Specification
Can discuss
Origin
China
HS Code
7505220000
Model NO.
Nilo42
Chemical Composition
Feni42
OEM
Yes
Trademark
HUONA
Transport Package
Export Packing
Specification
Can discuss
Origin
China
HS Code
7505220000
Nilo42 FeNi Constant Expansion Glass Sealed alloy Tube 4j42

Iron nickel alloy is obtained at a given temperature range by adjusting the content of nickel internal energy and the expansion coefficient of different soft glass and ceramic matching a series of expansion alloy, its expansion coefficient and the Curie temperature increases with the increase of nickel content.The assembly is widely used in electric vacuum industry the sealing structure of the material

Chemical Composition in %, Invar
brandChemical composition
NiFeCPSiCoMnAlS
≤
4j4241.5~42.5Bal0.050.020.3-0.800.100.02
4j4544.5~45.5Bal0.050.020.3-0.800.100.02
4j5049.5~50.5Bal0.050.020.31.00.800.100.02
4j5251.5~52.5Bal0.050.020.3-0.60-0.02
4j5453.5~54.5Bal0.050.020.3-0.60-0.02
 

Basic physical constants and mechanical properties of the alloy:
brandThermal conductivitySpecific heat capacityDensityElectric resistivityCurie point
4j4214.6502J8.120.61360


 
Typical expansion character(10 -6 / ºC )
Temperature range20~10020~20020~30020~35020~40020~45020~50020~600
Expansion coefficient5.64.94.84.955.96.97.89.2

4 j42 alloy is mainly used for soft glass and ceramic seal, such as electron tubes, transistors and integrated circuit of fuses, framework, and the sealing plug

Nilo42 Feni Constant Expansion Glass Sealed Alloy Tube
 

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