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4j42 Iron Nickel Constant Expansion Glass Sealed Alloy Wire Nilo42

China 4j42 Iron Nickel Constant Expansion Glass Sealed Alloy Wire Nilo42, Find details about China 4j42, Glass Sealed Alloy Wire from 4j42 Iron Nickel Constant Expansion Glass Sealed Alloy Wire Nilo42

Model NO.
4j42
Chemical Composition
Feni42
OEM
Yes
Sample
Free
Stock
Seyn
Surface
Bright
Trademark
huona
Transport Package
Export Packing
Specification
Can discuss
Origin
Shanghai
HS Code
750620000
Model NO.
4j42
Chemical Composition
Feni42
OEM
Yes
Sample
Free
Stock
Seyn
Surface
Bright
Trademark
huona
Transport Package
Export Packing
Specification
Can discuss
Origin
Shanghai
HS Code
750620000
4j42 Iron nickel constant expansion glass sealed alloy wire Nilo42

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

4j42 Iron Nickel Constant Expansion Glass Sealed Alloy Wire Nilo42


 

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