Nilo42 Feni Constant Expansion Glass Sealed Alloy Tube

Model NO.
Nilo42
Curie Point
360
Density
8.12
Transport Package
Export Packing
Specification
Can discuss
Trademark
HUONA
Origin
China
HS Code
7505220000
Production Capacity
50 Ton/Month
Reference Price
$ 20.70 - 184.50
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Product Description

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
brand Chemical composition
Ni Fe C P Si Co Mn Al S
≤
4j42 41.5~42.5 Bal 0.05 0.02 0.3 - 0.80 0.10 0.02
4j45 44.5~45.5 Bal 0.05 0.02 0.3 - 0.80 0.10 0.02
4j50 49.5~50.5 Bal 0.05 0.02 0.3 1.0 0.80 0.10 0.02
4j52 51.5~52.5 Bal 0.05 0.02 0.3 - 0.60 - 0.02
4j54 53.5~54.5 Bal 0.05 0.02 0.3 - 0.60 - 0.02
 

Basic physical constants and mechanical properties of the alloy:
brand Thermal conductivity Specific heat capacity Density Electric resistivity Curie point
4j42 14.6 502J 8.12 0.61 360


 
Typical expansion character(10 -6 / ºC )
Temperature range 20~100 20~200 20~300 20~350 20~400 20~450 20~500 20~600
Expansion coefficient 5.6 4.9 4.8 4.95 5.9 6.9 7.8 9.2

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


 

 

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IMLPY.CN, 2023