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Kovar 4J42

Kovar 4J42
Product Details

Kovar alloy 4J42


Chemical Composition Wt.%

No.

Chemical composition (mass fraction) (%)


4j42


C


Mn


Si


P


S


Al


Co


Ni


Fe

≤0.05

≤0.80

≤0.30

≤0.020

≤0.020

≤0.10

≤0.10

41.25~42.5

bal

Brief Introduction

Iron-nickel alloy is a series of fixed-expansion alloys which can be matched with soft glass and ceramics with different expansion coefficients in a given temperature range by adjusting the nickel content. The expansion coefficient and the Curie point increase with increasing nickel content.

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