Product Properties

● Other names: Alloy42,K94100,42HA (Russia), W.Nr. 1.3917● Origin: Danyang, Jiangsu, China

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Product Description

● Alloy category: expansion alloy

● Base material shape: wire/strip/bar/pipe/plate

● Application areas: aerospace, military fields, telecommunications, marine ships, industrial fields, petrochemical industry

Product Description and Application

4J42 iron-nickel fixed-expansion alloy is a series of fixed-expansion alloys that can match soft glass and ceramics with different expansion coefficients in a given temperature range by adjusting the nickel content, and its expansion coefficient and Curie point increase with the increase of nickel content. The alloy is widely used in the electric vacuum industry sealing structure material, which is used to make electrical components and soft glass, ceramic matching sealing. In the electric vacuum industry and the corresponding soft glass matching sealing. 4J42 also has good corrosion resistance and fatigue resistance, and can be used to manufacture various stressed parts and high-precision measuring instruments. 4J42 is a high-performance alloy with excellent performance and wide application. With the continuous development of industrial technology, its application field will be more and more widely, and it also needs continuous research and improvement to meet various engineering needs.

Ingredient content of 4J42

Element	Ni	Fe	C	Si	Mn	S	P	Al	Ti	Co
4J42	41.0%~42.5%	55.21%~56.71%	≤0.05%	≤ 0.3%	≤ 0.8%	≤0.02%	≤0.02%	≤0.1%	1.8~2.7	≤1%

Key words:

4J42

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