4j42
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4j42
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- Product Description
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- Commodity name: 4j42
4J42 iron-nickel controlled expansion alloy is a series of controlled expansion alloys obtained by adjusting the nickel content to match different soft glasses and ceramics with different expansion coefficients within a given temperature range. Its expansion coefficient and Curie point increase with increasing nickel content. The alloy is a widely used sealing structural material in the electric vacuum industry, used to make seals that match soft glass and ceramics on electrical components. In the electric vacuum industry, it is matched and sealed with corresponding soft glass.
Product Description
● Alloy Type: Invar Alloy
● Base Material Shape: Wire/Strip/Rod/Tube/Plate
● Application Fields: Aerospace, Military, Telecommunications, Marine, Industrial, Petrochemical
Product Description and Application
4J42 iron-nickel constant expansion alloy is a series of constant expansion alloys obtained by adjusting the nickel content to match different soft glass and ceramics within a given temperature range. Its coefficient of expansion and Curie point increase with increasing nickel content. This alloy is a widely used sealing structural material in the electronic vacuum industry, used to make seals that match soft glass and ceramics on electrical components. It is matched and sealed with corresponding soft glass in the electronic vacuum industry. 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 applications. With the continuous development of industrial technology, its application fields will become increasingly wider, and continuous research and improvement are needed to meet various engineering needs.
Composition 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%
The company currently owns production equipment such as vacuum melting, electroslag remelting, forging and hot rolling (outsourced), solution treatment, machining, cold drawing, cold rolling (outsourced), and polishing. Our own laboratory can complete the testing of alloy chemical composition, mechanical properties, and flaw detection.
We can independently produce high-performance alloy materials such as nickel-based superalloys, cobalt-based superalloys, precision alloys, and special stainless steels. Products: forgings, billets, coils, bars, slabs/sheets, etc.
High-temperature alloy cobalt-based GH605/Co-50, etc. Iron-based GH1035/GH696, etc. Nickel-based GH901/GH3030/GH3044/GH4033/GH80A/GH90, etc. Corrosion-resistant alloys Inconel600/625/718/X-750/C276, etc. Expansion/precision alloys 4J29/32/33/36, etc.
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