4j29
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4j29
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- Product Description
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- Commodity name: 4j29
4J29 is a typical Fe-Ni-Co hard glass sealing alloy, which has been used in aerospace factories for a long time and has stable performance. The alloy's oxide film is dense and can be well wetted by glass. It is the main sealing structural material for electronic vacuum devices and is mainly used for glass sealing of electronic vacuum components such as transmitting tubes, oscillating tubes, igniting tubes, magnetrons, transistors, sealed plugs, relays, integrated circuit leads, chassis, shells, and brackets.
Product Description
● Alloy Type: Expansion Alloy
● Base Material Shape: Wire/Strip/Rod/Tube/Sheet
● Application Fields: Precision Instruments, Aerospace
Product Description and Application
4J29 is a typical Fe-Ni-Co hard glass sealing alloy, which has been used in aviation factories for a long time and has stable performance. The alloy's oxide film is dense and can be well wetted by glass. It is the main sealing structural material for electronic vacuum devices and is mainly used in the glass sealing of electronic vacuum components such as transmitting tubes, oscillating tubes, igniting tubes, magnetrons, transistors, sealed plugs, relays, lead wires, chassis, shells, and brackets of integrated circuits.
4J29 Composition
Element Ni Fe Cu Cr C Si Mn S P Mo Nb Co 4J29 28.5%~29.5% 51.23%~53.23% ≤0.2% ≤0.2% ≤0.03% ≤0.3% ≤0.5% ≤0.02% ≤0.02% ≤0.2% ≤0.002 16.8%~17.8%
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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