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42Ni-6Cr Expansion Alloy 4J6 Stip Rod Pipe Tube Forms
|Equal Grade||42Ni-6Cr ,Carpenter42-6 ,Sylvania4 ,Sealmet||Forms Of Supply||Strip, Plate, Rod,pipe, Tube|
|Sepc||YB/T 5253-2005,ASTMF31-16(Glass Sealing 42-6）||Density||8.11g/cm3|
|Product Name||Expansion Alloy||Certification||ISO9001|
42Ni-6Cr Expansion Alloy,
4J6 Expansion Alloy,
4J6 Controlled Expansion Alloys
42Ni-6Cr Expansion Alloy 4J6 Stip Rod Pipe
4J6 is a typical glass sealing alloy, the coefficient of expansion is similar to the soft glass in the temperature range of 20~400℃. The alloy contains 6% chromium, and after oxidation treatment the alloy surface produces a very dense oxide membrane that is strongly bound to the substrate and well infiltrated with the soft glass, so that can get high strength sealing surface.
The alloy 4j6 contains 42% nickel, that is why the US label is called the 42Ni-6Cr (Glass sealing 42-6, UNSK94760). US Carpenter also produced the alloy called Carpenter 42-6 .
|Grade||Heat treatment||Average line coefficient of expansion(10-6/°C)|
|4J6||Heat to 1100 °C ± 20 °C in a vacuum or hydrogen atmosphere and temperature insulation for 15 minutes, then cooling down to below 200 °C for no more than 5 °C / minutes||7.6-8.3||9.5-10.2||-|
Typical expansion coefficient
|Average coefficient of linear expansion (μm/m·°C)||6.8||7.0||7.7||9.7||-||11.1||12.2|
Standards: ASTMF31-16(Glass sealing 42-6),YB/T 5253-2005
The alloy has stable performance and used by the aviation factories long term.It is mainly used to make various electric vacuum components, such as the anode cap of the electronic beam tube, the vacuum display screen and so on.
The available forms
Stip,Rod,pipe ,plate and tube
Our 4J6 precision strips were exported to the United States to a well-known air headphones and hearing aid manufacturer. The product quality was won the trust of international customers.