4J6 Fe-Ni-Cr Glass Sealing Alloy Plate Expansion

4J6 Fe-Ni-Cr Glass Sealed Alloy Plate

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 is an important sealing structure material in the electric vacuum industry, In addition, the alloy contains 42% nickel, that is why the US label is called 42Ni-6Cr (Glass sealing 42-6, UNSK94760).American Carpenter also produced the alloy that called Carpenter 42-6.

Equal Grades

Chemical composition(%)

Density: 8.11g/cm³

Standards: ASTMF31-16(Glass sealing 42-6),YB/T 5253-2005

Application

4J6 alloy is glass sealed alloy FeNiCr departments on behalf of the brand.The alloy via air factory use for a long time, stable performance.Mainly used for making all kinds of electric vacuum components, such as electronic tube anode caps, etc.That should be chosen in the application of matching expansion coefficient of glass and metal.In order to improve the sealing strength of metal and glass allows alloy containing aluminum, cerium.When the heat treatment, grain size is too big, should be avoided to ensure the strip with good deep drawing extension performance and air tightness.

The available forms

Stip,Rod,pipe ,plate, tube and so on.

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.

Suzhou Xunshi New Material Co., Ltd (refered as Xunshi afterwards) is a professional supplier of high performance alloys. Our factory is specialized in manufacturing Nickel alloys & Cobalt alloys for 10⁺ years，with a company mission to provide a high quality, reliable source for precision alloys, high temperature alloys and stainless steels in both pilot run and mass production. We are professionally manufacturing materials with unique features, which are then used in aerospace, military, electronics, marine, petroleum and petrochemical industries.

Base on “Quality-oriented, Leading Technology, Continuous Improvement, Customer Satisfaction”, we believe Xunshi could be your best supplier.

Product Scope of Xunshi

· Inconel

· Hastelloy

· Incoloy

· Monel

· Nimonic

· Nitronic

· Haynes

· Special Stainless Steel

· Soft Magnetic Alloy

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· Elastic Alloy

· Controlled Expansion Alloy

· Magnetostrictive Material

Services of Xunshi

· Material selection

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· Heat treatment

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Advantages of Xunshi

· Experienced in industry

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· Customers from 30+ countries trust us

Xunshi is engaged in introducing China-origin high performance alloys to the entire world. Choose Xunshi, choose high performance.