Expansion Alloy 4J6 For The Vacuum Display Screen ASTMF31-16

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.

Chemical Composition(wt, %)

Equal Grades

• H42X6(Russia)
• 42Ni-6Cr ,Carpenter42-6 ,Sylvania4 ,Sealmet 4(USA)
• NRS-1 ,YEF-426 ,SNC(Japan)
• ASV(426) ,Ni42Cr6(France)
• Vacovit426 ,NiCr426 (German)

Physical performance

Density:

8.11g/cm³

Standards

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

Available forms

Stip,Rod,pipe ,plate and tube

Application

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 Screenand so on.

About XUNSHI

Suzhou Xunshi New Material Co. Ltd- referred as XUNSHI hereafter, is a professional manufacturer of high-performance alloy products. XUNSHI is engaged in supplying high quality and cost-effective Superalloy, Anti-Corrosion Alloy, Precision Alloy, Special Stainless Steel and Magnetostrictive Material to customers worldwide.

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