China Ni42cr6 Expansion Alloy Strip Glass Sealed Alloy

Ni42Cr6 Fe-Ni-Cr Glass Sealed Alloy StripNi42Cr6, 4 j47, 4 j49 at 20 ~ 400 degrees Celsius temperature range, with the expansion coefficient of similar soft glass, used for matching with corresponding soft glass sealing.This kind of alloy containing chromium, after oxidation treatment, the alloy surface generated very dense oxide fiEngine & Part lm, combined with matrix and firm, and soft glass and invasive good.Therefore, to get the sealing side of high strength.Is an important sealing structure in electric vacuum industry material.Chemical Composition in %, InvarbrandChemical compositionNiCrFeCPMnBAlSiS≤Ni42Cr641.5~42.55.4~6.3Bal0.050.020.25-0.20.30.024j4746.8~47.80.8~1.4Bal0.050.020.40--0.30.024j4946.0~48.05.0~6.0Bal0.050.020.400.02-0.30.02
Basic physical constants and mechanical properties of the alloy:
brandDensity g / cm3resistivityCurie pointNi42Cr68.150.92Drying Machine 2704j478.190.554004j498.180.90340Typical expansion character(10 -6 / ºC )Temperature range20~10020~20020~30020~40020~50020~40020~55020~600Expansion coefficient6.87.07.79.711.73.211.712.2
Varieties Steel typeSpecifications
mmPrecision
alloyResistance Alloys for electrical heatingSuper alloyWelding wireCorrosion resistant
alloyRodshot rolling rodsΦ8~38mmavailableavailableavailableCold-drawn rods≤50mmavailableavailableavailableForged rodsΦ38~350mmavailableavailableavailableWiresRound wiresΦ0.3~8mmavailableavailableavailableavailableavailableNon-circle wiresNegotiationavailableavailableavailableStripsCold rolling0.15~4x200mmavailableavaHeating, Refrigeration & Temperature Control ilableavailableavailableHot rolling4~22x200mmavailableavailableavailableavailablePlatesCold rolling0.5~4x1000x2000mmavailableavailableavailableHot rolling4~22x1000x2000mmavailableavailableavailabletubesΦ4~63x0.5~5mmavailableavailableExecutive standard: GB, GJB, HB, YB, ASTM, AMSE, negotiation and so on.
Ni42Cr6 alloy is glass sealed alloy FeNiCr departments on behalf of the brand.The group 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 meOptical Lens & Instrument tal anElectronics Stocks d 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.