Fe-Co-Ni alloy and use for the manufacture of a shadow mask
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app pub date -
Sep 21, 2005
filing date -
May 5, 1995
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Abandoned
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Abstract
Fe--Ni--Co alloy whose chemical composition contains, by weight: 32%.ltoreq.Ni.ltoreq.34%, 3.5%.ltoreq.Co.ltoreq.6.5%, 0%.ltoreq.Mn.ltoreq.0.1%, 0%.ltoreq.Si.ltoreq.0.1%, 0%.ltoreq.Cr.ltoreq.0.1%, 0.005%=C.ltoreq.0.02%, S.ltoreq.0.001%, 0.0001%.ltoreq.Ca.ltoreq.0.002%, 0.0001%.ltoreq.Mg.ltoreq.0.002%, the substantial remainder preferably being iron and impurities resulting from smelting; the chemical composition of the alloy furthermore satisfying the relationships: Co+Ni.ltoreq.38.5%, Co+0.5.times.Ni.gtoreq.20%, Co+5.times.Ni.gtoreq.165.5% and S.ltoreq.0.02.times.Mn+0.8.times.Ca+0.6.t- imes.Mg. Use of the alloy for the manufacture of a shadow mask for a display cathode ray tube.
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