| 摘要 |
This invention provides, as a means of securing magnetic shield properties for a semi-tension mask and precluding color irregularity or mislanding on the phosphor due to beam drift, a Fe-Ni alloy for semi-tension mask comprising, in mass percentage (%), from 34 to 45% Ni, from 0.01 to 0.5% Mn, and the balance Fe and unavoidable impurities, said alloy being such that a sheet obtained after final cold rolling has an alpha(111)+(220), said sum of the X-ray intensity ratio of (111) plane and (220) plane in the rolled surface represented by Formula 1of no less than 15%. The invention also provides a semi-tension mask of the alloy, and a color picture tube using the semi-tension mask.
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