Abstract: A material for a shadow mask, characterized in that it has a chemical composition: C=0.0030 wt %, Si=0.03 wt %, Mn: 0.1 to 0.5 wt %, P=0.02 wt %, S=0.02 wt %, Al: 0.01 to 0.07 wt %, N=0.0030 wt %, B: an amount satisfying 0.5?B/N?2, and balance: Fe and inevitable impurities, and can form a shadow mask having a coercive force Hc of 90 A/m or less; and a method for producing the material, characterized in that use is made of a raw material having the above chemical composition, the finishing temperature in hot rolling is lower than Ar3 point by O to 30° C., the coiling temperature is 650 to 700° C., and the rolling reduction percentage in the final rolling (secondary cold rolling) is 30 to 45%. The material produced by the method exhibits magnetic characteristics being uniform in a coil and excellent as described above.

Abstract: A subject of the present invention is to provide for a shadow mask material for a color picture tube with excellent tensile strength and excellent high temperature creep strength, a shadow mask made of the shadow mask material and a color picture tube with the shadow mask. Material for a shadow mask is made from low carbon steel containing manganese of equal or more than 0.60 wt % and aluminum of 0.002 to 0.12 wt %. A shadow mask is made of the material and the shadow mask is installed in a picture image tube.

Abstract: A material for a shadow mask, characterized in that it has a chemical composition: C=0.0030 wt %, Si=0.03 wt %, Mn: 0.1 to 0.5 wt %, P=0.02 wt %, S=0.02 wt %, Al: 0.01 to 0.07 wt %, N=0.0030 wt %, B: an amount satisfying 0.5≦B/N≦2, and balance: Fe and inevitable impurities, and can form a shadow mask having a coercive force Hc of 90 A/m or less; and a method for producing the material, characterized in that use is made of a raw material having the above chemical composition, the finishing temperature in hot rolling is lower than Ar3 point by O to 30° C., the coiling temperature is 650 to 700° C., and the rolling reduction percentage in the final rolling (secondary cold rolling) is 30 to 45%. The material produced by the method exhibits magnetic characteristics being uniform in a coil and excellent as described above.

Abstract: A subject of the present invention is to provide for a shadow mask material for a color picture tube with excellent tensile strength and excellent high temperature creep strength, a shadow mask made of the shadow mask material and a color picture tube with the shadow mask. Material for a shadow mask is made from low carbon steel containing manganese of equal or more than 0.60 wt % and aluminum of 0.002 to 0.12 wt %. A shadow mask is made of the material and the shadow mask is installed in a picture image tube.