Alloy sheet for shadow mask and method for manufacturing thereof.

摘要

An alloy sheet containing Fe, Ni and Cr has an average austenite grain size of 15 to 45 mu m and a degree of mixed grain for austenite grain size of 50% or less; said alloy sheet has a gathering degree of {331} plane on a surface of said alloy sheet being 35% or less, that of {210} plane 20% or less and that of {211} plane 20% or less; said degree of mixed grain is expressed by an eqution of (¦0.5 Dmax - D¦/D) x 100 (%), where D is an average austenite grain size, and Dmax is a maximum austenite grain size in said alloy sheet. A method for manufacturing an alloy sheet for a shadow mask comprising the steps of (a) hot-rolling, (b) annealing of hot-rolled sheet, (c) cold-rolling, (d) recrystallization annealing, (e) finish cold-rolling, (f) stress relief annealing and (g) annealing before press-forming.