Copper alloy sheet material and method for producing the copper alloy sheet material

A method for producing a copper alloy sheet material, comprising:

• applying hot-rolling to a copper alloy;
• then,
• applying cold-rolling to the copper alloy;
• applying recrystallization-annealing to the cold-rolled copper alloy;
• then,
• applying final cold-rolling to the copper alloy,
• the copper alloy containing:
• 0.0005% by mass or more and 0.1% by mass or less of Ni, 0.0005% by mass or more and 0.1% by mass or less of Sn, 100 ppm or less of C, 800 ppm or less of O, 10 ppm or less of H, and 50 ppm or less of Ag, with a balance being Cu and impurities,
• wherein a total content of the Ni and the Sn is 0.001% by mass or more and 0.11% by mass or less, and
• when a content of the impurities is expressed as A to B (ppm) in consideration of a quantitative lower limit of each element (here, A is a total impurity content when a content of an element less than a quantitative lower limit is deemed 0 ppm, and B is a total impurity content when a content of the element less than the quantitative lower limit is deemed the quantitative lower limit of each element), A is 100 or less and B is 250 or less.