| 摘要 |
{Problems} To provide: a copper alloy sheet material in which a balance is achieved among high yield strength, controlled Young's modulus, and satisfactory electrical conductivity; a connector using the copper alloy sheet material, and a method of producing the copper alloy sheet material. {Means to solve} A copper alloy sheet material, having an alloy composition containing at least one of Ni and Co in an amount of 1.80 to 8.00 mass% in total, Si in an amount of 0.40 to 2.00 mass%, and at least one element selected from the group consisting of Sn, Zn, Ag, Mn, P, Mg, Cr, Zr, Fe, and Ti in an amount of 0.000 to 2.000 mass% in total, with the balance being copper and unavoidable impurities, wherein the major axis of the grains in the matrix is 12 µm or less; and wherein the orientation density of the {110} <001> orientation is 4 or more, and the orientation density of the {110} <112> orientation is 10 or more; a connector using thereof; and a method of producing the copper alloy sheet material. |
