| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper alloy sheet excellent in strength, conductivity and bending workability.SOLUTION: A copper alloy contains 0.10-0.50% Cr, 0.010-0.30% Ti, 0.01-0.10% Si, and the balance being copper and inevitable impurities, wherein a mass ratio of the Cr content and the Ti content satisfies the relation: 1.0≤(Cr/Ti)≤30, a mass ratio of the Cr content and the Si content satisfies the relation: 3.0≤(Cr/Si)≤30. When crystal orientation of the copper alloy is measured by an FESEM-EBSP method, the copper alloy has an aggregate texture having the total average area ratio in Brass orientation {011}<211>, S orientation {123}<634>, and Copper orientation {112}<111> of 40-70%. |
