| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper base alloy for electrical and electronic parts satisfying specification properties of ESH individual of C1940, maintaining heat resistance and having low magnetism, and to provide its manufacturing method.SOLUTION: A copper base alloy for electrical and electronic parts contains Fe of 2.1 mass% to 2.6 mass%, P of 0.015 mass% to 0.15 mass%, Zn of 0.05 mass% to 0.2 mass% and the balance Cu with inevitable impurities, and has a tensile strength of 505 MPa to 590 MPa, a Vickers hardness of 145 Hv to 170 Hv, a conductivity of 60% IACS or more and a maximum permeability of 1.045 to 1.060. |
