Copper based alloy for electrical and electronic parts excellent

Details Copper based alloy for electrical and electronic parts excellent Copper based alloy for electrical and electronic parts excellent

1995-02-10

1996-04-16

Ip, Sikyin

Alloys or metallic compositions

Copper base

Tin containing

420473, 148433, 148434, 148435, C22C 902

Patent

active

055080014

ABSTRACT:
A copper based alloy for use as a material for electrical and electronic parts has a chemical composition by weight, of 0.5 to 3% Ni, 0.1 to 0.9% Sn, 0.08 to 0.8% Si, 0.1 to 3 Zn, 0.007 to 0.25% Fe, 0.001 to 0.2% P, 0.001 to 0.2% Mg, 0.0001 to 0.001% C, and if required, further containing 0.001 to 0.3% at least one element of Cr and Zr, and the balance being Cu and inevitable impurities. The obtained copper alloy is excellent in electric conductivity, solder-exfoliation resistance when bent, high-temperature creep strength, and migration resistance, while being superior in hot workability and blankability to the conventional copper based alloy.

REFERENCES:
patent: 4750029 (1988-06-01), Futatsuka et al.
patent: 4971758 (1990-11-01), Suzuki et al.
patent: 5002732 (1991-03-01), Yamasaki et al.
patent: 5024814 (1991-06-01), Futatasuka et al.

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