Patent ID: 9493858
Filing Date: 2016-11-15
CPC Classification: C22C

Claim Text:
1. A copper alloy, which was subjected to a thermomechanical treatment, consisting of, in wt. %: 28.5 to 31.5% Zn, 0.3 to 3.0% Sn, 0.55 to 0.7% Fe, optionally 0.001 to 0.4% P, optionally 0.01 to 0.1% Al, optionally 0.01 to 0.3% Ag, 0.01 to 0.3% Mg, 0.01 to 0.3% Zr, 0.01 to 0.3% In, 0.01 to 0.3% Co, 0.01 to 0.3% Cr, 0.01 to 0.3% Ti, and 0.01 to 0.3% Mn, optionally 0.05 to 0.5% Ni, the remainder being copper and unavoidable impurities, wherein the microstructure of the alloy is characterized in that the proportions of the main texture orientations are at least 10 vol.-% copper orientation, at least 10 vol.-% SIR orientation, at least 5 vol.-% brass orientation, at least 2 vol.-% Goss orientation, at least 2 vol.-% 22RD cube orientation, at least 0.5 vol.-% cube orientation, and finely distributed ferrous particles are contained in the alloy matrix.