Wieland-werke Ag

Andrea Kaeufler

Hans-Achim Kuhn

Jochen Aufrecht

Stefan Gross

The invention relates to a copper alloy, composed of (in wt %): 51.8 to 84.0% Cu, 15.5 to 36.0% Zn, 0.35 to 3.0% Sn, 0.12 to 1.5% Fe, 0.02 to 1.0% P, optionally also 0.1 to 2.0% Al, optionally also 0.05 to 0.7% Si, optionally also 0.05 to 2.0% Ni, optionally also respectively 0.1 to 1.0% Mn, Co, optionally also respectively 0.01 to 1.0% As, Sb, and unavoidable contaminants, wherein more than 95% of the structure consist of &#x3b1;-mixed crystal, in which at least iron phosphides and/or iron are embedded as deposition particles, which can be used for metallic articles in breeding organisms living in seawater.

Copper alloy

A copper alloy subjected to a thermo-mechanical treatment and composed of (in wt %) 15.5 to 36.0% Zn, 0.3 to 3.0% Sn, 0.1 to 1.5% Fe, optionally 0.001 to 0.4% P, optionally 0.01 to 0.1% Al, optionally 0.01 to 0.03% Ag, Mg, Zr, In, Co, Cr, Ti, Mn, optionally 0.05 to 0.5% Ni, the remainder being copper and unavoidable contaminants, wherein the microstructure of the alloy is characterized in that the proportions of the main texture orientations are at least 10 vl % copper orientation, at least 10 vl % S/R orientation, at least 5 vl % brass orientation, at least 2 vl % Goss orientation, at least 2 vl % 22RD-cube orientation, at least 0.5 vl % cube orientation, and finely distributed iron-containing particles are contained in the alloy matrix.

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Neu-Ulm, Germany

Andrea Kaeufler