Abstract: The invention relates to a copper-chromium-titanium-silicon-alloy, which consists essentially of 0.10 to 0.50% chromiun; 0.01 to 0.25% titanium; silicon; the remainder being copper and the usual impurities, wherein the silicon content (a) is more than 0.1-times of the titanium content, (b) when the titanium content is up to 0.099% the silicon content is limited by the equation:Silicon content (%)=0.05%+0.5 titanium content (%),and (c) when the titanium content is more than 0.099%, the silicon content is limited by the equation:silicon (%)=0.149%-0.5% titanium content (%).Because of its excellent properties, the alloy is used as a material for electronic components, in particular semiconductor carriers for transistors, integrated circuits or the like, for plug connectors and parts for electrical systems for cars.

Abstract: The invention relates to a copper-chromium-titanium-silicon alloy which consists of 0.1 to 0.5% chromium, 0.05 to 0.5% titanium and 0.01 to 0.1% silicon, the remainder comprising copper and usual impurities. Because of its excellent properties as regards electrical and thermal conductivity, mechanical strength, resistance to softening, homogeneity and flexibility, the alloy is employed as a material for electronic components, in particular semiconductor carriers for transistors, integrated circuits or the like, and parts for electrical systems for cars.