Low alloy copper-based alloys are mainly used as conductive material in the field of electrical engineering. However, given a good electrical conductivity, they are characterized by low mechanical strength. Due to a low alloy content of currently used copper-magnesium, alloys rank among not precipitable homogeneous solid solutions. As a consequence, increases in strength can only be realized by means of solid solution strengthening and strain hardening. Up to now, the possibility of precipitation hardening remains largely untapped. In order to examine this potential for optimization regarding higher strength and enhanced conductivity, samples with differing Mg contents are prepared and systematically heat treated. This research work has the long-term objective of leaving the laboratory scale in order to make precipitable copper-magnesium alloys applicable for industry.