It is a well-known fact that the mechanical properties of metals depend on their microstructure and chemical composition. These parameters coming from previous processes of casting, forming and thermal treatment to which the metal has been submitted. Depending on their concentration, impurities in a metal can remain in solid solution (substitution or insertion), or precipitate. As a matter of fact regarding mechanical properties, the presence of impurities in metals has consequences in the possible increase or decrease of the critical limits of resistance of the material (flow and rupture stresses), as well as in the increase or decrease in ductility. In the case of copper, the literature offers numerous references about the effects of impurities on mechanical properties. Moreover, the impurities may cause an increase in temperature of recrystallization of copper or an embrittlement, principally because segregation and precipitation at grain boundaries, but its complex and non-linear effects have not been fully characterized. - In the last decades, despite the fact that the technological progress of the processes of manufacturing rods and wire drawing has enabled increased drawing speed and integration of in-situ annealing, qualification tests of about 40 years old, are still used in the wire rod industry. Therefore, from a scientific and technical perspective, studies are needed, with regard to the transformations that occur on copper products of origin (anodes and cathodes), and establish their relationship with the derived products, wire rod and others. - Supported by Codelco Chile, the intention of this work was to establish a methodology that allows a mechanical, micro structural and chemical traceability of copper products. After some previous experiments on coppers of cathodes and wire rods, an attempt to follow a protocol to ensure traceability among batches of cathodes and their corresponding stocks of wire was developed. The microstructural and mechanical changes that occur from cathodes to rods was analyzed with the objective to determine the effects of impurities, on the mechanical behavior. - It is observed that copper from cathodes with a low impurity content shows a more extended homogeneous deformation in tension than that from their corresponding 8 mm diameter wire rods. The manufacturing process that transforms the cathode into wire rod changes the micro structure of the material (grain size and texture, formation of copper oxides and segregations of Pb, S,...) and thus the mechanical properties. An extension of the analysis involving the results of industrial qualifications through the rapid elongation test is also presented.