The data on the study of mechanical properties of cylindrical specimens of Al alloy 6101 in different states under static tension at room temperature are presented. The specimens were tested after natural aging, artificial aging, and ECAP. The surface of fractures of these specimens was also investigated using an electron microscope, and a chemical analysis of elements on the surface of fractures was carried out. Basing on the performed study, it can be concluded that alloy 6101 shows the highest strength (ultimate tensile strength 350 MPa) after ECAP treatment in UFG state. It was confirmed due to the chemical analysis that destruction pores in this material originate on particles of secondary phases based on impurity iron.