Aluminium alloy of high electric conductivity and high tensile strength and preparation method thereof

The invention relates to the technical field of the deep processing of aluminium alloy materials, in particular to aluminium alloy of high electric conductivity and high tensile strength and a preparation method thereof. The aluminium alloy of the high electric conductivity and the high tensile strength comprises the following components of, by weight, 0.3%-0.7% of silicon, 0.4%-0.6% of iron, 0.05%-0.15% of copper, 0.35%-0.8% of magnesium, 0.02%-0.04% of manganese, 0.05%-0.15% of zinc, 0.04%-0.08% of boron and the balance aluminium. The prepared aluminium alloy of the high electric conductivity and the high tensile strength has the advantages of being high in electric conductivity and good in hardness and tensile property, wherein the electric conductivity reaches 56.5%, the hardness (HRF) reaches 45 degrees, and the tensile property can reach 172.4 MPa.