What Is 1050 Aluminum Sheet 1050 Aluminum sheet is a popular pure aluminum sheet, of which the aluminium content is over 99.50% according to international standards. Therefore, it is of high plasticity, high corrosion resistance, good electrical conductivity and thermal conductivity, but it canâ??t be strengthened by heat treatment and its strength is very low. Find other types of aluminium sheets for sale. Advantages of 1050 Sheet Aluminum Because of simple manufacturing process, its price is much cheaper than any other kinds of aluminum alloy. 1. It offers the best correction resistance compared to any alloy group. 2. It is of high plasticity,, good electrical conductivity and thermal conductivity.