Aluminum alloy data set. Aluminum alloy is the most widely used type of non-ferrous metal structure material in industry. It has been widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding and chemical industries. The rapid development of the industrial economy has increased the demand for aluminum alloy welded structural parts, which has made the research on the weldability of aluminum alloy intensified. At present, aluminum alloy is the most widely used alloy.