It is understood that Al-SC alloy, as the exclusive industrial production and the most characteristic high value-added aluminum alloy product of Dongxiao Company, has been widely used in the aviation field. It is one of the products with high added value and wide market application prospect in the company's high-tech products. The research on product performance upgrading and process optimization has always been the key research and development direction of the company. The study on the optimization of alloy composition can greatly shorten the development cycle and the high input of raw materials containing SC, and provide strong technical support for the comparative evaluation of the comprehensive properties of the subsequent alloy sheet.