Aviation materials are a general term for materials used in the manufacture of aircraft, aeroengines and their accessories, instruments and accompanying equipment. They usually include metal materials (structural steel, stainless steel, superalloys, non-ferrous metals and alloys, etc.), organic polymer materials (rubber, plastics, transparent materials, coatings, etc.) and composite materials. According to ICF statistics, aluminum and steel are the most used materials in aviation manufacturing, accounting for 48% and 22% respectively; The value proportion of titanium alloy and aluminum alloy is the highest, accounting for 27% and 26% respectively.