Aluminum wire is a kind of silver white light metal. It has ductility and expansibility. Commodities are often made into rods, sheets, foils, powders, belts and filaments. It can form an oxide film to prevent metal corrosion in humid air. Aluminum powder and aluminum foil can burn violently when heated in air and emit dazzling white flame. Soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solutions, insoluble in water. The relative density is 2.70. Melting point 660 ℃. Boiling point: 2327 ℃. Aluminum is the most abundant metal element in the earth's crust, ranking third only to oxygen and silicon. The development of aviation, construction and automobile industries requires that the material characteristics have the unique properties of aluminum and its alloys, which is greatly conducive to the production and application of this new metal aluminum.
