Is there any difference between aluminum and aluminum?

Aluminum (metallic element)

Silvery white light metal. It's malleable. Commodities are often made in rod, sheet, foil, powder, ribbon and filamentous form. In moist air can form an oxide film to prevent metal corrosion. The aluminum powder heats up in the air and burns violently, creating a blinding white flame. Soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, insoluble in water. Relative density 2.70. Melting point is 660 ℃. The boiling point of 2327 ℃. Aluminum is the most abundant metal element in the Earth's crust, second only to oxygen and silicon. The development of three important industries, aviation, construction and automobile, require material characteristics unique to aluminum and its alloys, which greatly facilitates the production and application of this new metal aluminum. It is widely used.

Aluminum alloy is one of the most widely used non-ferrous structural materials in industry. It has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welding structure of aluminum alloy is increasing day by day, so the research on welding property of aluminum alloy is also in-depth. At present, aluminum alloy is the most widely used alloy.