1100 is industrial pure aluminum, the aluminum content (mass fraction) is 99.00%, and cannot be strengthened by heat treatment. It has high corrosion resistance, electrical conductivity and thermal conductivity, its density is small, and its plasticity is good. Various aluminum materials can be produced through pressure processing, but the strength is low. Other process performance is basically the same as 1050A. 1100 is usually used to require good forming and processing performance, high corrosion resistance, and does not require high strength, such as food and chemical handling and storage equipment, sheet metal products, hollow hardware processed by drawing cargo spinning, and welding combination keys , Reflectors, nameplates, etc.

1100 aluminum sheet and strip belong to the pure aluminum sheet series. Its strength is relatively low, and it has excellent ductility, formability, weldability and corrosion resistance; after anodizing, it can further improve the corrosion resistance and obtain a beautiful surface; but it cannot be strengthened by heat treatment. .