Aluminium sheet metal grades cover 1000 series pure aluminum to 8000 series alloy aluminium. Alloy aluminium sheet metal is to add various alloying elements (the main alloying elements are copper, silicon, magnesium, zinc, manganese, and the secondary alloying elements are nickel, iron, titanium, chromium, lithium, etc.) in the aluminum sheet processing process to improve the mechanics performance and chemical indicators of aluminium sheet metal. Alloy aluminum sheet metal has some special properties that pure aluminum sheet metal does not have, and is widely used in special environments, such as ships, refrigerators, molds, aerospace equipment and so on.
Compared with other metal materials, aluminium sheet metal grades has the following characteristics:
1, Low density: The density of aluminum sheet alloy is close to 2.7 g/cm3, which is about 1/3 of copper sheet.
2, High strength: Aluminum sheet alloy has high strength. After a certain degree of cold working, the strength of the aluminum sheet metal can be strengthened, and some grades of aluminium sheet metal can also be strengthened by heat treatment.
3, Good electrical and thermal conductivity: Aluminum sheet's electrical and thermal conductivity is second only to silver, copper and gold.
4, Good corrosion resistance: The surface of aluminum sheet metal is easy to naturally produce a dense and firm AL2O3 protective film, which can well protect the substrate from corrosion. Through artificial anodic oxidation and coloring, cast aluminum sheet alloy with good casting performance or deformed aluminum alloy with good processing plasticity can be obtained.
5, Easy processing: After adding certain alloying elements, cast aluminium sheet metal grades with good casting performance or deformed aluminum alloy with good processing plasticity can be obtained.