ALUMINUM INGOTS

According to the national standard (GB/T 1196-2008), it should be called "remelting aluminum ingot", but everyone is used to calling it "aluminum ingot". It is produced by electrolysis of alumina-cryolite. After aluminum ingots enter industrial applications, there are two major categories: cast aluminum alloys and deformed aluminum alloys. Cast aluminum and aluminum alloys are aluminum castings produced by casting methods; deformed aluminum and aluminum alloys are aluminum processed products produced by pressure processing methods: plates, strips, foils, tubes, rods, profiles, wires and forgings. According to the national standard, "remelting aluminum ingots are divided into 8 grades according to chemical composition, namely Al99.90, Al99.85, Al99.70, Al99.60, Al99.50, Al99.00, Al99.7E, Al99.6E" (Note: the number after Al is the aluminum content). Some people call "A00" aluminum, which is actually aluminum with a purity of 99.7%, and is called "standard aluminum" in the London market.

Ordinary industrial pure aluminum is 1000 series aluminum ingots, with an aluminum content of up to 99.0%. Low strength, heat treatment cannot be further strengthened; but strong plasticity. Aluminum products have good corrosion resistance and weldability; after anodizing, the corrosion resistance of aluminum ingots is often improved, and a more beautiful surface layer can be obtained.