The metal material of the cans used for Coke/Sprite/small cans of tea, etc. is aluminum alloy. Cans are mostly made of tinplate. Aluminum alloy has superior performance compared to tinplate.
Most of the cans are made of 3104 aluminum alloy. 5182 aluminum alloy is mostly used for pull rings of cans.
5052/3104 aluminum alloy is mostly used for the lid/bottom material of pop cans.
What is the general specification of aluminum alloy used in cans?
5052 H19 Tensile strength/Mpa:270-330 Elongation/%≥5 Yield strength/Mpa:240-300 Thickness:0.2-0.36mm
3104 H19 Tensile strength/Mpa:270-320 Elongation/%≥5 Yield strength/Mpa:240-280 Thickness:0.2-0.36mm
5182 H19 Tensile Strength/Mpa:360-410 Elongation/%≥6 Yield Strength/Mpa:310-360 Thickness:0.25-0.5mm
Why are aluminum alloys used in cans?
Advantage 1: Lightweight Compared with tinplate, the density of aluminum alloy is one-third of that of iron. 1 Lightweight, heat-resistant, good conductivity, non-toxic and tasteless, good printing effect
Advantage 2: Anti-corrosion 3/5 series aluminum alloy is a typical anti-rust aluminum, strong anti-oxidation ability, can resist acid and alkali corrosion, durable and recyclable, economical and environmentally friendly
Advantage 3: 5182 aluminum alloy has silicon element, and the welding performance of gas welding, argon arc welding, spot welding and seam welding is very good
Advantage 4: Good machinability, very suitable for post-processing such as slitting and slicing
