The anodized aluminium sheet 3mm comprises 1xxx, 3xxx, 5xxx, 7xxx series of aluminum alloys etc. Anodizing is a high-end process among surface treatments for aluminum sheets. Current methods for anodizing include direct, alternating, and pulse currents. Electrolyte types cover sulfuric acid, oxalic acid, chromic acid, mixed acid and sulfoorganic acid. The anodized aluminium sheet 3mm has a thin layer of oxide on the surface, the thickness of which ranges from 5 to 20μm. Hard films reaches 60 to 200μm. Classified by properties, there are common films, hard films, porcelain films, bright light-modifying layers and barrier layers for semiconductor action. Anodized aluminum sheets have much better performances in hardness, wear resistance, corrosion resistance and insulation.

In detail, the anodized aluminium sheet 3mm has the following advantages. The first is good workability. It’s of medium hardness, suitable for bending and continuous heavy punching. There’s no need of complicated surface treatment before further manufacturing, which greatly shortens production periods and reduces cost. Second, it has excellent weather resistance. Aluminum sheets with standard anodized films (3μm thick) display perfect resistance against fading, corrosion, oxidizing and rust in indoor environment. Those with thick films (10μm) do not changes color after long-term exposure to sunshine in the open. Neither do they get corrosive after being placed in strong salt fog for thousands of hours. Third, the anodized aluminium sheet 3mm gives a strong metal sense. Hard surface and natural silver color highlight its sense as a modern metal. Fourth, the sheet is of high-grade fire-proof and stain-proof level. It does not catches fire or gives off toxic gases even at a high temperature of 600 degrees. Stains or marks can be removed off its surface easily. Last but not least, the sheet covers a wide range of application. It serves as top materials for aluminum strip ceilings, wall cladding, composite panels, anti-fire boards, honeycomb panels and housings for domestic appliance, furniture or cupboards.