Item specifice

1.Specification and Application

LIGHT GAUGE ALUMINUM FOIL

application:cigarette package, aseptic package, pouches, sachets

alloy:1235/8011/8079

temper:O

thickness&tolerance:0.006mm-0.009mm (±6%)

width&tolerance: 200mm-1650mm (±1mm)

mehanical properties: tensile strength (U.T.S)≥40Mpa, elongation≥1%

standard: GB/T3198 / ASTM-B209 /EN 546

3.Other Details

Chemical

Corrosion resistance can be excellent due to a thin surface layer of aluminium oxide that forms when the metal is exposed to air, effectively preventing further oxidation.The strongest aluminium alloys are less corrosion resistant due to galvanic reactions with alloyed copper.This corrosion resistance is also often greatly reduced by aqueous salts, particularly in the presence of dissimilar metals.

In highly acidic solutions aluminium reacts with water to form hydrogen, and in highly alkaline ones to form aluminates— protective passivation under these conditions is negligible. Also, chlorides such as common sodium chloride are well-known sources of corrosion of aluminium and are among the chief reasons that household plumbing is never made from this metal.

However, owing to its resistance to corrosion generally, aluminium is one of the few metals that retain silvery reflectance in finely powdered form, making it an important component of silver-colored paints. Aluminium mirror finish has the highest reflectance of any metal in the 200–400 nm (UV) and the 3,000–10,000 nm (far IR) regions; in the 400–700 nm visible range it is slightly outperformed by tin and silver and in the 700–3000 (near IR) by silver, gold, and copper.

Aluminium is oxidized by water at temperatures below 280°C to produce hydrogen, aluminium hydroxide and heat:2 Al + 6 H2O → 2 Al(OH)3 + 3 H2

This conversion is of interest for the production of hydrogen. Challenges include circumventing the formed oxide layer, which inhibits the reaction and the expenses associated with the storage of energy by regeneration of the Al metal.

4.Packaging and Delivery