3A21 aluminum foil is rust-proof aluminum, the strength is not high (only slightly higher than industrial pure aluminum), can not be strengthened by heat treatment, so cold processing methods are often used to improve its mechanical properties; It has high plasticity in the annealed state, good plasticity in semi-cold hardening, low plasticity in cold hardening, good corrosion resistance, good weldability and poor machinability.

3A21 aluminum foil is mainly used for low-load parts that require high plasticity and good weldability, working in liquid or gas media, such as fuel tanks, gasoline or lubricating oil conduits, etc.

5A05 aluminum foil is a rust-proof aluminum alloy, belonging to the Al-Mg alloy, can not be strengthened by heat treatment, low strength, and 5A03 alloy similar; Cold deformation can increase its strength, but decrease its plasticity. The plasticity of annealed state is higher, and the plasticity of semi-cold hardening state is acceptable. Good corrosion resistance and weldability; Poor machinability.

5A05 aluminum foil is mainly used in the manufacture of ships, aerospace, railway vehicles, automobiles, construction and other fields of structural parts and components.

1070 aluminum foil is industrial pure aluminum, containing 99.7% aluminum, also known as cathode aluminum plate.

Industrial pure aluminum has the general characteristics of aluminum, such as small density, good electrical and thermal conductivity, good corrosion resistance, high plasticity, good thermal conductivity and other advantages. Can be processed into plates, belts, foils and extruded products, can be gas welding, argon arc welding, spot welding.

1070 aluminum foil is mainly used to manufacture structural parts with specific properties, such as aluminum foil gaskets and capacitors, radiators, anti-corrosion insulation of charging piles, electronic product shells, vacuum tube isolation nets, etc.

7075 aluminum foil is a cold-treated forging alloy, high strength, high hardness, far better than soft steel.

7075 aluminum foil is one of the most powerful commercial alloys, general corrosion resistance, good mechanical properties and anode reaction. The fine grain makes the deep drilling performance better, the tool wear resistance is enhanced, and the thread rolling is more different from the weight. 7075 aluminum foil use: 7075 aluminum foil is mainly used in aviation fixtures, trucks, tower buildings, ships, pipelines and other buildings that need strength, weldability, and corrosion resistance.