3105 aluminum coil belongs to the 3000 series aluminum coil, it is an aluminum-manganese alloy (AL-Mn alloy). It is based on 98% pure aluminum with added elements such as manganese (0.3%-0.8%) and magnesium (0.2%-0.8%). It is manufactured through processes such as casting, rolling, and heat treatment. The core characteristic of aluminum coil 3105 is that it cannot be strengthened by heat treatment, but its mechanical properties can be improved through cold working (such as rolling and stamping). 3105 aluminium coil combines the advantages of lightweight, corrosion resistance, and easy processing, making it widely used in construction, packaging, home appliances, and other fields.
Specifications of 3105 Aluminum Coil:
Tempers: O (annealed), H12/H14/H16 (semi-hard), H18/H22/H24 (hard), H26/H28 (superhard), F (free), H111/H112
Thickness: 0.1mm-10mm (up to 500mm for some manufacturers)
Width: 100mm-2650mm
Length: 500mm-16000mm
Core Features and Advantages of 3105 Aluminium Coil:
- Corrosion Resistance
A dense oxide film forms on the surface, 3000 series aluminum coil offering superior corrosion resistance to 1060 aluminum alloy in atmospheric and freshwater environments. Suitable for outdoor construction and pipe insulation.
Resists corrosion from salt, alkali, and acid rain, resists the growth of toxic bacteria, and achieves Class B1 flame retardancy, meeting environmental standards.
- Lightweight and Strong
With a density of 2.73g/cm³, it weighs only one-third of steel, making it easy to transport and install. Tensile strength is 110-145 MPa, and yield strength increases with cold work hardening, making it suitable for structural parts requiring high strength.
- Processability
Excellent plasticity: High elongation in the annealed state allows for stamping and bending into complex shapes (such as blinds and bottle caps).
Excellent weldability: Compatible with gas and arc welding, facilitating assembly of structures such as pipes and curtain walls.
High surface quality: The flat surface after rolling allows for direct painting or anodizing for enhanced aesthetics.
- Functional Scalability
Can be painted with wood or stone grain to simulate natural textures. High-temperature baking creates a baked-on finish with minimal color variation. Polyester paints have a 10-year warranty, while fluorocarbon paints have a 20+ year warranty.
Excellent sound absorption properties make it suitable for noise reduction applications such as theaters and conference rooms.
Applications of 3105 Aluminum Coil:
- Architectural Decoration
Exterior walls/roofs: Lightweight reduces building loads, while corrosion resistance extends service life.
Curtain walls/gutters: Can be processed into complex shapes to enhance building aesthetics. Venetian Blinds: Excellent plasticity, allowing for custom angles and sizes.
- Packaging Industry
Bottle Caps: The mainstream material for wine, beverage, and cosmetic bottle caps, offering excellent sealing properties.
Tea Cans/Cake Trays: Moisture- and rust-resistant, ensuring food safety.
- Home Appliances and Electronics
Refrigerator/Air Conditioner Housings: Excellent heat dissipation and corrosion resistance.
Lamp Bases: Excellent conductivity (41%), allowing for precision machining.
- Special Environments
Nuclear Facilities: Radiation-resistant, suitable for control cabinets and protective covers.
Pipe Insulation: An alternative to galvanized iron, offering superior corrosion and rust resistance with a lifespan of over 10 years.
3105 aluminum coil, with its core advantages of corrosion resistance, lightweight construction, and ease of processing, is widely used in construction, packaging, home appliances, and other fields. With technological advancements and growing market demand, its cost-effectiveness will become even more prominent, making it an indispensable segment in the aluminum market.
