3104 aluminum coil belongs to the 3000 series aluminum-manganese-magnesium alloys, featuring a higher magnesium content compared with 3003 and 3004. This alloy provides improved strength while maintaining good formability and corrosion resistance, making it especially suitable for packaging and structural applications that require higher mechanical performance.
Description
Features
- Aluminum–manganese alloy (Al–Mn)
Belongs to the 3xxx-series aluminum alloys, with manganese as the main alloying element and a small amount of magnesium for enhanced strength.
- Medium to high mechanical strength
Higher strength than 3003, suitable for structural, load-bearing, and decorative applications.
- Excellent corrosion resistance
Resistant to atmospheric, marine, and industrial environments, making it suitable for outdoor and coastal applications.
- Good formability and workability
Soft and ductile, easy to roll, bend, stamp, and deep-draw, suitable for thin-gauge processing and complex shapes.
- Good thermal and electrical conductivity
Supports heat dissipation and moderate electrical applications.
- Smooth and uniform surface finish
Ideal for anodizing, painting, coating, embossing, or film lamination.
- Good weldability
Compatible with TIG, MIG, and spot welding, ensuring reliable joints.
- Lightweight material
Low density helps reduce overall weight while maintaining durability and functionality.
Specifications
| Parameter | Description |
|---|---|
| Alloy | 3104 |
| Chemical Composition (%) | Al ≥ 95.6, Mn 0.8 – 1.4, Mg 0.8 – 1.3, Cu ≤ 0.25, Si ≤ 0.30, Fe ≤ 0.70, Zn ≤ 0.25, Others ≤ 0.05 |
| Temper | O, H12, H14, H16, H18, H19, H22, H24 |
| Thickness Range | 0.2 – 6.0 mm (customizable) |
| Width | Customizable (20 – 2000 mm) |
| Coil Weight | Customizable |
| Inner Diameter (ID) | 150 / 300 / 505 mm |
| Surface Finish | Mill Finish, Bright, Brushed, Coated, Film Laminated (optional) |
| Standard | ASTM B209 / EN AW-3104 / GB/T 3880 |
Typical Applications
- Architectural and building applications
Used for roofing, wall cladding, ceiling panels, handrails, and decorative sheets due to excellent corrosion resistance and surface finish.
- Transportation and automotive parts
Suitable for truck and railway components, automotive panels, and lightweight transport structures where medium strength is required.
- Heat transfer and thermal applications
Applied in heat exchangers, cooling fins, and other components requiring good thermal conductivity.
- Chemical and industrial equipment
Suitable for tanks, containers, covers, and protective panels in mild chemical environments.
- Signage and decorative products
Commonly used for nameplates, signboards, reflectors, and decorative panels after anodizing or coating.
- General fabrication and forming
Ideal for stamping, bending, rolling, and deep-drawing of thin sheets and non-structural components.
