3105 aluminum sheet belongs to the 3000 series aluminum-manganese alloys, with manganese as the primary alloying element. Compared with 3003 aluminum, 3105 offers slightly higher strength while maintaining excellent formability and corrosion resistance, making it a popular choice for architectural and general-purpose applications.
Specifications
| Parameter | Description |
|---|---|
| Alloy | 3105 |
| Chemical Composition (%) | Al ≥ 98.9, Mn 0.3 – 0.8, Mg ≤ 0.8, Cu ≤ 0.30, Si ≤ 0.60, Fe ≤ 0.70, Zn ≤ 0.40, Others ≤ 0.05 |
| Temper | O, H12, H14, H16, H18, H22, H24 |
| Thickness Range | 0.2 – 6.0 mm (customizable) |
| Width (mm) | 20 – 2000 |
| Length (mm) | 2000 – 6000 |
| Surface Finish | Mill Finish, Bright, Brushed, Coated, Film Laminated (optional) |
| Standard | ASTM B209 / EN AW-3105 / GB/T 3880 |
Description
Features
- Higher Strength than 3003
Improved mechanical performance for structural and decorative uses.
- Excellent Corrosion Resistance
Suitable for outdoor and atmospheric environments.
- Good Formability
Ideal for bending, stamping, rolling, and general fabrication.
- Good Thermal Conductivity
Applicable to heat transfer and cooling-related applications.
- Excellent Weldability
Compatible with common welding methods.
- Good Surface Finishing Performance
Well-suited for coating, painting, anodizing, and embossing.
Typical Applications
- Roofing sheets and wall cladding.
- Curtain wall panels and architectural decoration.
- Mobile homes and prefabricated buildings.
- Household appliances and electrical enclosures.
- Signboards and advertising panels.
- General industrial fabrication.
