Apr. 03, 2025
1050 aluminum belongs to the 1000 series aluminum alloys, which means it is essentially pure aluminum with a purity of at least 99.5%. It is known for its excellent corrosion resistance, high ductility, and high reflectivity. Due to its relatively low mechanical strength, it is typically used in applications where high strength is not the primary requirement, but good formability, conductivity, and surface appearance are important.
1050 aluminum (also known as 1050A) is a commercially pure aluminum alloy known for its high ductility, excellent corrosion resistance, and high reflectivity. It is widely used in applications where formability and conductivity are more critical than strength. Common applications include chemical processing equipment, food containers, building waterproof panels, lamp reflectors, and cable sheathing.
| Attribute | Parameter |
| Grade | 1050, AA1050A, A91050 |
| Alloy Series | 1xxx (Pure Aluminum Series, Aluminum Content ≥99.5%) |
| Element | Content (%) |
| Aluminum (Al) | ≥ 99.5 |
| Silicon (Si) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.05 |
| Magnesium (Mg) | ≤ 0.05 |
| Manganese (Mn) | ≤ 0.05 |
| Zinc (Zn) | ≤ 0.07 |
| Titanium (Ti) | ≤ 0.05 |
| Other Elements | ≤ 0.03 (individual) |
| Property | Parameter |
| Tensile Strength (MPa) | 105 – 145 |
| Yield Strength (MPa) | ≥ 85 |
| Elongation (%) | ≥ 12 |
| Brinell Hardness (HB) | 34 |
| Property | Parameter |
| Density (g/cm³) | 2.71 |
| Melting Point (°C) | 650 |
| Elastic Modulus (GPa) | 71 |
| Thermal Conductivity (W/m·K) | 222 |
| Coefficient of Thermal Expansion (×10⁻⁶/K) | 24 |
| Electrical Resistivity (Ω·m) | 0.0282 × 10⁻⁶ |
| Processing Method | Performance Description |
| Formability | Excellent (Cold working, deep drawing, stretching) |
| Weldability | Excellent (TIG, MIG, oxy-welding, spot welding possible) |
| Machinability | Fair (prone to tool adhesion due to softness) |
| Extrudability | Good |
| Anodizing Ability | Excellent (suitable for decorative and protective anodizing) |
1050 Aluminum Manufacturing Characteristics
1050 Aluminum Welding
1050 Aluminum Processing Characteristics
| State | Description |
| O (Annealed) | Soft state, suitable for high ductility applications |
| H12 | 1/4 Hard |
| H14 | 1/2 Hard (Most common) |
| H16 | 3/4 Hard |
| H18 | Full Hard |
Common States and Forms
| Thickness (mm / inch) | Width (mm / inch) | Length (mm / inch) |
| 0.5 – 6 mm (0.02" – 0.24") | 500 – 2000 mm (19.7" – 78.7") | 1000 – 6000 mm (39.4" – 236.2") |
| 6 – 25 mm (0.24" – 0.98") | 500 – 2500 mm (19.7" – 98.4") | 1000 – 12000 mm (39.4" – 472.4") |
| 25 – 100 mm (0.98" – 3.94") | 500 – 2650 mm (19.7" – 104.3") | 1000 – 16000 mm (39.4" – 629.9") |
| Thickness (mm / inch) | Width (mm / inch) |
| 0.1 – 3.0 mm (0.004" – 0.12") | 20 – 1600 mm (0.79" – 63.0") |
| Diameter (mm / inch) | Length (mm / inch) |
| 5 – 300 mm (0.2" – 11.8") | 1000 – 6000 mm (39.4" – 236.2") |
| Outer Diameter (mm / inch) | Wall Thickness (mm / inch) | Length (mm / inch) |
| 6 – 200 mm (0.24" – 7.87") | 0.5 – 10 mm (0.02" – 0.39") | 1000 – 6000 mm (39.4" – 236.2") |
| Industry | Specific Applications |
| Food & Beverage | Food packaging, aluminum foil, cookware, storage tanks |
| Construction & Decoration | Roofing, reflective panels, decorative plates |
| Electronics & Electrical | Bus bars, cable shielding, heat exchangers |
| Chemical & Pharmaceutical | Chemical containers, pharmaceutical packaging |
| Transportation | Vehicle body shells, ship structures |
Data provided is indicative and should not replace full specifications for design purposes.
Properties vary with temper, thickness, and production methods.
For complete specifications, refer to standards like BS EN 573-3 (composition) and BS EN 485-2 (mechanical properties).
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