Aluminium Sheet 1050, 1060, 1070 3003 for Traffic
Aluminium sheets produced from alloys 1050, 1060, 1070, and 3003 are widely used across various industries, including automotive and traffic signage. These alloys deliver excellent corrosion resistance, formability, and medium strength, making them ideal for traffic-related applications such as traffic panels, signboards, and vehicle components exposed to environmental elements.
Alloy Highlights
| Alloy | Primary Features | Strength Level | Corrosion Resistance | Formability |
|---|---|---|---|---|
| 1050 | Very high purity, excellent corrosion resistance | Low | Excellent | Excellent |
| 1060 | High chemical purity with good workability | Low | Excellent | Excellent |
| 1070 | Ultra-high purity aluminium, soft and ductile | Very Low | Excellent | Excellent |
| 3003 | Alloyed with manganese, higher strength than 1xxx series | Medium | Good | Very Good |
Chemical Composition (% by Weight)
| Element | 1050 Max | 1060 Min | 1060 Max | 1070 Min | 1070 Max | 3003 Max |
|---|---|---|---|---|---|---|
| Aluminium (Al) | 99.5 min | 99.6 min | — | 99.7 min | — | Balance |
| Copper (Cu) | 0.05 | — | — | 0.05 | — | 0.20 - 0.6 |
| Iron (Fe) | 0.4 | 0.35 | 0.7 | 0.3 | 0.7 | 0.7 |
| Manganese (Mn) | 0.05 | 0.03 | 0.12 | 0.06 | 0.15 | 1.0 -1.5 |
| Silicon (Si) | 0.25 | 0.10 | 0.30 | 0.15 | 0.35 | 0.6 |
| Zinc (Zn) | 0.10 | — | 0.10 | — | 0.10 | 0.10 |
| Others | 0.15 max | 0.20 max | 0.20 max | 0.15 max | 0.15 max | 0.15 max |
Technical Specifications
| Specification | 1050 | 1060 | 1070 | 3003 |
|---|---|---|---|---|
| Density (g/cm³) | 2.71 | 2.71 | 2.71 | 2.73 |
| Tensile Strength (MPa) | 40 - 50 | 45 - 55 | 40 - 50 | 130 - 180 |
| Yield Strength (MPa) | 22 - 28 | 25 - 35 | 22 - 28 | 75 - 145 |
| Elongation (%) | 35 - 45 | 30 - 40 | 30 - 40 | 20 - 35 |
| Thermal Conductivity (W/m·K) | ~235 | ~220 | ~220 | ~160 |
| Melting Point (°C) | 650 | 650 | 650 | 600 - 650 |
| Formability | Excellent | Excellent | Excellent | Very Good |
| Weldability | Excellent | Excellent | Excellent | Good |
| Corrosion Resistance | Excellent | Excellent | Excellent | Good |
Features of Aluminium Sheets for Traffic
Lightweight Yet Durable
Aluminium sheets from 1050 to 3003 series offer an excellent strength-to-weight ratio. Notably, 3003 provides enhanced mechanical properties due to manganese alloying, making it robust for traffic signs subjected to weather stresses.Superior Corrosion Resistance
High aluminium purity ensures resistance to oxidation and corrosion, critical for traffic-related applications exposed to rain, sunlight, and roadside pollutants.Excellent Formability
Easy to cut, bend, and shape for customized traffic panel designs. Alloys such as 1050 and 1060 have exceptional ductility that supports intricate signage manufacturing processes.High Reflective Surface Finish
The shiny and smooth surface makes these sheets ideal for reflective road sign panels, aiding in nighttime visibility and traffic safety.Welding Capabilities
Ease of welding allows portable assembly for traffic sign installations or vehicle body components.
Applications in Traffic Industry
| Application | Preferred Alloy | Description |
|---|---|---|
| Road Signage and Plates | 1050, 1060, 1070 | Excellent corrosion resistance combined with formability enables durable, weather-proof signboards. |
| Traffic Control Panels | 3003 | Increased strength alloy & corrosion resistance for heavily used traffic control devices & frames. |
| Roadside Guide and Instructional Signs | 1050, 1060 | Large surface areas needing high reflectivity and UV resistance. |
| Vehicle Panels and Components | 3003 | Automotive/traffic vehicle bodywork parts requiring moderate strength and weather resistance. |
| Guardrails and Barricades | 3003 | Requires corrosion resistance and moderate strength for roadside infrastructure. |
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