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Qingdao Jero Steel Co., Ltd.
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AA1050 AA1070 Aluminum Alloy Coil Used For Lamp Reflector
Aluminum alloy coils are widely used in manufacturing lamp reflectors (for LED lights, spotlights,
streetlights, etc.) due to their high reflectivity, lightweight properties, corrosion resistance, and
excellent formability.
| Alloy Grade | Main Composition | Key Advantages |
| AA1070/AA1050 | Pure aluminum (Al≥99.7%) | Highest reflectivity (≥85%), easy to process, low cost |
| AA3003 | Al-Mn (Mn 1.0-1.5%) | Good reflectivity (80-83%), stronger than pure aluminum |
| AA5052 | Al-Mg (Mg 2.2-2.8%) | Excellent corrosion resistance, suitable for outdoor use |
| AA6061 | Al-Mg-Si (T6 tempered) | High strength, heat-resistant, anodizable |
Key Advantages
♦ Superior Optical Performance
Exceptional reflectivity: Untreated pure aluminum (AA1050) achieves >85% light reflectance,
reaching 90-95% with polishing/coating
Precise light control: Excellent ductility enables complex parabolic designs for accurate beam
direction
♦ Outstanding Thermal Management
High thermal conductivity (237W/m·K) effectively dissipates LED heat.
Wide temperature tolerance (-50°C to 250°C) for high-power applications.
♦ Optimal Strength-to-Weight Ratio
Low density (2.7g/cm³) - 65% lighter than stainless steel.
Tensile strength up to 210-280MPa (AA5052) for structural integrity.
♦ Excellent Formability
Ultra-thin processing capability (minimum 0.05mm) for miniaturization
Supports multiple forming methods (stamping, spinning, bending) with >98% yield rate.
♦ Enhanced Environmental Resistance
Natural oxide layer provides 1000+ hours salt spray resistance (AA5052)
Anodized surface hardness reaches HV500 (5× wear resistance improvement)
Application Examples
LED downlight reflectors: AA1050 with mirror polishing for maximum brightness.
Streetlight reflectors: AA5052 with anodizing for weather resistance.
Automotive headlight reflectors: AA6061 spun + vacuum-coated for precision optics.
Our Company Advantages
• All the melting and holding furnaces are supplied by GAUTSCHI (Switzerland) Company.They
improve the quality of Aluminum alloy slab which can guarantee Aluminium alloy products with
high performance.
• 1+1+4 hot rolling mills and 1+5 hot rolling mills from SMS Group (Germany). All the hot finishing
rolling mills adopt the CVC flatness control technology, which can produce hot-rolled coils and sheets
with ideal flatness.
• 6 sets of cold rolling mills from SMS Group (Germany). All these mills are applied with SMS patent
6-High CVC technology and are the most advanced cold rolling mills in the world currently.