Al-Mg-Mn Alloy 3004 Aluminium Coated Sheet For Building Curtain Wall
3004 series alloy (Al-Mn-Mg system) that undergoes surface cleaning, chemical pretreatment,
and coating application (typically with high-performance PVDF fluorocarbon or polyester paints)
followed by high-temperature curing.
Primarily used for:
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Curtain walls
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Roofing systems
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Architectural decoration
Key Characteristics of 3004 Aluminum Coil
Mechanical Properties
Tensile strength: 180-240 MPa (H34 temper reaches ≥240 MPa)
Elongation: ≥8% (H34), excellent for stamping and forming
Corrosion Resistance
Mn and Mg elements enhance atmospheric/rain corrosion resistance
Formability
Excellent bendability and deep-drawing capability for complex facade shapes
Common Tempers
| Temper | Characteristics | Typical Applications |
| H34 | Half-hard, high strength, good formability | Curtain wall panels, 3D cladding |
| H44 | Enhanced corrosion resistance, moderate strength | Coastal/high-humidity areas |
| O (Annealed) | Soft, superior deep-drawing capability | Special curved designs (less common) |
Performance Advantages for Curtain Walls
♦ Lightweight
Density: 2.7g/cm³ (65% lighter than steel), reducing structural loads
♦ Aesthetic Flexibility
Custom PVDF colors (metallic, woodgrain effects) with UV resistance (ΔE<3 after 15 years)
♦ Weather Resistance
Stable performance across -40℃ to 80℃ with no cracking/deformation
Notable Project Applications
✅ Skyscrapers: Shanghai World Financial Center (decorative elements)
✅ Airports: Beijing Daxing Airport (curved sunshades)
Production Range
| Thickness Range | 0.20 - 5.0mm |
| Width Range | Max. 2700mm |
| Alloy | 1050,1060, 3003, 3004,3105,5052 |
| Paint System | PE, SMP, PVDF |
| Color Options | RAL color or as the sample |
Company Advantages
Advanced Equipment
• German SMS Group fully automated coating lines with ±0.01mm thickness precision,
Line Speed: 120m/min (20% faster than industry average data)
• MES system enables real-time production monitoring with ≥99.3% product qualification rate
• Multi-spectral imaging detects micro-defects as small as 0.02mm² with 99.8% recognition accuracy
Technology Patents
♦ Anti-Static Color Aluminum Coil and Continuous Production System
♦ Chromium-Free Passivation Solution for Color-Coated Aluminum Coils and Preparation Method
♦ Production Process for High Solar-Reflectance Color Aluminum Coils
♦ Method for Preparing 3D Wood Grain Aluminum Coil Based on Nanoimprint Technology
♦ Low-Temperature Curing Technology
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Al-Mg-Mn Alloy 3004 Aluminium Coated Sheet For Building Curtain Wall Images
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