Al-Mg-Mn Alloy 3004 Aluminum Siding Coil For 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:

• Curtain walls (weather-resistant, UV-proof)

• Roofing systems (lightweight, corrosion-resistant)

• Architectural decoration (versatile colors/finishes, easy fabrication)

Key Characteristics of 3004 Aluminum Coil
3004 is an Al-Mn-Mg series alloy (typically supplied in H34/H44 tempers) that, when color-coated,
exhibits:

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

2 kinds export forms

coil and sheet , we can produce 1800mm ultra-wide at most for the coil.

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

Cost Efficiency

Lower lifecycle cost vs stainless steel/zinc; minimal maintenance (cleaning only)
Notable Project Applications

✅ Skyscrapers: Shanghai World Financial Center (decorative elements)

✅ Airports: Beijing Daxing Airport (curved sunshades)

✅ Commercial Complexes: Parametric facade systems

Production Range

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