Aluminum coils for architecture are a widely used aluminum material in the construction industry, primarily used for roofing, exterior walls, curtain walls, doors and windows, trims, canopies & column covers and other building components. Due to their lightweight, high strength, corrosion resistance, and ductility, aluminum coils have become one of the most commonly used materials in modern architecture.
Classification of architectural aluminum coils:
Based on different alloying elements, aluminum coils for architecture can be divided into several series, each with significantly different performance characteristics and suitable for different applications:
- 1000 series pure aluminum coils (e.g., 1050, 1060, 1070)
Composition: Aluminum content ≥99%, very few impurities.
Characteristics: Good ductility, strong corrosion resistance, low cost, but lower strength.
Applications: Billboards, wall decoration, roof insulation layers, non-load-bearing pipes, and other applications where high strength is not required.
Typical Case: 1060 aluminum coils, using composite rock wool and polyurethane core materials, achieve efficient thermal insulation and are widely used in building envelopes.
- 3000 series aluminum-manganese alloy coils (e.g., 3003, 3004)
Composition: Manganese content 1.0%-1.5%, with a dense oxide film on the surface.
Characteristics: Excellent rust resistance, with atmospheric corrosion resistance far exceeding that of pure aluminum; higher strength than pure aluminum, good formability and weldability.
Applications: Curtain walls, ceilings, door and window frames, kitchen equipment, water storage tanks, and other humid environments.
Typical Case: 3003 aluminum coils, due to their strong weather resistance, are the preferred material for building curtain walls and cold chain containers.
- 5000 series aluminum-magnesium alloy coils (e.g., 5052, 5083)
Composition: Magnesium content 3%-5%, low density, high tensile strength.
Characteristics: Excellent corrosion resistance, especially suitable for marine climates; good weldability, surface can be polished.
Applications: High-rise building curtain walls, bridge supports, pressure vessels (such as liquefied gas tanks), ship structural components, etc.
Typical Case: 5052 aluminum coils, due to their lightweight advantage, are commonly used in automobile body and aircraft fuel tank manufacturing.
Characteristics of aluminum coils for architecture:
- Lightweight and High-Strength:
Aluminum's density is only one-third that of iron. 5-series aluminum-magnesium alloys are lighter for the same area, possess excellent tensile strength, and are suitable for high-rise buildings and large-span structures.
Corrosion Resistance:
A dense oxide film naturally forms on the surface, resisting humid, acidic, and alkaline environments. 3-series and 5-series alloys are strengthened with alloying elements, resulting in even more outstanding corrosion resistance.
Ease of Processing:
Complex shapes can be formed through rolling, stamping, and bending processes to meet personalized needs for curtain walls, decorative components, etc.
Thermal and Electrical Conductivity:
Thermal conductivity is second only to silver and copper, suitable for heat sinks, solar collectors, etc.; excellent electrical conductivity makes it suitable for electrical equipment housings.
Aesthetics and Surface Treatment:
Aluminum coils can undergo anodizing, spraying, and coating treatments to enhance their decorative appeal. A variety of colors and surface effects are available to suit various architectural styles.
Environmental Protection and Sustainability:
No harmful substances are released during production, processing, and installation. High recyclability meets green building standards.
Application of architectural aluminum coil:
- Exterior wall decoration:
Aluminum coils can be used for decorating building facades, enhancing the building's aesthetics.
- Roofing materials:
Aluminum coils can be used to construct roofs, offering excellent waterproofing and weather resistance. Waterproofing, thermal insulation, and decoration are integrated.
- Window frames and doors:
Aluminum coils can be used to construct window frames and doors, providing excellent sealing and durability.
- Curtain wall systems:
Aluminum coils are commonly used in modern building curtain wall systems, providing a stable structure and an attractive appearance.
