1. Structural strength and stability
Corrugated aluminum plate
Compression/bending performance: The corrugated structure of the aluminum plate enhances rigidity through geometric shapes, and the bending strength is significantly improved, which is suitable for large-span building aluminum curtain walls and industrial equipment shells;
Flatness: After the corrugated core of the aluminum three-dimensional plate is combined with the panel, it can avoid high-temperature deformation and support large-size panels (such as curtain walls above 10㎡).
Flat aluminum plate
Basic bearing capacity: Thin plates (0.3-2.0mm) are easily deformed due to external forces or temperature differences, and need to rely on keel reinforcement, which limits the application of large plates;
Processing adaptability: Flat aluminum plates are easier to perform complex processes such as bending and punching, and are suitable for customized decorative design.
2. Functional differences
Insulation and energy saving
The honeycomb or three-dimensional core layer of the corrugated aluminum plate achieves insulation through air barrier, reducing air conditioning energy consumption in summer (such as aluminum three-dimensional plate can reduce 40% heat transfer);
Flat aluminum plate requires additional insulation layer (such as polyurethane filling), which increases material and construction costs.
Sound insulation and environmental protection
The closed honeycomb structure of the corrugated aluminum plate can absorb more than 60% of sound waves, which is suitable for high-noise environments such as airports and theaters;
Flat aluminum plate sound insulation relies on composite structure, and the recovery rate is high but the original performance is weak.
3. Cost and maintenance
Initial investment
The unit price of corrugated aluminum plate is higher (such as aluminum three-dimensional plate is 30%-50% more expensive than ordinary aluminum plate), but its long life (25-50 years) reduces the full cycle cost;
Flat aluminum plate has a lower unit price (about 80-150 yuan/㎡), but requires frequent maintenance (such as replacing the coating every 5 years). Adaptability to special scenarios
Corrugated aluminum sheets have better weather resistance in areas with high salt fog and strong ultraviolet rays (e.g., fluorocarbon coated corrugated sheets have a lifespan of up to 30 years);
Flat aluminum sheets are prone to brittle cracks and oxidation spots in low temperature or high humidity environments and require additional protective treatment.
4. Recommendations for applicable scenarios
Demand priority Recommended sheet type Typical application examples
High strength and durability Corrugated aluminum sheet Airport ceiling, coastal factory exterior wall
Low cost and decorative Flat aluminum sheet Indoor ceiling, art installation surface
Energy saving and environmental protection Honeycomb/three-dimensional corrugated aluminum sheet Green building curtain wall, data center insulation layer
Note: There is no absolute advantage or disadvantage between the two, and the choice needs to be made based on load requirements, environmental conditions and budget. For example, high-rise building curtain walls prefer corrugated aluminum sheets (stronger wind pressure resistance), while temporary exhibition halls can choose flat aluminum sheets (cost-sensitive scenarios)
