Key parameters for purchasing aluminum corrugated sheets
1. Core physical parameters
Material selection
Alloy series: Prefer 1 series (such as 1050, 1060) or 3 series (such as 3003, 3004) aluminum.
1 series: lightweight and low cost, suitable for short-term construction or low-corrosion environment (such as temporary roof);
3 series: Contains manganese elements to enhance corrosion resistance, suitable for high humidity, acid and alkali scenes such as chemical plants and coastal buildings.
Thickness range
The standard thickness is 0.2mm~2.0mm, and common specifications include:
0.6mm: light enclosure structure (such as temporary storage);
1.0mm~1.5mm: high-load scenes such as industrial plants and photovoltaic substrates.
Corrugated structural parameters
Wave height (H) and wave distance (P): directly affect the load-bearing and drainage performance:
Low wave type (H=18-25mm, P=76-210mm): lightweight and suitable for decorative walls or low strength requirements;
High wave type (H=35mm, P=125mm): large-span roof load-bearing capacity reaches 1.5kN/m².
Effective width: common specifications are 750mm, 840mm, and 900mm, which need to match the building modulus to reduce losses.
2. Performance and process parameters
Corrosion resistance
Select surface treatment process:
Roller coating process: paint film thickness ≥25μm, pass 48 hours salt spray test, life span 10-15 years;
Anodizing: improve surface hardness and weather resistance, suitable for industrial pollution environment.
Mechanical strength
Tensile strength range:
1 series aluminum plate: 55-95MPa (suitable for low load scenarios);
3 series aluminum plate: 110-285MPa (suitable for chemical plants, large span structures).
Applicable scenarios
Power plant/chemical plant: choose 3003 material + high wave type (such as YX35-125-750), corrosion-resistant and wind-resistant;
Commercial building: Prioritize fluorocarbon spraying process (200+ colors optional) with light wave type (such as YX18-76-836).
3. Certification and economic parameters
Industry standards
Ensure that fireproof and weather-resistant performance meet the standards.
Cost control
Unit price comparison: The price of 1 series aluminum plate is 15%-20% lower than that of 3 series, suitable for projects with limited budgets;
Loss rate: The matching degree of effective width and building modulus affects the overall cost (optimized utilization rate ≥95%)7.
Summary: The purchase of aluminum corrugated sheet requires comprehensive consideration of four core parameters: material, thickness, corrugated structure and surface process, and selection of an adaptation solution based on the application scenario (such as corrosion and load requirements). Prioritize verification of product test reports (such as salt spray test and tensile strength) to ensure performance reliability.
