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Aluminum profiles are categorized based on cross-sectional shape, processing method, alloy series, and application scenarios, which directly determine their performance and use cases. Detailed classifications are shown in the following table:
| Classification Criterion | Specific Types | Core Characteristics | Typical Applications |
|---|---|---|---|
| Cross-Section Shape | Solid Profiles (Rods, Bars, Flat Bars) | No hollow structure, high structural stability, uniform stress | Mechanical shafts, fasteners, machining blanks, decorative trims |
| Hollow Profiles (Tubes, Pipes) | Light weight, high strength-to-weight ratio, material-saving | Architectural handrails, heat exchangers, furniture frames, hydraulic pipelines | |
| Standard Shaped Profiles (Angle, Channel, T-Shape, U-Shape) | Standardized cross-sections, easy assembly, good load-bearing | Structural supports, frame connectors, shelf brackets, construction beams | |
| Custom Special-Shaped Profiles | Tailored cross-sections, integrated functions, high design flexibility | Automotive parts, curtain wall connectors, electronic enclosures, industrial equipment components | |
| Processing Method | Extruded Profiles | High production efficiency, diverse shapes (solid/hollow/special-shaped), cost-effective | Architectural frames, door/window profiles, consumer product shells |
| Drawn Profiles | High dimensional precision (tolerance ±0.01mm), smooth surface | Precision components, medical instruments, hydraulic tubes | |
| Rolled Profiles | Suitable for simple shapes, large batch production, uniform thickness | Flat bars, angle bars, wide plates for construction | |
| Alloy Series | 1xxx Series (Pure Aluminum) | High corrosion resistance, good conductivity/thermal conductivity, low strength | Heat sinks, decorative profiles, electrical conductors |
| 3xxx Series (Al-Mn Alloy) | Enhanced strength vs. pure aluminum, excellent weldability | Architectural handrails, food packaging frames, heat exchange profiles | |
| 5xxx Series (Al-Mg Alloy) | Superior corrosion resistance (marine-grade), good ductility | Marine structures, offshore pipelines, automotive body parts | |
| 6xxx Series (Al-Mg-Si Alloy) | Heat-treatable, high strength, excellent formability | Architectural frames, automotive components, structural supports | |
| 7xxx Series (Al-Zn-Mg-Cu Alloy) | Ultra-high strength, good fatigue resistance | Aerospace components, high-load structural parts, sports equipment | |
| Application Scenario | Architectural Profiles | Aesthetic appearance, corrosion resistance, easy installation | Door/window frames, curtain walls, handrails, ceiling grids |
| Industrial Profiles | High strength, good machinability, functional integration | Machinery frames, conveyor components, heat exchanger cores | |
| Transportation Profiles | Light weight, high strength, fatigue resistance | Automotive frames, railway interior trim, ship hull components, aerospace parts | |
| Consumer Product Profiles | Aesthetic design, formability, light weight | Furniture frames, sports equipment (bicycle frames), electronic device casings |
