Introduction
Aluminium profiles are fundamental components in modern manufacturing and construction, valued for their versatility, strength-to-weight ratio, and corrosion resistance. Mass-produced from alloys like 6061 and 6063, these extruded shapes fall into two primary categories: basic geometric shapes and modular T-slot systems.
Understanding these standard profiles helps businesses select the right materials for their projects efficiently. From simple angles and channels to complex T-slot systems, aluminium profiles offer endless possibilities for design and construction.
Common Standard Shapes
Basic geometric aluminium profiles are versatile and used across various industries for framing, support, and structural applications.
L-Shaped Angles
Featuring two perpendicular legs (with equal or unequal sides), these are ideal for corner protection, shelving brackets, and structural reinforcement.
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U-Channels/C-Channels
Characterized by a flat base with two parallel legs, these profiles serve as tracks for sliding systems, architectural lining, and lightweight framing.
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T-Profiles
With a T-shaped cross-section, they are commonly used to join surfaces, create ceiling grids, or build modular frameworks where simple connections are needed.
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Hollow Tubes
Available in square, rectangular, or round sections, hollow tubes offer high strength-to-weight ratios. They are widely employed in machinery frames and handrails.
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Bars/Rods
Solid profiles (flat, round, square, or hexagonal) function as reinforcements, spacers, axles, or decorative elements in machinery and construction.
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I-Beams/H-Sections
Designed with a central web and flanges to resist bending, these are critical for load-bearing structures like bridges and heavy-duty equipment.
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T-Slot and V-Slot Profiles
Modular T-slot extrusions are a specialized category enabling weld-free assembly. They feature grooves that accommodate T-nuts and bolts for adjustable, reusable structures.
T-Slot Profiles
These allow flexible construction of machine frames, industrial workstations, safety guards, and automation equipment. Standard series (e.g., 20, 30, 40, 45) correspond to dimensions (e.g., 20×20 mm for light duty; 40×40 mm for industrial uses), ensuring compatibility with accessories.
V-Slot Profiles
A variation with V-shaped grooves, designed for linear motion systems like 3D printers and CNC machinery, where wheels glide smoothly along the tracks.
Key Advantages
- Weld-free assembly
- Quick and easy to configure
- Reusable and reconfigurable
- Compatible with a wide range of accessories
- Ideal for custom machinery and automation
Key Application Industries
Standard aluminium profiles cater to diverse sectors due to their adaptability and performance.
Construction & Architecture
Used in window/door frames, curtain walls, solar panel mounts, and roofing. Their durability and aesthetic flexibility make them ideal for modern buildings.
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Manufacturing & Automation
T-slot systems dominate in machine bases, conveyor systems, and modular workstations, offering quick assembly and reconfiguration without welding.
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Transportation
In automotive, aerospace, and marine applications, aluminium profiles reduce weight while maintaining strength, improving fuel efficiency and payload capacity.
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Electronics
Heat sinks and equipment housings leverage aluminium’s thermal conductivity, while server racks benefit from its structural integrity.
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Furniture & Interior Design
From sleek furniture frames to office partitions, these profiles combine functionality with modern aesthetics.
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Renewable Energy
Used in solar panel frames, wind turbine components, and hydroelectric systems due to their corrosion resistance and lightweight properties.
Learn MoreAlloys and Quality Considerations
Understanding the right alloy and quality standards ensures optimal performance for your specific application.
Common Alloys
6063-T5
Offers excellent extrudability and a smooth surface for anodizing, suiting architectural applications where aesthetics are important.
6061-T6
Provides higher strength for load-bearing structures and applications requiring good machinability and weldability.
Alloy Comparison
| Alloy | Strength | Extrudability | Weldability | Common Uses |
|---|---|---|---|---|
| 6063-T5 | Medium | Excellent | Good | Architectural, frames |
| 6061-T6 | High | Good | Excellent | Structural, machinery |
Quality Considerations
Surface Quality
Avoid profiles with bubbles, cracks, or uneven coloring. High-quality profiles should have a smooth, consistent finish free from defects.
Wall Thickness
Main profiles for critical applications (e.g., exterior windows) should have a minimum wall thickness of 1.4mm to ensure structural integrity.
Protective Coatings
Standards like GB/T 5237 specify minimum coating thicknesses (e.g., anodized films ≥10µm, powder coatings ≥40µm) to enhance corrosion resistance.
Certification
Look for profiles certified to international standards such as ISO 9001 for quality management and ISO 14001 for environmental management.
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