Aluminum angle is a 90-degree L-shaped structural profile, typically produced through extrusion, and widely used in fabrication, framing, and construction applications. It is available in both equal and unequal leg configurations, making it suitable for different load and design requirements.
Common aluminum angle sizes include standard inch and metric dimensions, with multiple alloy options such as 6061 and 6063. Chalco supports custom cutting, machining, and stable supply for project-based requirements.
Aluminum Angle Overview
Processing: cutting, drilling, CNC machining, bending
Alloys: 6061, 6063, 7075 and other grades
Surface: anodized, powder coated, brushed, mill finish
Standards: ASTM B221, ASTM B308
Aluminum Angle Sizes Chart (Inch and Metric)
Aluminum angle sizes are available in a wide range of inch and metric dimensions to meet different structural and fabrication requirements.
- Common inch sizes: 1×1, 1-1/2×1-1/2, 2×2, 3×3, 4×4, 6×6 aluminum angle
- Metric sizes: 20×20 mm, 25×25 mm, 30×30 mm, 40×40 mm, 50×50 mm, 60×60 mm
- Thickness range: from thin wall profiles to heavy structural sections
- Leg configurations: equal and unequal aluminum angle sizes available. See how to choose the right configuration in the selection guide.
| Reference size for Structural Angle |
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| Leg (A) | Leg (B) | Thickness (C) | Radius (R1) | Radius (R2) |
| 1 | 1 | 1/8 | .125 | .094 |
| 1 | 1 | 3/16 | .125 | .094 |
| 1 | 1 | 1/4 | .125 | .094 |
| 1 1/4 | 1 1/4 | 1/8 | .188 | .125 |
| 1 1/4 | 1 1/4 | 3/16 | .188 | .125 |
| 1 1/4 | 1 1/4 | 1/4 | .188 | .125 |
| 1 1/2 | 1 1/2 | 1/8 | .188 | .125 |
| 1 1/2 | 1 1/2 | 3/16 | .188 | .125 |
| 1 1/2 | 1 1/2 | 1/4 | .188 | .125 |
| 2 | 1 1/2 | 3/16 | .188 | .125 |
| 2 | 1 1/2 | 1/4 | .188 | .125 |
| 2 | 2 | 1/8 | .250 | .125 |
| 2 | 2 | 3/16 | .250 | .125 |
| 2 | 2 | 1/4 | .250 | .250 |
| 2 | 2 | 3/8 | .250 | .125 |
| 2 1/2 | 2 | 1/4 | .250 | .125 |
| 2 1/2 | 2 1/2 | 3/16 | .250 | .125 |
| 2 1/2 | 2 1/2 | 1/4 | .250 | .125 |
| 2 1/2 | 2 1/2 | 3/8 | .250 | .125 |
| 3 | 1 1/2 | 3/16 | .250 | .188 |
| 3 | 2 | 3/16 | .250 | .188 |
| 3 | 2 | 1/4 | .312 | .188 |
| 3 | 2 | 5/16 | .312 | .313 |
| 3 | 2 | 3/8 | .312 | .250 |
| 3 | 3 | 3/16 | .312 | .250 |
| 3 | 3 | 1/4 | .312 | .250 |
| 3 | 3 | 3/8 | .312 | .250 |
| 3 | 3 | 1/2 | .312 | .250 |
| 3 1/2 | 3 1/2 | 1/4 | .375 | .250 |
| 3 1/2 | 3 1/2 | 3/8 | .375 | .250 |
| 4 | 2 | 1/4 | .375 | .250 |
| 4 | 3 | 1/4 | .375 | .250 |
| 4 | 2 1/2 | 1/4 | .375 | .250 |
| 4 | 3 | 3/8 | .375 | .250 |
| 4 | 4 | 1/4 | .375 | .250 |
| 4 | 4 | 3/8 | .375 | .250 |
| 4 | 4 | 1/2 | .375 | .250 |
| 5 | 3 | 1/4 | .250 | .250 |
| 5 | 3 | 3/8 | .375 | .312 |
| 5 | 5 | 3/8 | .500 | .375 |
| 5 | 3 | 1/2 | .375 | .312 |
| 6 | 4 | 3/8 | .500 | .375 |
| 6 | 4 | 1/2 | .500 | .375 |
| 6 | 6 | 3/8 | .500 | .375 |
| 6 | 6 | 1/2 | .500 | .375 |
| 6 | 6 | 3/4 | .750 | .375 |
| 8 | 8 | 1/2 | .500 | .375 |
| Reference size for Sharp Corner Architectural Angle |
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| Leg (A) | Leg (B) | Thickness (C) |
| 1/2 | 1/2 | 1/8 |
| 1/2 | 1/2 | 1/8 |
| 3/4 | 3/4 | 1/8 |
| 1 | 3/4 | 1/8 |
| 1 | 1 | 1/8 |
| 1 1/4 | 1 1/4 | 1/8 |
| 1 1/2 | 1 | 1/8 |
| 1 1/2 | 1 1/2 | 1/16 |
| 1 1/2 | 1 1/2 | 1/8 |
| 1 1/2 | 1 1/2 | 3/16 |
| 2 | 1 | 1/8 |
| 2 | 1 1/2 | 1/8 |
| 2 | 2 | 1/8 |
| 2 | 2 | 3/16 |
| 2 | 2 | 1/4 |
| 3 | 1 | 1/8 |
| 3 | 3 | 1/4 |
Aluminum angle sizes are formed through extrusion, ensuring consistent dimensions and supporting custom configurations for different project requirements. Contact Chalco for size availability and project-based supply.
Choosing Equal vs Unequal Aluminum Angle
Aluminum angle is available in equal and unequal configurations. Understanding the difference between these two types helps select the right profile for structural and fabrication applications.
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Equal aluminum angle
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Unequal aluminum angle
Choose Between Equal and Unequal Aluminum Angle
- Load distribution: equal angle for balanced loads, unequal angle for directional support
- Structural design: equal for standard frames, unequal for offset or asymmetric structures
- Application: equal for general fabrication, unequal for specialized engineering needs
Not sure which configuration fits your project? For 90-degree L-shaped aluminum angle profiles formed through extrusion, selection depends on load requirements and structural design. Contact Chalco for selection support and customized solutions.
Aluminum Angle Alloy Options
Aluminum angle is available in multiple alloy options, each suited for different strength, corrosion resistance, and application requirements.
ASTM B308; AMS-QQ-A-200/8
High strength with good corrosion resistance and machinability. Commonly used for structural frames, brackets, and load-bearing components.
ASTM B221; AMS-QQ-A-200/9
Excellent surface finish and corrosion resistance. Suitable for architectural and decorative applications requiring visual quality.
Other available alloys include:
- 2024 aluminum angle: high strength for aerospace and high-load applications
- 7075 aluminum angle: ultra-high strength for demanding structural use
- 5052 / 5083 aluminum angle: excellent corrosion resistance for marine and outdoor environments
Not sure which alloy fits your application? Contact Chalco for material selection support and customized aluminum angle solutions.
Aluminum Angle Surface Finishes & Ready-to-Use Options
To meet different project environments and appearance requirements, aluminum angle is available with a range of surface finishes.
These finishes improve corrosion resistance, durability, and visual consistency, making aluminum angle suitable for structural, architectural, and decorative applications.
Powder coated aluminum angle is available in white, black, and custom colors to match different design and project needs.
Mill Finish Aluminum Angle
Clear Anodized Aluminum Angle
Black Anodized Aluminum Angle
Powder Coated Aluminum Angle (White, Black & Custom Colors)
Brushed Aluminum Angle
Polished Aluminum Angle
Select the appropriate surface finish based on corrosion resistance, appearance, and application requirements.
Processed Aluminum Angle Options
For many projects, using processed aluminum angle can significantly reduce on-site fabrication time and improve installation efficiency. Aluminum angles can be customized with slotting, drilling, bending, and perforation, allowing ready-to-use components tailored to specific structural and assembly requirements.
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Slotted aluminum angle
Customizable slot size and spacing for adjustable frames, mounting systems, racks, and modular assemblies.
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Curved aluminum angle
Precision bending ensures consistent curvature for architectural structures and custom frame designs.
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Pre drilled aluminum angle
Custom hole positions and diameters reduce on-site drilling and improve installation efficiency.
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Perforated aluminum angle
Custom hole patterns support ventilation, drainage, weight reduction, and decorative applications.
Processed aluminum angle solutions are available to match your project requirements, reducing installation time and improving overall efficiency.
Aluminum Angle Manufacturing & Fabrication Capabilities
Aluminum angle is produced through extrusion and can be further processed to meet specific project requirements. Integrated fabrication and finishing capabilities support consistent quality, flexible customization, and efficient delivery.
- Extruded aluminum angle in equal and unequal configurations
- Cutting, drilling, bending, and CNC machining
- Anodized, powder coated, brushed, and polished finishes
Contact Chalco for integrated aluminum angle supply and fabrication solutions.
Aluminum Angle Applications & Project Use
Aluminum angle is widely used across structural, architectural, and industrial applications. Different configurations, alloys, and surface finishes allow it to meet various load, appearance, and installation requirements.
For structural applications, aluminum angle is typically selected for strength and load-bearing performance, commonly using alloys such as 6061. For architectural and decorative uses, surface quality and appearance are more important, with alloys like 6063 often preferred.
Construction & Framing Applications
Common Alloys: 6063, 6061 aluminum angle bars
Typical Forms: Equal-leg and unequal-leg aluminum angles
Applications: window and door frames, curtain wall supports, edge protection profiles, light structural framing
Decorative & Architectural Trim
Surface Options: anodized, brushed, powder coated aluminum angle
Typical Sizes: small and thin aluminum angle bar sections
Applications: wall corners, tile edge trims, stair nosings, interior decorative detailing
Industrial Equipment & Support Structures
Common Alloys: 6061, 7075 aluminum angle bars
Processing: cut-to-length, pre-drilled, CNC machining
Applications: machine frames, equipment racks, brackets, load-bearing support structures
Solar & Wind Energy Structures
Aluminum angle bars are commonly used in solar mounting systems and wind energy support frames, where corrosion resistance, lightweight construction, and dimensional consistency are required for long-term outdoor service.
Aluminum Angle Application Gallery
Aluminum angle solutions can be tailored to different application requirements, including structural, architectural, and industrial uses.
Frequently Asked Questions About Aluminum Angle
1. What is an aluminum angle?
Aluminum angle is a 90-degree L-shaped structural profile used in framing, fabrication, and construction applications. It is available in equal and unequal configurations to meet different structural requirements.
2. What is the difference between equal and unequal aluminum angle?
Equal aluminum angle has two legs of the same length and is typically used for balanced structural applications. Unequal aluminum angle has different leg lengths and is suitable for directional load support and specialized designs.
3. What sizes are available for aluminum angle?
Aluminum angle is available in standard inch sizes such as 1×1, 2×2, and 3×3, as well as metric sizes including 25×25 mm, 40×40 mm, and 50×50 mm. Custom sizes can also be produced based on project requirements.
4. Can aluminum angle be customized or processed before delivery?
Yes. Aluminum angle can be cut, drilled, bent, or machined to meet specific project requirements, allowing ready-to-use components and reduced on-site fabrication time.
Aluminum Angle Supply and Ordering
Aluminum angle is available in a full range of sizes, alloys, and surface finishes to meet different structural, architectural, and industrial requirements. From standard stock supply to custom extrusion and fabrication, Chalco supports flexible solutions for project-based procurement.
- Confirm specifications: size, alloy, surface finish, and quantity
- Optional processing: cutting, drilling, bending, CNC machining
- Production and quality control based on project requirements
- Packaging and delivery with stable lead time support
Chalco welcomes your technical inquiries and project-based cooperation. Contact us to discuss your aluminum angle requirements and receive a tailored quotation.
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
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