YouHeng is a leading enterprise specializing in the R&D, production, and customization of aluminum alloy structural profiles. We operate advanced extrusion production lines, CNC machining centers, and surface treatment facilities, dedicated to providing customers with high-strength, lightweight, and customizable aluminum profile solutions. YouHeng has become a reliable partner for numerous domestic and international clients in industries such as construction, machinery, and transportation, thanks to our extensive engineering expertise and flexible production capabilities.

 

          1.What is Aluminum L Profile (Aluminum Angle)?

Aluminum L Profile, also known as aluminum angle iron or L-shaped aluminum extrusion, is a long aluminum strip with a right-angled “L”-shaped cross-section. As one of the most basic and widely used structural profiles, it is the material of choice for numerous industries due to its light weight, high strength, ease of processing, and excellent corrosion resistance.

 

At YouHeng, our professionalism in aluminum L profiles is reflected in our extreme attention to detail:

 

• Dimensional Precision: We can strictly control leg widths (ranging from tens of millimeters to hundreds of millimeters) and wall thicknesses, with tolerances far exceeding industry standards.
• Corner Quality: Whether standard rounded corners (R-angles) or customer-specified sharp corners, we ensure they are uniform, clear, and free of cracks.
• Straightness and Flatness: Through advanced stretching and straightening processes, we guarantee the straightness of each profile and the flatness of its legs, meeting high-precision assembly requirements.
• Wide Variety: We not only supply standard equal-leg angles but also produce unequal-leg angles, angles with holes/slots, and custom L-shaped cross-section products based on customer drawings.

  

 

          2.Main Application Areas of Aluminum L Profile

 

The versatility and structural advantages of aluminum L profiles make them shine in the following fields:

 

1. Industrial Framing & Structural Support: Used for assembling machine guards, production line frames, workbenches, shelving, stair railings, and platform supports, providing a robust yet lightweight skeleton.
2. Architecture & Decoration: Serves as reinforcement for door/window frames, connectors for curtain wall systems, interior/exterior trim, skirting boards, and edge banding, combining functionality with aesthetics.
3. Transportation: Used for internal structural supports, guardrails, and decorative trim in truck bodies, trailers, railway cars, and ships, effectively reducing overall weight.
4. Electronics, Electrical & Heat Dissipation: Aluminum angles with high thermal conductivity are commonly used in LED heat sinks, electrical cabinet frames, and electronic equipment housings, serving both structural support and heat dissipation functions.
5. Furniture & Display: Used as frames and connectors for modern furniture (e.g., tables, chairs, bookshelves, display cabinets), offering a clean, stylish appearance and good load-bearing capacity.

   

 

          3.Why Choose 6061 Alloy First? What Other Materials Are Available?

 

6061 alloy (especially in T6 temper) is our most recommended and commonly used material for the following reasons:

 

• Optimal Comprehensive Performance: Achieves a perfect balance between strength, machinability, weldability, and corrosion resistance.
• Excellent Mechanical Properties: Provides high yield and tensile strength, sufficient for most load-bearing and structural applications.
• Superior Machinability: Easy to cut, drill, mill, CNC machine, and weld (TIG/MIG), making it ideal for complex components requiring secondary processing.
• Good Anodizing Results: Capable of achieving high-quality, durable anodized surfaces.

 

Example Mechanical Properties of Standard Equal-Leg Aluminum Angle (6061-T6)

 

Size (W×W×t)	Cross – Sectional Area (A)	Weight (kg/m)	I_x = I_y	Z_x = Z_y	r_x = r_y
25×25×3 mm	141 mm²	0.381 kg/m	1.12×10⁴ mm⁴	0.89×10³ mm³	8.9 mm
40×40×3 mm	231 mm²	0.624 kg/m	4.76×10⁴ mm⁴	2.38×10³ mm³	14.4 mm
50×50×4 mm	384 mm²	1.037 kg/m	1.47×10⁵ mm⁴	5.88×10³ mm³	19.6 mm
60×60×5 mm	582 mm²	1.571 kg/m	3.55×10⁵ mm⁴	1.18×10⁴ mm³	24.7 mm
80×80×6 mm	934 mm²	2.522 kg/m	1.13×10⁶ mm⁴	2.83×10⁴ mm³	34.8 mm

 

In addition to 6061, YouHeng offers various alloys to meet different needs:

 

• 6063 Alloy: Prioritizes extrusion fluidity and surface finish. Offers an extremely aesthetic appearance after anodizing, commonly used in decorative architectural fields where surface quality is prioritized over strength.
• 6082 Alloy: Common in European standards, with slightly higher strength than 6061, ideal for heavy-duty structures.
• 5052/H32 Alloy: Offers excellent fatigue strength and superior corrosion resistance (especially in marine environments), with good weldability, but lower strength than 6061.
• 7075 Alloy: An ultra-high-strength aerospace aluminum alloy with strength comparable to steel, but with higher corrosion resistance challenges and machining difficulty. Used in applications with extremely demanding weight reduction and strength requirements.

 

Our engineers can recommend the most suitable alloy and temper based on your specific application, load requirements, processing methods, and budget.

 

          4.Surface Treatment Options for Aluminum L Profile (YouHeng Meets Your Customization Needs)

 

YouHeng not only supplies raw materials but also provides full-process services from extrusion to surface treatment, realizing your design vision:

 

1. Mechanical Finishing:

• Brushing/Polishing: Achieves matte, straight-grain, or mirror effects, enhancing texture.
• Sandblasting: Creates a uniform matte surface, concealing minor scratches.

2. Anodizing (Our Core Strength Service):

• Clear Anodized: Increases the thickness of the natural oxide film, significantly improving corrosion and wear resistance while maintaining the metal’s original color.
• Color Anodized: Custom colors including black, gold, champagne, bronze, red, blue, and many other RAL or Pantone shades with lasting, stable coloration.
• Hardcoat Anodizing: Creates an extremely thick, super-hard oxide layer with excellent wear resistance, suitable for high-abrasion components.

3. Coating Treatments:

• Powder Coating: Offers virtually unlimited color and texture choices (e.g., matte, sand texture, wrinkled), with a thick, durable, and environmentally friendly VOC-free coating.
• PVDF Coating (Fluorocarbon): Used for building facades with ultra-long weatherability requirements, featuring strong UV resistance and long-lasting color retention.

4. Chemical Treatments:

• Chromate Conversion Coating: Provides basic corrosion protection and enhances coating adhesion, commonly used for electrical connectors.

 

At YouHeng, you can freely combine base profiles with surface treatment options. Whether it’s small-batch custom colors or special functional coatings, we can provide professional advice and reliable delivery.

 

          5.Machining Services for Aluminum L Profile (YouHeng’s Strong Supporting Capabilities)

 

To help customers save supply chain management costs and ensure the precision of final parts, YouHeng is equipped with a comprehensive machining workshop, offering one-stop services from “profile to finished part”:

 

• Precision Saw Cutting: High-speed band saws and CNC circular saws ensure high verticality of cut ends with minimal burrs, achieving length tolerances as tight as ±0.2mm.
• Drilling & Tapping: Processes various through-holes, countersunk holes, and threaded holes according to drawings, ensuring accuracy of assembly positions.
• CNC Milling: Machines complex contours, slots, steps, bevels, etc., suitable for structural components requiring high-precision fit.
• Turning: Used for special turning and forming of profile ends.
• Bending & Forming: Capable of cold forming small angles for specific profile specifications.
• Deburring & Chamfering: Smooths all machined edges for safety and enhanced product quality.

  

 

          6.Why Choose YouHeng?

 

• Flexible Production: Supports orders from as small as 1 piece to large-volume projects
• Full Process Control: In-house control from aluminum ingot to finished product
• Engineering Support: Provides structural calculations, cross-section optimization, and connection design
• Comprehensive Certifications: ISO 9001, ASTM, EN, GB standard certifications
• Global Logistics: Offers sea freight, air freight, and local warehousing services

 

          7.FAQ About Extruded Aluminum L profile

 

1.How can we guarantee the quality of Extruded Aluminum L profile?

We always provide pre-production extruded Aluminum L profile samples before mass production; and we always conduct final inspection before shipment. To ensure the quality of your goods.

 

2.Are you a trading company or manufacturer ?

YouHeng is a professional manufacturer with 15 years of experience.

 

3.Can I have a sample order for Extruded Aluminum L profile ?

Yes, YouHeng can provide you with free samples, which can save your costs. But if you customize the size, you need the mould cost.

 

4.How long is your delivery time?

 

5.Do you have any MOQ limit for Extruded Aluminum L profile ?

Our minimum order quantity is 200 kg.

Whether you need standard-length aluminum L profiles or finished parts ready for immediate assembly, YouHeng can be your reliable manufacturing base. Contact us today for a customized solution and quotation tailored to your project.