Aluminium Profile L – Versatile 6063/6061 L-Shaped Extrusions for Every Application

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The Aluminium Profile L — commonly referred to as an L-bar, L-section, or angle extrusion — is the most universally recognised shape in the aluminium extrusion catalogue. Defined by two perpendicular legs forming a precise 90° corner, this deceptively simple profile is the foundation of countless structures: from heavy-duty machinery frames and construction brackets to delicate furniture trims and architectural reveals. Its strength lies in its geometry — the right-angle bend provides inherent rigidity along two axes while remaining remarkably light, making it an essential component in any fabricator's, builder's, or designer's material library.

Aluminium L profile dimension drawing showing leg lengths, wall thickness and 90-degree angle specifications

We extrude L profiles from 6063-T5 and 6061-T6 aluminium alloys, each selected for the demands of the intended application. 6063-T5 offers an excellent surface finish and anodizing response, making it the preferred choice for architectural trims, shopfitting, and decorative elements. 6061-T6 delivers superior mechanical strength (≥290 MPa tensile) and is specified for structural frames, welded fabrications, and load-bearing brackets where safety factors must be respected. For demanding structural applications, our thick wall aluminium angle sections provide additional cross-sectional strength, while our precision aluminium right angle strips cater to applications requiring enhanced angular accuracy and fine surface finish.

Shengxin produces L profiles entirely in-house on our 35 extrusion lines, covering a vast dimensional range from tiny 5mm trims to massive 150mm structural sections. Equal leg, unequal leg, thick wall, thin wall, mill finish, anodized, powder coated — whatever your specification, we have the extrusion capability and the die library (500,000+ moulds) to supply it. With 29 years of aluminium manufacturing experience and a vertically integrated factory that handles everything from billet casting to final surface treatment, we deliver aluminium extrusions that meet the quality expectations of OEMs, contractors, and fabricators in 97 countries.

Features & Benefits

Universally applicable 90° geometry: The L-shape is the simplest and most versatile structural connector — equally at home as a shelf bracket, a frame gusset, or an edge protector.
Wide dimensional range available: Leg lengths from 5mm to 150mm, wall thicknesses from 1mm to 15mm — one profile shape covers applications from delicate electronic mounts to heavy industrial supports.
Two standard alloy options: 6063-T5 for architectural finish and easy fabrication; 6061-T6 for structural strength and weldability. Choose the alloy that matches your load and surface requirements.
Corrosion resistant and durable: Aluminium's natural oxide layer provides inherent rust protection. Anodized or powder coated finishes extend service life to decades, even in exterior and marine environments.
Easy to work with standard tools: L profiles can be cut with a standard saw, drilled with a hand drill, and joined with bolts, rivets, or welding — no specialist equipment required.
100% recyclable at end of life: Aluminium L profiles contribute to circular economy targets and green building certifications without any degradation in material properties.

Standard L Profile Sizes (Commonly Produced)

These are representative standard dimensions. Custom leg lengths, wall thicknesses, and unequal leg combinations are produced to order. Dimensions shown as Leg A x Leg B x Thickness.

Size (A x B x t)	Leg A	Leg B	Thickness	Typical Alloy	Common Use
10 x 10 x 1.5 mm	10 mm	10 mm	1.5 mm	6063-T5	Light trim, model making
20 x 20 x 2.0 mm	20 mm	20 mm	2.0 mm	6063-T5	Edge protection, brackets
30 x 30 x 3.0 mm	30 mm	30 mm	3.0 mm	6063-T5 / 6061-T6	Framing, shelving supports
40 x 40 x 4.0 mm	40 mm	40 mm	4.0 mm	6061-T6	Structural brackets, machinery
50 x 50 x 5.0 mm	50 mm	50 mm	5.0 mm	6061-T6	Heavy equipment, trailers

Not seeing your required dimension? We custom-extrude L profiles with leg lengths up to 300 mm and wall thicknesses up to 15 mm. Unequal leg configurations — such as 40x25mm or 75x50mm — are produced routinely. Contact us with your drawing for a quotation.

Shengxin aluminium extrusion factory with 35 production lines and 100,000-ton annual capacity

Technical Specifications

Profile Type	L Profile (Angle / L-Bar / L-Section)
Alloy Options	6063-T5 (architectural), 6061-T6 (structural), 6005A, 6082
Leg Length Range	5 mm – 300 mm per leg (equal or unequal)
Wall Thickness	1.0 mm – 15.0 mm (dependent on leg length and alloy)
Angular Tolerance	±1° (standard); ±0.5° available on request
Standard Length	6.0 m (custom cut-to-length available)
Surface Finish	Mill finish, anodized (clear/black/bronze), powder coated (RAL), PVDF
Compliance	EN 755, EN 12020, JIS H4100, GB 5237

Choosing the Right L Profile for Your Project

Not all L profiles are the same. This quick-reference guide helps you navigate our L profile range and identify the best product for your specific requirements.

Your Requirement	Recommended Product	Key Specification
Standard equal-leg for framing and brackets	Equal Leg Aluminium Angle	Symmetrical, wide size range in stock
Different leg lengths for offset mounting	Unequal Leg Aluminium Angle	Asymmetric design, any ratio available
High load-bearing, structural applications	Thick Wall Aluminium Angle	8–15 mm wall, 6061-T6, heavy-duty
Precision instruments, tight tolerances	Precision Aluminium Right Angle Strip	±0.5° angle, tight straightness
Anodized finish for architectural use	6063 T5 Anodized Aluminium Angle	Qualanod certified, clear/black/bronze

Not sure which L profile fits your project? Contact our technical team with your load requirements, environmental conditions, and aesthetic preferences — we will recommend the optimal section and alloy.

Where Aluminium L Profiles Are Used

Structural framing and bracing: L profiles serve as corner gussets, cross-bracing members, and frame connectors in machine frames, workbenches, conveyor systems, and mezzanine structures — providing rigidity without the weight penalty of steel.
Edge protection and corner guards: Mounted on wall corners, column edges, and countertop perimeters, L profiles protect against impact damage while providing a clean, finished appearance in high-traffic commercial and industrial environments.
Brackets and mounting supports: Short L profile sections function as shelf brackets, equipment mounting feet, solar panel supports, and signage brackets — easily drilled and bolted on-site for custom installations.
Architectural reveals and shadow trims: Anodized L profiles create crisp, straight shadow lines at wall-to-ceiling junctions, panel joints, and cladding edges — specified by architects for modern, minimalist aesthetics.
Furniture and display manufacturing: L profiles form the structural framework of retail shelving, exhibition stands, wardrobe systems, and modular furniture — combining load-bearing capacity with a clean, industrial look.
DIY, prototyping, and repair: The go-to material for home workshops, R&D labs, and maintenance teams — L profiles are used for building jigs, repairing equipment frames, and constructing custom enclosures with minimal tooling.

Value-Added Processing Options

Service	Capability
Cut-to-Length	Precision saw cutting to specified lengths; clean, burr-free ends
Drilling & Tapping	CNC drilled holes, slots, countersinks, and threaded holes up to M16
Mitre Cutting	45° and custom angle mitre cuts for welded or bolted frame corners
Surface Finishing	In-house anodizing (3 lines), powder coating (3 lines), PVDF, wood grain
Welding & Assembly	Fabrication of welded L-profile frames, brackets, and complete assemblies
Packaging	Protective wrapping, custom pallets, labelled bundles for easy receiving

Why Shengxin for Aluminium L Profiles?

The L profile may be the most basic aluminium extrusion shape, but producing it consistently — with true 90° angles, uniform leg thickness, and straight lengths free of twist — requires precision at every stage of the manufacturing process. Shengxin's 29-year track record in aluminium extrusion is built on mastering the fundamentals. With 35 extrusion lines (up to 5,500 tons), an in-house die shop, and a vertically integrated finishing department, we deliver L profiles that meet the dimensional and surface quality expectations of the most demanding customers.

500,000+ Die Library

The largest standard L profile inventory you are likely to find. Most common sizes are available without new tooling costs — saving you time and money.

100,000-Ton Annual Capacity

From a single bar for a prototype to multi-tonne container loads for production, our 35 extrusion lines scale with your project without compromising quality.

Complete Surface Finishing

3 anodizing lines, 3 powder coating lines, PVDF, and wood grain transfer — all under one roof. Your L profiles arrive finished and ready for use.

Global Supply & Certification

$120 million in assets. Shipped to 97 countries. Full mill certificates, dimensional reports, and compliance documentation with every order.

Quality Without Compromise: Every L profile order is supported by alloy composition certificates, dimensional inspection reports, and surface quality documentation. 5,000-ton warehouse and 5 container loading platforms ensure your material ships on time. We support PPAP and project-specific quality requirements.

Aluminium L Profile FAQ

Q: What does "L profile" mean — is it the same as an angle?

A: Yes. "L profile", "aluminium angle", "L-bar", and "L-section" all refer to the same basic shape — two legs joined at a 90° corner. The terminology varies by region and industry, but the product is the same. We use these terms interchangeably across our product range.

Q: How do I decide between 6063 and 6061 alloy for my L profile?

A: Choose 6063-T5 if surface finish, anodizing quality, or ease of forming is your priority — it is ideal for architectural trims, furniture, and decorative applications. Choose 6061-T6 if mechanical strength, weldability, or structural load capacity is required — it is the standard for machinery frames, heavy brackets, and welded fabrications. Still unsure? Our technical team can advise based on your specific application.

Q: Can L profiles be supplied with holes already drilled?

A: Yes. Our CNC machining department can drill, countersink, tap, and slot L profiles to your exact specifications. Provide a drawing with hole positions, diameters, and any thread requirements, and we will deliver ready-to-assemble components.

Q: What surface finishes are available for L profiles?

A: We offer mill finish (as-extruded), clear anodized, black anodized, bronze anodized, and powder coated in any RAL colour. For exterior architectural applications, PVDF coating provides the highest UV and weather resistance. Wood grain transfer is also available for decorative applications.

Q: What is the minimum order quantity for L profiles?

A: For standard stock sizes, we can supply small quantities — even a single 6-metre bar for prototyping. Custom die profiles typically require a minimum production run of 300–500 kg. Contact our sales team with your requirements for a precise quotation and stock check.

Custom Aluminium L Profile Solutions

Every project has unique requirements. Whether you need a non-standard leg length, unequal legs, a thicker wall, a special alloy, or a completely bespoke L profile design, Shengxin's custom extrusion service delivers precision aluminium profiles engineered to your exact drawings and specifications.

How It Works:

Send your drawing — 2D PDF/DWG or 3D STEP/IGES file.
Our engineers review — we assess feasibility and suggest optimisations.
Receive a quotation — including die cost, unit price, and lead time.
Approve a sample — we extrude a trial section for your sign-off.
Full production — consistent quality, delivered on schedule.

⚠️ Important Note: All product images and dimensional drawings on this page are for reference only. Each custom profile is unique — final dimensions, tolerances, and surface finish will be confirmed based on your approved production drawing. Please contact our engineering team to discuss your specific requirements before placing an order.

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