Featured residential & industrial solutions engineered with premium alloy components.
A comprehensive study on structural properties, metallurgical compositions, and high-precision applications.
6063 aluminium is a silicon-magnesium based alloy belonging to the 6000-series heat-treatable alloys. Highly favored for its exceptional extrudability, corrosion resistance, and post-extrusion finishing capabilities, it serves as the cornerstone for both architectural systems and high-precision industrial components. The alloying additions of Magnesium ($0.45\% - 0.9\%$) and Silicon ($0.2\% - 0.6\%$) form the compound Magnesium Silicide ($Mg_2Si$), which facilitates precipitation hardening (aging) to achieve superior structural strength.
| Element | Silicon (Si) | Magnesium (Mg) | Iron (Fe) | Copper (Cu) | Manganese (Mn) | Chromium (Cr) | Zinc (Zn) | Titanium (Ti) | Aluminium (Al) |
|---|---|---|---|---|---|---|---|---|---|
| Weight % | 0.20 - 0.60 | 0.45 - 0.90 | Max 0.35 | Max 0.10 | Max 0.10 | Max 0.10 | Max 0.10 | Max 0.10 | Balance |
Understanding the mechanical parameters is critical for strategic engineering procurement. Below, we compare the typical tempers (T4, T5, T6, T66) of 6063 extrusion profiles deployed globally:
| Temper Designation | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Vickers Hardness (HV) | Typical Application Scenario |
|---|---|---|---|---|---|
| 6063-T4 | ≥ 130 | ≥ 65 | ≥ 14% | ~ 50 | Complex forming operations, profiles requiring post-forming bending. |
| 6063-T5 | ≥ 160 | ≥ 110 | ≥ 8% | ~ 60 | Standard windows, doors, structural framing with low mechanical strain. |
| 6063-T6 | ≥ 215 | ≥ 170 | ≥ 8% | ≥ 80 | Heavy-duty industrial structures, PV solar mounting systems, CNC machined parts. |
| 6063-T66 | ≥ 245 | ≥ 200 | ≥ 10% | ≥ 90 | Super-high strength architectural curtain walls, custom aerospace sub-frames. |
China, specifically the industrial clusters in Guangdong (Sihui and Foshan), accounts for the world's most advanced, vertically integrated aluminium manufacturing pipelines. Our strategic base provides massive systemic cost-reductions coupled with extreme technical capabilities:
Building sustainable cities for the world. Dedicated to employee satisfaction, customer success, and premium engineering.
Our brand "Aolijie" is deeply rooted in China's industrialization and urbanization journey. In 2000, our founder Mr. Wong stepped into the building materials industry. Observing the rapid growth of modern skylines, he recognized that aluminum profiles—environmentally friendly, low-carbon, robust, and recyclable—were the definitive materials for the cities of tomorrow. Driven by the mission of providing top-tier extrusions globally, he established the production facility in Sihui, Guangdong in 2009 under the banner of Aolijie.
AO: The first letter "A" representing No. 1, combined with "Option" (O), meaning Your First Choice.
LI: Standing for Leading Indicator, positioning us at the forefront of quality benchmarks.
Jie: Translating to "Master Work" in Chinese, ensuring every product is an engineering masterpiece.
A standard 10,000 square meter aluminum profile manufacturing plant was built and commissioned in Sihui, Guangdong. The "Aolijie" brand was officially launched to provide standardized high-quality profiles.
Through stringent quality control and technical R&D, the company earned 13 national patents and successfully obtained ISO9000 management system certification, cementing our technical authority.
To support growing domestic and international demand, we constructed a 100,000 square meter factory, upgrading the annual manufacturing capacity to 100,000 metric tons with state-of-the-art extrusion lines.
In 2024, our sales office in Foshan was set up. By 2026, our dedicated overseas regional office in Malaysia will launch to serve Southeast Asian and global procurement agents directly.
Each production batch undergoes intensive physical and metallurgical testing prior to dispatch.
We deploy a comprehensive testing regime based on international standard ISO 2859 and ANSI/ASQ Z1.4. Products are subjected to continuous verification processes:
Componential Analysis
Tensile Test
Hardness Test
Dimensional Measurement
Coating Test
Salt Spray
UV Aging Test
Our 4 manufacturing plants are loaded with state-of-the-art extrusion equipment (900 tons to 2000 tons) capable of processing thin-wall high-precision geometries, thermal breaks, and structural profiles.





Architectural and Industrial specifications designed to address structural, thermal, and surface finishing challenges.
How global enterprises integrate 6063 alloys into renewable, structural, and electronics technology.
In high-rise structural glazing, modern glass curtain walls, and thermal break sliding windows, 6063-T6 profiles provide structural resilience against wind loads while delivering thermal insulation to minimize carbon footprints.
Aluminum profiles are configured as heavy-duty battery pack enclosures and heat radiators for Electric Vehicles (EVs). Excellent thermal conductivity (200 W/m·K) combined with light weight directly extends EV battery life.
Utilizing high-tensile 4040, 2020, and custom T-Slot extrusions, factories assemble automated modular conveyor belts and structural frames without structural welding, allowing fast changes and low tool costs.
Large-scale global buyers face complex regulatory systems, anti-dumping actions, and carbon verification requirements. Aolijie ensures smooth supply chain operations through compliance documentation, including EN 755, ASTM B221, RoHS directives, and ISO 9001 certifications. By optimizing billet smelting and using secondary recycled clean scrap aluminum, we reduce Scope 3 carbon emissions for global ESG procurement.
Get professional answers from metallurgical engineers on custom profile procurement.
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Premium 6063 and custom-molded aluminum profiles for diverse global industries.