Introduction to 6063-T5 Aluminum Alloy
6063-T5 aluminum is a medium-strength aluminum alloy known for its excellent corrosion resistance, outstanding extrusion performance, and superior surface quality. It belongs to the Al-Mg-Si heat-treatable aluminum alloy family, with silicon (Si) and magnesium (Mg) as the primary alloying elements.
The T5 temper indicates that the alloy is cooled after extrusion and then artificially aged, allowing it to meet standardized mechanical property requirements without a separate solution heat treatment. As a professional aluminum supplier, GNEE provides stable-quality 6063-T5 aluminum products widely used across construction, transportation, furniture, and industrial sectors.
What Does T5 Mean in 6063-T5 Aluminum?
In 6063-T5 aluminum, the T5 temper refers to a specific thermal process:
The alloy is extruded at elevated temperature
It is then rapidly cooled
Followed by artificial aging to increase strength and hardness
This process improves mechanical stability while preserving excellent formability and surface finish, making 6063-T5 aluminum ideal for architectural and decorative applications.
Advantages of 6063-T5 Aluminum Alloy
Cost-Effective Medium-Strength Performance
Among medium-strength aluminum alloys, 6063-T5 offers an excellent balance between performance and cost, making it a popular choice for large-scale projects.
Stable Mechanical Properties
After T5 heat treatment, 6063-T5 aluminum maintains consistent strength and dimensional stability, ensuring reliable structural performance.
Excellent Extrusion Capability
6063-T5 aluminum can be extruded into complex and precise cross-sections, supporting customized designs and intricate profiles.
Outstanding Corrosion Resistance
This alloy performs particularly well in humid, atmospheric, and mildly corrosive environments, extending service life with minimal maintenance.
6063-T5 Aluminum Plate and Sheet Properties
Medium Strength
6063-T5 aluminum has slightly lower strength than 6061 but fully meets the requirements of most medium-load applications.
Superior Corrosion Resistance
It resists oxidation and corrosion in freshwater, atmospheric, and coastal environments, making it suitable for indoor and outdoor use.
Excellent Workability
The alloy offers good extrudability, machinability, and weldability, supporting cutting, drilling, bending, and forming processes.
High Aesthetic Quality
Its smooth surface is ideal for anodizing and electrophoretic coating, producing a uniform oxide layer and attractive appearance.
Lightweight Structural Efficiency
Compared with steel, 6063-T5 aluminum plates and sheets provide significant weight reduction while maintaining dependable strength.
Forms of 6063-T5 Aluminum Supplied by GNEE
6063-T5 Aluminum Rectangular Bar
Lightweight, corrosion-resistant, and easy to fabricate, it is commonly used in frames, machinery parts, and decorative structures.
6063-T5 T-Slot Aluminum Extrusion
Designed for modular assembly, widely applied in industrial frames, automation systems, and work platforms.
6063-T5 Aluminum Flat Bar
Features a smooth surface and good conductivity, suitable for tracks, trims, and structural supports.
6063-T5 Aluminum Plate
Lightweight and easy to process, commonly used for panels, covers, and structural components in construction and transportation.
6063-T5 Aluminum Pipe
Hollow and corrosion-resistant with excellent weldability, ideal for railings, pipelines, and decorative tubing.
6063-T5 Aluminum Profile
Highly customizable extrusions are used for doors, windows, radiators, and furniture components.
6063-T5 Aluminum Sheet
Thin, flexible, and easy to bend, widely used in signage, decorative panels, and electronic housings.
6063-T5 Aluminum Angle (Architectural)
L-shaped profile with stable geometry, commonly applied in corner protection, framing, and architectural decoration.
What Is 6063-T5 Aluminum Used For?
Construction Industry
Door and window frames
Curtain wall systems
Insulated curtain wall profiles
Transportation Industry
Automotive interior panels
Subway and rail interior decorations
Electronics and Communications
Heat sinks
Precision instrument enclosures
Furniture and Decoration
Furniture panels
Billboard backing plates
Lightweight Structures
Bridge guardrails
Highway sound barriers
Aviation Secondary Structures
Interior decorative components
Lightweight brackets
6063-T5 Aluminum Processing Characteristics
6063-T5 aluminum offers excellent machinability and weldability, making it suitable for cutting, stamping, bending, and general fabrication. Its surface treatment performance is outstanding, with common finishes, including anodizing and electrophoretic coating, significantly improving corrosion resistance and visual appeal.
6063-T5 Aluminum Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Aluminum (Al) | 97.5 | 99.35 |
| Magnesium (Mg) | 0.45 | 0.90 |
| Silicon (Si) | 0.20 | 0.60 |
| Iron (Fe) | – | 0.35 |
| Chromium (Cr) | – | 0.10 |
| Copper (Cu) | – | 0.10 |
| Manganese (Mn) | – | 0.10 |
| Titanium (Ti) | – | 0.10 |
| Zinc (Zn) | – | 0.10 |
| Others | – | 0.15 (0.05 each) |
6063-T5 Aluminum Mechanical Properties
Ultimate Tensile Strength: 186 MPa
Yield Strength: 145 MPa
Elongation at Break: 12%
Brinell Hardness: 60 HB
Elastic Modulus: 68.9 GPa
Fatigue Strength: 68.9 MPa
6063-T5 Aluminum Physical, Electrical, and Thermal Properties
Density: 2.7 g/cm³
Electrical Resistivity: 3.16 × 10⁻⁶ Ω·cm
Thermal Conductivity: 209 W/m·K
Melting Range: 616–654°C
Coefficient of Thermal Expansion (20–300°C): 25.6 μm/m·°C
Why Choose GNEE 6063-T5 Aluminum?
GNEE supplies 6063-T5 aluminum plates, sheets, profiles, bars, pipes, and custom extrusions with stable quality, precise dimensions, and excellent surface finish. Our products comply with international standards and are ideal for architectural, industrial, and decorative applications worldwide.
