6063 O Aluminum
6063 O aluminum alloy is an annealed state of the 6063 series, widely used in applications requiring good workability and high formability.
In the O state, 6063 aluminum alloy undergoes an annealing process, which eliminates internal stresses and further improves the material's formability and plasticity.
What is 6063 O material?
6063-O aluminum is the annealed state of 6063 aluminum alloy, where "O" stands for the annealed treatment. 6063 aluminum alloy itself is a low-alloy aluminum with good extrudability, primarily used in applications requiring good formability and surface quality. Through the annealing process (heating the aluminum to a specific temperature and slowly cooling it), the strength and hardness of 6063-O aluminum are significantly reduced, while its ductility and machinability are increased, making it an ideal material for various structural and decorative components.
6063 O Aluminum Characteristics
| Characteristics | Description |
| Strength | 6063-O aluminum has a lower tensile strength compared to other states (such as 6063-T5, T6, etc.) and is not suitable for load-bearing structural components. |
| Ductility | The annealed state imparts excellent ductility to 6063-O aluminum, making it easy to bend, stretch, and form without breaking, allowing for complex shape processing. |
| Machinability | 6063-O aluminum has excellent machinability, suitable for both cold and hot working. Its lower hardness makes it an ideal material for precision machining. |
| Weldability | This state of 6063 aluminum exhibits good weldability, suitable for various welding methods (such as arc welding, TIG welding), with minimal cracking or defects after welding. |
| Deep Processing Capability | Due to its excellent ductility and machinability, 6063-O aluminum is suitable for producing components with complex shapes, such as window frames, door frames, pipes, and decorative strips. |
| Surface Quality | 6063 aluminum alloy has good surface quality. After anodizing, it forms a uniform oxide film that enhances corrosion resistance and appearance, making it ideal for high-end decorative parts. |
6063 O Aluminum Corrosion Resistance
6063 O aluminum alloy has good corrosion resistance, especially in construction and outdoor environments. The oxide film formed on its surface can effectively resist environmental corrosive factors. This makes 6063-O aluminum alloy an ideal material for applications such as building facades, balconies, and railings.
| Characteristics | Description |
| Environmental Adaptability | The annealed 6063-O aluminum alloy performs excellently in marine climates, external building environments, and other locations, effectively resisting corrosion from air, moisture, and salt spray. |
| Anodizing Treatment | After anodizing treatment, the surface of 6063-O aluminum forms a thicker oxide layer, further enhancing its corrosion resistance and weatherability, making it suitable for outdoor building decoration, window frames, balcony railings, and other applications. |
6063 O Aluminum Material Data Sheet
| Physical Properties | Metric | English | Comments |
| Density | 2.7 g/cc | 0.0975 lb/in³ | AA; Typical |
| 6063 O Aluminum Mechanical Properties | |||
| Hardness, Brinell | 25 | 25 | AA; Typical; 500 g load; 10 mm ball |
| Ultimate Tensile Strength | 89.6 MPa | 13000 psi | AA; Typical |
| Tensile Yield Strength | 48.3 MPa | 7000 psi | AA; Typical |
| Modulus of Elasticity | 68.9 GPa | 10000 ksi | AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus. |
| Poisson's Ratio | 0.33 | 0.33 | |
| Fatigue Strength | 55.2 MPa | 8000 psi | AA; 500,000,000 cycles completely reversed stress; RR Moore machine/specimen |
| Machinability | 30 % | 30 % | 0-100 Scale of Aluminum Alloys |
| Shear Modulus | 25.8 GPa | 3740 ksi | |
| Shear Strength | 68.9 MPa | 10000 psi | AA; Typical |
| Electrical Properties | |||
| Electrical Resistivity | 2.99e-006 ohm-cm | 2.99e-006 ohm-cm | AA; Typical at 68°F |
| 6063 O Aluminum Thermal Properties | |||
| CTE, linear 68°F | 23.4 µm/m-°C | 13 µin/in-°F | AA; Typical; Average over 68-212°F range. |
| CTE, linear 250°C | 25.6 µm/m-°C | 14.2 µin/in-°F | Average over the range 20-300ºC |
| Specific Heat Capacity | 0.9 J/g-°C | 0.215 BTU/lb-°F | |
| Thermal Conductivity | 218 W/m-K | 1510 BTU-in/hr-ft²-°F | AA; Typical at 77°F |
| Melting Point | 616 - 654 °C | 1140 - 1210 °F | AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater |
| Solidus | 616 °C | 1140 °F | AA; Typical |
| Liquidus | 654 °C | 1210 °F | AA; Typical |
| 6063 O Aluminum Processing Properties | |||
| Annealing Temperature | 413 °C | 775 °F | hold at temperature for 2 to 3 hr; cool at 50°F per hour from 775 to 500°F |
| Solution Temperature | 521 °C | 970 °F | |
| Aging Temperature | 177 °C | 350 °F | hold at temperature for 8 hr |
6063 Aluminum Chemical composition
6063 aluminum alloy is mainly composed of aluminum (Al) and a small amount of magnesium (Mg) and silicon (Si) alloy elements. Its chemical composition makes 6063 aluminum alloy have a good balance of strength and plasticity.
| Constituent element | Minimum (% by weight) | Maximum (% by weight) |
| Aluminium (Al) | 97.5% | 99.35% |
| Magnesium (Mg) | 0.45% | 0.90% |
| Silicon (Si) | 0.20% | 0.60% |
| Iron (Fe) | 0 | 0.35% |
| Chromium (Cr) | 0 | 0.10% |
| Copper (Cu) | 0 | 0.10% |
| Manganese (Mn) | 0 | 0.10% |
| Titanium (Ti) | 0 | 0.10% |
| Zinc (Zn) | 0 | 0.10% |
| (others) | 0 | 0.15% total (0.05% each) |
6063 O Aluminum Advantages and Disadvantages
Advantages of 6063 O Aluminum
- Excellent ductility and machinability, suitable for deep processing and complex shape fabrication.
- Relatively low strength, making it ideal for non-load-bearing and decorative components.
- Outstanding corrosion resistance, suitable for outdoor and humid environments.
- Good weldability, easy to process and join.
Disadvantages of 6063 O Aluminum
- Lower strength, not suitable for high-load-bearing components.
- Relatively easy to suffer mechanical damage, should be avoided in high-strength and high-load environments.
6063 O Aluminum Applications
| Application Area | Description |
| Construction | 6063-O aluminum is widely used in construction for various structural and decorative materials, such as window frames, door frames, curtain wall systems, balcony railings, and window and door trim. |
| Industrial and Mechanical Applications | Suitable for lightweight industrial products and applications requiring complex parts, such as brackets, pipes, and enclosures. It is particularly ideal for environments where lightweight, corrosion resistance, and high machinability are needed. |
| Transportation | Used for producing non-load-bearing components such as vehicle body shells, window frames, and trim, with high ductility, making it easy to process into various shapes and achieve precise fits. |
| Decorative Materials | Through anodizing, coating, and other processes, 6063-O aluminum is widely used in high-end architectural and home design for wall decoration, ceilings, windows, and doors. |
| Electronic Products | Used for producing enclosures and heat sinks, meeting the requirements for lightweight and heat dissipation. |
6063-O aluminum alloy, with its excellent ductility, machinability, and corrosion resistance, has become a preferred material in many industrial and construction applications. Although its strength is relatively low, it still demonstrates unique advantages in applications requiring deep processing and complex shapes.
6063 O Aluminum Processing Capabilities
| Processing Method | Description |
| Extrusion | 6063-O aluminum alloy is suitable for manufacturing complex cross-sectional shapes, such as window frames, door frames, and other building components. |
| Deep Drawing | 6063-O aluminum alloy can undergo deep processing, making it suitable for producing parts with complex shapes. |
| Welding | 6063-O aluminum alloy has good weldability, allowing it to be joined with other aluminum alloys or metals. |