The 6065 Al grade belongs to the 6xxx series and stands out with its strong structure, high reluctance against rust, and superior machinability capabilities. Due to its improved mechanical performance and reliable heating, it is perfect for various uses in the aerospace, automotive, and industrial areas. Here, you know about the description of this alloy and its traits.
Overview of 6065 Al Grade
This alloy is magnesium (Mg) and silicon (Si) based. It stands out with its durability, wear-resistance, and thermal management properties. This alloy delivers you better strength and is a good fit for supporting heavy loads or making parts requiring accuracy. The alloy can be treated with heat and is valued highly because it is weldable and resistant to stress corrosion cracking. It is also reliable at very high temperatures.
Since 6065 is smooth and well-suited for various shapes, it’s an excellent material choice for products that require both strength and appearance. 6065 is very suitable for extruding, rolling, and forging processes. Since it supports complicated shapes while ensuring strength.
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Chemical Composition and Role of Each Element
| Element | Weight Percentage (%) | Function in Alloy |
| Aluminum (Al) | Balance | Base metal |
| Silicon (Si) | 0.6-0.8 | Enhances strength and wear resistance. |
| Chromium (Cr) | 0.05-0.25 | Improves corrosion resistance |
| Magnesium (Mg) | 0.9-1.3 | Strength and corrosion resistance |
| Copper (Cu) | 0.15-0.35 | Increase Strength |
| Others | Trace | Grain refinement and control |
Mechanical and Physical Properties of 6065 Aluminum
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Mechanical Properties
| Properties | Tensile Strength | Yield Strength | Elongation | Hardness | Modulus of Elasticity |
| Attributes | 310 – 340 MPa | 260 – 290 MPa | 10 – 14% | ~100 HB | 70 GPa |
o Tensile Strength
6065 can deal with high levels of tension because its tensile strength is 310–340 MPa, which is needed for your major construction and load-carrying needs.
o Yield Strength
A yield strength of 260–290 MPa makes the material resistant to lasting shape changes, making it perfect for your parts that experience heavy weight.
o Elongation
You should expect around 10–14% elongation in the material, which makes it easier to fabricate. You can work on the forms and shapes of components without losing their strong structure.
o Hardness
Your equipment will gain 100 HB hardness, which makes sure it lasts and holds up to wear and tear. Therefore, your parts are expected to last longer, especially in situations where there is a lot of friction or impact.
o Modulus of Elasticity
At 70 GPa, your parts become stiffer and can return to their original form when stress is removed.
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Physical Properties
| Properties | Density | Melting Point | Thermal Conductivity | Electrical Conductivity | Thermal Expansion |
| Attributes | 2.70 g/cm³ | 585-650°C | 165 W/m·K | ~42% IACS | ~23.4 µm/m·K |
o Density
Because 6065 has a density of 2.70 g/cm³, you can use less weight but still maintain a sound structure, which is very important for better performance.
o Melting Point
You should not have any concerns processing this alloy because its melting point range covers 585–650°C.
o Thermal Conductivity
With 165 W/m·K thermal conductivity, the alloy is an ideal fit for your parts that handle heat, such as housings, radiators, and thermally sensitive parts.
o Electrical Conductivity
Because of its ~42% IACS, the alloy is perfect for reliable performance in your enclosures, grounded parts, and lightweight components that conduct moderate electrical power.
o Thermal Expansion
Because thermal expansion is 23.4 µm/m·K, you don’t have to worry about your products expanding or contracting when the temperature changes.
Heat Treatment and Other Processing Techniques
- Heat Treatment
The 6065 Aluminum with the T5 and T6 tempers is heat-treated, which makes it stronger and more durable by working on the tensile properties. This leads to better resistance against corrosion and more reliable performance in your demanding situations.
- Cold Working
Cold working is effective for shaping and strengthening, particularly through extrusion and rolling methods.
- Anodizing:
Anodizing is that it makes the surface both protected and good-looking. The extra anodized layer makes your product more resistant to weathering, and it allows the visible parts of aerospace and automotive assemblies to be customized with color.
Related: Anodized Aluminum Colors: Everything You Need To Know
Applications
- Automotive
6065 aluminum is a good choice for your structures, engine mounts, and impact bars in sports and high-speed cars, as it is both strong, reliable, and lighter.
Related: Aluminum Gears – The Ultimate Guide
- Pipelines
Apply this material for tubing needed in hydraulic, oil, and high-pressure pipes. You can rely on superior strength and resistance to rust in situations calling for strong fluid transport systems.
- Aerospace fittings
When you need aerospace support with strong structures and a lightweight, 6065 aluminum should be your go-to choice.
- Shipbuilding
When building boats, your 6065 aluminum stands out as the ideal choice, used to build the bottom structure, frames, and decks needing great resistance against corrosion and enough strength.
Conclusion
6065 Al grade is both strong and rust-resistant, making it perfect for metal frames and other industrial needs. The strong and uniform 6065 Aluminum helps create reliable, strong, and precise products for your different projects. Hmaking is one of the reliable custom aluminum parts manufacturers. We deal with a range of customized parts solutions for various industries including aerospace, automotive, military, agriculture and many more.
Contact us today, if you need 6065 parts as per your requirements. We will be happy to assist you.