6082-T61 aluminum alloy has good ductility and machinability, making it suitable for applications where strength requirements are not high but high plasticity and processability are needed.
6082-T61 aluminum alloy is a specific temper of 6082 aluminum alloy, with its characteristics stemming from the solution heat treatment and artificial aging processes.
6082-T61 aluminum alloy undergoes solution heat treatment first, where the alloy is heated to a specific temperature to allow the dissolved elements to distribute uniformly. This process improves the strength and toughness of the material. Afterward, the aluminum alloy undergoes artificial aging treatment to ensure the material reaches a certain level of hardness and mechanical properties. If the aging process is controlled properly, it can optimize the alloy's strength and ductility, though its hardness and strength are not as high as the T651 temper.
Since the T61 temper aluminum alloy does not undergo the same stress relief treatment as the T651 temper, it exhibits better ductility and flexibility. Its elongation before fracture is higher, demonstrating better plasticity. This makes it perform well in applications where forming, bending, or machining is required.
Compared to the T651 temper, 6082-T61 aluminum alloy has lower hardness and tensile strength, making it less suitable for high-stress applications. T61 temper aluminum is ideal for use in applications with relatively low strength requirements, such as those needing flexibility and ease of machining.
Due to the less stressed state of T61 aluminum alloy, its fatigue strength is lower than that of T651. This means it has poorer durability when subjected to repetitive loading and is not suitable for applications requiring frequent vibration or cyclic stress.
6082-T61 differs from the T64 and T65 temper alloys in terms of aging level. T61 has a lighter aging process, resulting in lower hardness and strength. In contrast, T64 and T65 undergo deeper aging, offering higher strength and hardness, but may sacrifice some ductility.
| Property | Value |
| Brinell Hardness | 82 |
| Elastic (Young's, Tensile) Modulus, GPa | 69 |
| Elongation at Break, % | 9.1 |
| Fatigue Strength, MPa | 88 |
| Poisson's Ratio | 0.33 |
| Shear Modulus, GPa | 26 |
| Shear Strength, MPa | 190 |
| Tensile Strength: Ultimate (UTS), MPa | 310 |
| Tensile Strength: Yield (Proof), MPa | 220 |
| Property | Value |
| Latent Heat of Fusion, J/g | 410 |
| Maximum Temperature: Mechanical, °C | 170 |
| Melting Completion (Liquidus), °C | 650 |
| Melting Onset (Solidus), °C | 580 |
| Specific Heat Capacity, J/kg-K | 900 |
| Thermal Conductivity, W/m-K | 160 |
| Thermal Expansion, µm/m-K | 23 |
| Property | Value |
| Electrical Conductivity: Equal Volume, % IACS | 42 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 |
6082-T61 aluminum alloy is suitable for applications that require good machinability, formability, and ductility, such as the manufacturing of lightweight structural parts with complex shapes or those that require secondary processing. These applications typically have relatively low strength and fatigue strength requirements, such as medium-load frames, brackets, thin plates, etc.
| Application Type | Description |
| Lightweight Structural Parts | 6082-T61 aluminum alloy is suitable for manufacturing lightweight structural parts due to its excellent machinability and formability. It is commonly used in applications that require high machinability and formability but have lower strength requirements, such as frames, brackets, and support components. It is widely used in the construction and transportation industries. |
| Complex-Shaped Parts | 6082-T61 aluminum alloy is very suitable for manufacturing complex-shaped parts. Its good formability makes it easy to process into various shapes, including parts that need bending, stretching, or forming. These parts are typically used in decorative elements, complex brackets, and structural support components that require precise forming without compromising material performance. |
| Medium-Load Frames | 6082-T61 aluminum alloy is suitable for manufacturing frames that bear medium loads. Due to its appropriate strength and good ductility, it is ideal for structural components that support moderate loads or pressure. For example, medium-load frames can be used in machinery, vehicles, and construction industries. |
| Thin Plate Components | 6082-T61 aluminum alloy is commonly used to manufacture thin plate components that require both strength and formability. Its higher ductility allows it to be processed into thin plates without losing structural strength, and it is widely used in curtain walls, panels, and other thin-walled components. |
| Parts Requiring Secondary Processing | 6082-T61 aluminum alloy is suitable for parts that require secondary processing (such as machining or welding) after initial processing. Due to its relatively low tensile strength, it is easier to perform subsequent processes like drilling, tapping, and welding. It is particularly suited for manufacturing parts that require post-modification. |
| Parts with Lower Strength and Fatigue Strength Requirements | 6082-T61 aluminum alloy is often used in applications with lower strength and fatigue strength requirements. Due to its medium tensile and fatigue strength, it is suitable for parts that are not subjected to extreme stresses or heavy loads. For example, some non-critical structural components in the aerospace and automotive industries can withstand moderate loads and fatigue conditions. |
| Brackets and Supports in Lightweight Structural Systems | 6082-T61 aluminum alloy is an ideal choice for brackets and supports in lightweight structural systems. It provides sufficient strength for parts that do not bear high stress, such as shelves, light framework structures, and general support components. These systems are widely used in industrial, residential, and commercial environments, where high strength is not a major requirement. |
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