AA 6061 Aluminium Alloys
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AA 6061 Chemical Composition
International alloy designations and chemical composition limits for wrought aluminum and wrought aluminum alloys - Teal Sheets (2025), 2025
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AA 6061 Physical Properties
Temperature
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AA 6061 Heat Treatments
- The times and temperatures are typical for various forms, sizes and methods of manufacture and may not exactly describe the optimum treatment for a specific item.
The nominal temperatures at which metal is heated (applies both for solution and precipitation heat treatment) should be attained as rapidly as possible and maintained ± 5°C of nominal during the time at temperature.
The time at precipitation heat treatment temperature will depend on time required for load to reach temperature. The times shown are based on rapid heating, with soaking time measured from the time the load reached within 5°C of the applicable temperature.
Material should be quenched from the solution heat-treating temperature as rapidly as possible and with minimum delay after removal from the furnace. Quenching is typically performed by immersion of wrought products in a cold water bath, although some forgings are quenched in hot-water. Quenching may be performed by alternative means such as total immersion in an aqueous polymer solution, liquefied gas, hot water, or boiling water, or by air blast or fog to minimize distortion provided samples from the material. The use of high-velocity high-volume jets of cold water is also effective for some materials.
For sheet
Temper T4: Solution heat treated at 530°C, quenched, naturally aged.
Temper T42: Solution heat treated at 530°C, quenched, naturally aged.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours.
Temper T62: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours.
For plate
Temper T4 (applies only to tread plate): Solution heat treated at 530°C, quenched, naturally aged.
Temper T451: Solution heat treated at 530°C, quenched, naturally aged. Stress-relieved by stretching is required to produce a specified amount of permanent set subsequent to solution heat treatment.
Temper T42: Solution heat treated at 530°C, quenched, naturally aged.
Temper T6 (applies only to tread plate): Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours.
Temper T651: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours. Stress-relieved by stretching is required to produce a specified amount of permanent set prior to any precipitation heat treatment.
Temper T62: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours.
For rolled or cold finished wire, rod and bar
Temper T4: Solution heat treated at 530°C, quenched, naturally aged.
Temper T3: Solution heat treated at 530°C, quenched, naturally aged. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered.
Temper T451: Solution heat treated at 530°C, quenched, naturally aged. Stress-relieved by stretching is required to produce a specified amount of permanent set subsequent to solution heat treatment.
Temper T42: Solution heat treated at 530°C, quenched, naturally aged.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours. An alternative treatment comprised of 8 hours at 170°C also may be used.
Temper T89: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 18 hours. An alternative treatment comprised of 8 hours at 170°C also may be used. Cold work prior to any precipitation heat treatment is required to attain the specified mechanical properties for this temper.
Temper T913: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 8 hours. An alternative treatment comprised of 8 hours at 170°C also may be used. Cold work subsequent to precipitation heat treatment is required to attain the specified mechanical properties for this temper.
Temper T94: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 8 hours. An alternative treatment comprised of 8 hours at 170°C also may be used. Cold work subsequent to precipitation heat treatment is required to attain the specified mechanical properties for this temper.
Temper T651: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 8 hours. Stress-relieved by stretching is required to produce a specified amount of permanent set prior to any precipitation heat treatment. An alternative treatment comprised of 8 hours at 170°C also may be used.
Temper T62: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C for 8 hours. An alternative treatment comprised of 8 hours at 170°C also may be used.
For extruded rod, bar, profiles and tube
Temper T1: Quenched directly from the extrusion press, naturally aged. Some extrusions may be adequately quenched using a room temperature air blast.
Temper T4: Solution heat treated at 530°C, quenched, naturally aged. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T4510: Solution heat treated at 530°C, quenched, naturally aged. Stress-relieved by stretching is required to produce a specified amount of permanent set subsequent to solution heat treatment. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T4511: Solution heat treated at 530°C, quenched, naturally aged. Stress-relieved by stretching is required to produce a specified amount of permanent set subsequent to solution heat treatment. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T42: Solution heat treated at 530°C, quenched, naturally aged.
Temper T51: Quenched directly from the extrusion press, precipitation heat treated at 175°C for 8 hours. Some extrusions may be adequately quenched using a room temperature air blast.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T6510: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours. Stress-relieved by stretching is required to produce a specified amount of permanent set prior to any precipitation heat treatment. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T6511: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours. Stress-relieved by stretching is required to produce a specified amount of permanent set prior to any precipitation heat treatment. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T62: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours.
For structural profiles
Temper T4: Solution heat treated at 530°C, quenched, naturally aged. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
For pipe
Temper T4: Solution heat treated at 530°C, quenched, naturally aged. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C for 8 hours. By suitable control of extrusion temperature, product may be quenched directly from extrusion press to provide specified properties for this temper. Some products may be adequately quenched in air blast at room temperature.
For drawn pipe
Temper T4: Solution heat treated at 530°C, quenched, naturally aged.
Temper T42: Solution heat treated at 530°C, quenched, naturally aged.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C, for 18 hours. An alternative treatment comprised of 8 hours at 170°C also may be used.
Temper T62: Solution heat treated at 530°C, quenched, precipitation heat treated at 160°C, for 18 hours. An alternative treatment comprised of 8 hours at 170°C also may be used.
For die and hand forgings
Temper T4: Solution heat treated at 530°C, quenched, naturally aged. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C, for 8 hours.
For rolled rings
Temper T4: Solution heat treated at 530°C, quenched, naturally aged. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered.
Temper T452: Solution heat treated at 530°C, quenched, naturally aged. Stress-relieved by 1-5 percent cold reduction subsequent to solution heat treatment. By definition, this temper designation is that which would apply after natural aging even though mechanical properties for this alloy-temper product have not been registered.
Temper T6: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C, for 8 hours.
Temper T652: Solution heat treated at 530°C, quenched, precipitation heat treated at 175°C, for 8 hours. Stress-relieved by 1-5 percent cold reduction prior to precipitation heat treatment.
Annealing (O)
Heated at 415°C, held for 2-3 hours. This treatment is intended to remove effects of solution heat treatment and include cooling at a rate of about 30°C per hour from the annealing temperature to 260°C. The rate of subsequent cooling is unimportant. Treatment at 345°C, followed by uncontrolled cooling, may be used to remove the effects of cold work, or to partially remove the effects of heat treatment.
AA 6061 Mechanical Properties
Temperature
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AA 6061 International Equivalent Materials
Showing 15 of 264 results.
Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 264Cross References
- 22Composition
- 1237Mechanical Properties
- 307Physical Properties
- 5Heat Treatment
- 15Metallography
- 1Machinability
- 304Stress-Strain
- 14Formability
- 168Fatigue
- 10Fracture
- 20Creep
- 46Joints
- -Coatings
- -Dimensions
- 5Tribology
- 39Corrosion
- 391Ageing
- -Weatherability
- 13Irradiation
- 97Total Suppliers