2011 T6 Aluminum
2011-T6 aluminum alloy is a variant of 2011 aluminum alloy that has undergone T6 heat treatment, which includes solution heat treatment and artificial aging. This results in higher tensile strength and hardness. The heat treatment process in the T6 temper significantly enhances the mechanical properties of 2011 aluminum alloy, but it also reduces its ductility. Compared to 2011-T3 aluminum alloy, 2011-T6 performs excellently in strength but compromises on plasticity and ductility.
2011 T6 Aluminum Properties
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High Tensile Strength: 2011-T6 aluminum alloy's tensile strength is significantly improved, much higher than that of 2011-T3. This enhancement makes it perform better under large mechanical loads and suitable for structural components and critical parts that require high load-bearing capacity.
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High Hardness: Due to artificial aging treatment, 2011-T6 aluminum alloy's hardness is noticeably increased, providing better wear resistance. This makes it perform excellently in high-wear environments and suitable for manufacturing wear-resistant parts such as gears, bearing housings, etc.
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Low Ductility: Compared to 2011-T3 aluminum alloy, 2011-T6 has the lowest ductility. Although its strength and hardness are higher, its plasticity and ductility are relatively poor due to the microstructural changes of the metal after cooling. Therefore, special attention is required during processing, especially in forming processes, as brittle fracture is more likely to occur.
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Corrosion Resistance: Like 2011-T3 aluminum alloy, 2011-T6 aluminum alloy has good corrosion resistance, particularly in atmospheric environments. However, its corrosion resistance is limited in certain environments (such as strong acid or alkali environments), requiring additional protection measures like surface treatments.
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Poor Welding Performance: Due to the higher strength and lower ductility of 2011-T6 aluminum alloy, it is prone to cracking during welding, resulting in poor weldability. Therefore, special attention must be given to using appropriate welding techniques and materials, as well as controlling temperature during welding.
2011-T6 Aluminum Mechanical Properties
Property
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2011-T3 Aluminum
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2011-T6 Aluminum
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Elastic (Young's, Tensile) Modulus, GPa
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71
|
71
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Elongation at Break, %
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12
|
8.5
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Fatigue Strength, MPa
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120
|
100
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Poisson's Ratio
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0.33
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0.33
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Shear Modulus, GPa
|
27
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27
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Shear Strength, MPa
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220
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220
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Tensile Strength: Ultimate (UTS), MPa
|
360
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380
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Tensile Strength: Yield (Proof), MPa
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280
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270
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2011-T6 Aluminum Thermal Properties
Property
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2011-T3 Aluminum
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2011-T6 Aluminum
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Latent Heat of Fusion, J/g
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390
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390
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Maximum Temperature: Mechanical, °C
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190
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190
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Melting Completion (Liquidus), °C
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640
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640
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Melting Onset (Solidus), °C
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540
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540
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Specific Heat Capacity, J/kg-K
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870
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870
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Thermal Conductivity, W/m-K
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150
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170
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Thermal Expansion, µm/m-K
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23
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23
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2011-T6 Aluminum Electrical Properties
Property
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2011-T3 Aluminum
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2011-T6 Aluminum
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Electrical Conductivity: Equal Volume, % IACS
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39
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45
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Electrical Conductivity: Equal Weight (Specific), % IACS
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110
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130
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2011 T6 Aluminum Applications
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Aerospace: 2011-T6 aluminum alloy is widely used in the aerospace industry, especially for structural components and assemblies that need to withstand high mechanical loads, such as wing frames, engine mounts, aircraft fuselage frames, and other critical load-bearing parts.
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Automotive Industry: Due to its high strength and hardness, 2011-T6 aluminum alloy is used in automotive manufacturing for parts that need to bear heavy loads, such as engine mounts, chassis structural components, suspension system parts, and more.
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Precision Machinery: 2011-T6 aluminum alloy, with its high strength and wear resistance, is commonly used in precision machinery fields, such as manufacturing high-strength gears, bearing housings, and other mechanical components.
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High Load Components: In applications that require withstanding extreme mechanical stress, 2011-T6 aluminum alloy is often selected, such as for heavy machinery, transportation equipment, and parts of tools and equipment.
2011-T6 aluminum alloy excels in strength and hardness, making it suitable for applications that need to withstand high mechanical loads. Its enhanced tensile strength and hardness enable it to perform excellently in high-load, wear-resistant environments. However, due to its poor ductility, attention must be given to its brittleness during processing and forming.