6082-T6151 Aluminum vs. 6082-T651 Aluminum
Jan. 16, 2025
6082 T6151 has superior strength and toughness, making it suitable for high-load applications, while 6082-T651, with its lower cost and relatively stable performance, continues to play an important role in many conventional applications.
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6082-T6151: Has higher tensile strength, shear strength, and elongation, suitable for high-performance structural parts that require higher strength and toughness.
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6082-T651: Standard stress-relief tempering treatment, with good strength and plasticity, widely used in structural parts with standard strength requirements.
Differences Between 6082-T6151 and 6082-T651 Aluminum Alloys
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Performance Indicators
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6082-T6151
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6082-T651
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Heat Treatment Process
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Solid solution heat treatment followed by stress-relief tempering
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Solid solution heat treatment followed by stress-relief annealing
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Mechanical Properties
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Higher tensile strength and elongation
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Good tensile strength, suitable for standard structural parts applications
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Applicable Fields
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High-load applications requiring high strength and toughness (e.g., aerospace, heavy machinery, etc.)
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Conventional structural parts and mechanical components with moderate strength requirements (e.g., construction, transportation equipment, etc.)
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6082-T6151 Aluminum vs. 6082-T651 Aluminum Mechanical Properties
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Property
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6082-T6 Aluminum
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6082-T651 Aluminum
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Brinell Hardness
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93
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91
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Elastic (Young's) Modulus, GPa
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69
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69
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Elongation at Break, %
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9.8
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6.3
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Fatigue Strength, MPa
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95
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94
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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
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26
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26
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Shear Strength, MPa
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220
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190
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Tensile Strength: Ultimate (UTS), MPa
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330
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320
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Tensile Strength: Yield (Proof), MPa
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270
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270
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6082-T6151 Aluminum vs. 6082-T651 Aluminum Thermal Properties
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Property
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6082-T6 Aluminum
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6082-T651 Aluminum
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Latent Heat of Fusion, J/g
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410
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410
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Maximum Temperature: Mechanical, °C
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170
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170
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Melting Completion (Liquidus), °C
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650
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650
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Melting Onset (Solidus), °C
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580
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580
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Specific Heat Capacity, J/kg-K
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900
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900
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Thermal Conductivity, W/m-K
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160
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160
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Thermal Expansion, µm/m-K
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23
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23
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6082-T6151 Aluminum vs. 6082-T651 Aluminum Electrical Properties
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Property
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6082-T6 Aluminum
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6082-T651 Aluminum
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Electrical Conductivity: Equal Volume, % IACS
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42
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42
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Electrical Conductivity: Equal Weight (Specific), % IACS
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140
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140
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Applications of 6082 T6151 and 6082-T651 Aluminum Alloys
6082-T6151 is suitable for high-performance structural parts that require high strength, high toughness, dimensional stability, and corrosion resistance, especially performing well in aerospace, heavy machinery, building support structures, and marine environments.
6082 T651, on the other hand, is widely used in conventional structural parts that require standard strength, stability, and cost-effectiveness, such as building materials, transportation equipment frames, and general mechanical components. Its advantages lie in higher processing stability and moderate strength, making it suitable for most industrial and mechanical applications.
Applications of 6082-T6151 Aluminum Alloy
Characteristics:
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Higher tensile strength and shear strength: Due to the fine heat treatment of the T6151 temper, its tensile strength (330 MPa) and shear strength (220 MPa) are higher, enabling it to withstand larger external loads, making it suitable for high-load working environments.
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Higher fracture elongation: A fracture elongation of 9.8% gives 6082-T6151 better ductility, allowing it to withstand larger deformation without fracturing, thus increasing the material's toughness.
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Excellent dimensional stability: By eliminating internal stresses, the material is less prone to deformation or cracking during long-term use, making it suitable for structural applications requiring long-term stability.
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Good corrosion resistance: 6082-T6151 aluminum alloy has excellent corrosion resistance, especially suitable for marine environments, humid environments, and industrial environments.
Main Application Fields:
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Aerospace structures: In the aerospace field, 6082-T6151 is commonly used in parts that withstand high loads and high-speed airflow, such as aircraft frames, wings, fuselage, and other high-strength structural parts. Its high strength, high elongation, and corrosion resistance make it suitable for high-performance requirements in aerospace structures.
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Vehicle frames: The high tensile strength and toughness of 6082-T6151 make it ideal for use in heavy-duty transport vehicles, commercial vehicles, and special transport equipment bodies and frames. These parts often need to withstand large external impacts and loads.
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Heavy machinery: Used for manufacturing key load-bearing parts in construction and mining machinery, such as crane booms, crane structures, excavators, etc. These machines need to withstand powerful impacts and loads, and 6082-T6151, with its strong mechanical properties, is an ideal choice.
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Building support structures: In high-rise buildings and bridges, 6082-T6151 is used to support and carry critical structural components such as beams, columns, and frames. Its high strength and durability ensure the stability of building structures.
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Marine applications: Due to its excellent corrosion resistance, 6082-T6151 is widely used in ships, offshore platforms, and other marine structures. These structures are often exposed to harsh marine environments, so high demands are placed on the material's corrosion resistance and strength.
Applications of 6082-T651 Aluminum Alloy
Characteristics:
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Higher strength: Although slightly lower than T6151, 6082-T651's tensile strength (320 MPa) and shear strength (190 MPa) still meet the requirements for many conventional engineering applications.
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Moderate fracture elongation: A fracture elongation of 6.3% gives it good toughness under standard loads, but it is not as suitable for extreme loads as T6151.
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Stress-relief annealing: The stress-relief treatment of T651 ensures good material stability, effectively preventing deformation and cracking during subsequent processing, making it suitable for applications requiring dimensional accuracy.
Main Application Fields:
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Building materials: 6082-T651 is widely used in the construction industry, particularly in the manufacturing of structural frames and supports. It is used to make beams, columns, staircases, window and door frames, especially in parts that require high strength but do not need extreme toughness.
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Transportation equipment frames: In road, rail, and other transportation vehicle frames, track supports, and vehicle bodies, 6082-T651 is widely used due to its high strength and good welding properties. It provides the necessary strength support for transportation equipment, suitable for withstanding conventional mechanical loads.
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General mechanical components: 6082-T651 is suitable for manufacturing mechanical components, such as mechanical support frames, structural frames, supports, and machine tool parts. Its stability and moderate strength make it an ideal material for conventional mechanical applications.
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Ships and offshore facilities: Although its corrosion resistance is not as good as T6151, 6082-T651 still meets the requirements for general ship structures and offshore facilities. It is used to make ship structural parts, platforms, hulls, etc., suitable for applications in non-extreme environments.
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Industrial structural parts: In some industrial applications that require strength but have relatively lenient environmental conditions, 6082-T651 provides good mechanical properties, such as in the manufacture of industrial machines, storage tanks, warehouse frames, etc.
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