2011-T3 Aluminum vs. 2011-T651 Aluminum
2011 T3 T651, due to the differences in aging treatment and hardening processes, the T3 alloy has higher ductility and electrical conductivity, while the T651 alloy has higher strength, making it suitable for more demanding structural applications.
- 2011-T3 aluminum alloy is suitable for applications requiring higher elongation at fracture and electrical conductivity, such as in the electrical and electronics industries.
- 2011-T651 aluminum alloy is suitable for applications requiring higher strength and stress relieving, such as high-strength structural components in aerospace and automotive industries.
2011-T3 Aluminum and 2011-T651 Aluminum Processing
- 2011 T3 aluminum is an alloy that undergoes solution heat treatment, followed by strain hardening and natural aging.
- 2011-T651 aluminum is an alloy that undergoes solution heat treatment, followed by stress relieving and artificial aging.
| Alloy Condition | Solution Heat Treatment | Strain Hardening / Stress Relieving | Aging Method |
| 2011-T3 | Heating to homogenize the alloy composition | Cold working tension or compression, increasing strength | Natural aging |
| 2011-T651 | Heating to homogenize the alloy composition | Heating treatment to reduce residual stress | Artificial aging |
2011-T3 Aluminum and 2011-T651 Aluminum Properties
| Alloy Condition | Strength | Elongation at Fracture | Electrical Conductivity |
| 2011-T3 | Lower | Higher | Higher |
| 2011-T651 | Higher | Lower | Lower |
2011-T3 Aluminum Properties
- Lower strength: Compared to the T651 condition, 2011-T3 aluminum has lower strength, but it is still suitable for some structural applications.
- Higher elongation at fracture: Due to the natural aging process, 2011-T3 aluminum alloy has better ductility during stretching, allowing it to undergo larger deformations without easily fracturing.
- Higher electrical conductivity: 2011-T3 aluminum has higher electrical conductivity, making it suitable for applications requiring good conductivity, such as in electronic devices.
2011 T651 Properties
- High strength: Due to the artificial aging process, 2011-T651 aluminum alloy has higher strength compared to the T3 condition, making it suitable for applications requiring high strength.
- Lower elongation at fracture: Compared to the T3 alloy, T651 alloy has poorer ductility, but it offers better strength and tensile properties.
- Relatively low electrical conductivity: The artificial aging process results in lower electrical conductivity, making it suitable for applications where high electrical conductivity is not required.
2011-T3 Aluminum vs. 2011-T651 Aluminum Mechanical Properties
| Property | 2011-T3 Aluminum | 2011-T651 Aluminum |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | 71 |
| Elongation at Break, % | 12 | 10 |
| Fatigue Strength, MPa | 120 | 120 |
| Poisson's Ratio | 0.33 | 0.33 |
| Shear Modulus, GPa | 27 | 27 |
| Shear Strength, MPa | 220 | 250 |
| Tensile Strength: Ultimate (UTS), MPa | 360 | 420 |
| Tensile Strength: Yield (Proof), MPa | 280 | 310 |
2011-T3 Aluminum vs. 2011-T651 Aluminum Thermal Properties
| Property | 2011-T3 Aluminum | 2011-T651 Aluminum |
| Latent Heat of Fusion, J/g | 390 | 390 |
| Maximum Temperature: Mechanical, °C | 190 | 190 |
| Melting Completion (Liquidus), °C | 640 | 640 |
| Melting Onset (Solidus), °C | 540 | 540 |
| Specific Heat Capacity, J/kg-K | 870 | 870 |
| Thermal Conductivity, W/m-K | 150 | 140 |
| Thermal Expansion, µm/m-K | 23 | 23 |
2011-T3 Aluminum vs. 2011-T651 Aluminum Electrical Properties
| Property | 2011-T3 Aluminum | 2011-T651 Aluminum |
| Electrical Conductivity: Equal Volume, % IACS | 39 | 35 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | 100 |
2011-T3 Aluminum and 2011-T651 Aluminum Applications
2011-T3 Aluminum Applications
Electrical and Electronics: Due to its higher electrical conductivity, it is suitable for components in electrical and electronic devices that require conductive properties.
Structural Components: Suitable for applications requiring high elongation at fracture, such as high-strength yet flexible structural parts in aircraft, automobiles, and similar fields.
2011-T651 Aluminum Applications
Aerospace and Automotive Industry: Due to its high strength, T651 aluminum alloy is commonly used in the manufacture of load-bearing structural components for aircraft, car bodies, and other parts that need to withstand significant loads.
Mechanical Parts: Used in mechanical components requiring higher mechanical performance, such as gears, shafts, and similar parts.