2017 T42 Aluminum
2017-T42 aluminum is suitable for applications that require high strength but less strict requirements for ductility, particularly in the aerospace and high-strength structural fields.
2017-T42 Aluminum is an aluminum alloy state (T42) that has been solution heat-treated and naturally aged. This treatment improves the strength and durability of the aluminum alloy, but relative to other variants, the strength of 2017-T42 aluminum is second only to the highest strength variants, and its ductility is lower.
2017 aluminum alloy is a copper-based aluminum alloy, known for its excellent strength and good corrosion resistance. It is commonly used in the aerospace, automotive, and other high-strength structural components.
In the T42 state, 2017 aluminum is solution heat-treated, allowing it to rapidly dissolve and evenly distribute the primary elements within the alloy. Afterward, the aluminum alloy undergoes natural aging, a time-based process that restores the material's hardness and strength.
As a solution-treated and naturally aged aluminum alloy, 2017-T42 aluminum, though lower in strength and having poorer ductility, still possesses high tensile strength, good fatigue strength, and cutting strength.
Its thermal and electrical properties also make it suitable for high-temperature environments, though it is slightly inferior in terms of electrical conductivity.
2017 T42 Aluminum Mechanical Properties
| Property | 2017-T42 Aluminum |
| Elastic (Young's, Tensile) Modulus, GPa | 71 |
| Elongation at Break, % | 12 |
| Fatigue Strength, MPa | 110 |
| Poisson's Ratio | 0.33 |
| Shear Modulus, GPa | 27 |
| Shear Strength, MPa | 240 |
| Tensile Strength: Ultimate (UTS), MPa | 400 |
| Tensile Strength: Yield (Proof), MPa | 230 |
2017 T42 Aluminum Thermal Properties
| Property | 2017-T42 Aluminum |
| Latent Heat of Fusion, J/g | 390 |
| Maximum Temperature: Mechanical, °C | 190 |
| Melting Completion (Liquidus), °C | 640 |
| Melting Onset (Solidus), °C | 510 |
| Specific Heat Capacity, J/kg-K | 880 |
| Thermal Conductivity, W/m-K | 150 |
| Thermal Expansion, µm/m-K | 24 |
2017 T42 Aluminum Electrical Properties
| Property | 2017-T42 Aluminum |
| Electrical Conductivity: Equal Volume, % IACS | 38 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 |
Chemical Composition of 2017 T42 Aluminum
| Element | Composition(%) |
| Al | REM |
| Si | 0.20-0.80 |
| Fe | ≤0.70 |
| Cu | 3.50-4.50 |
| Mn | 0.40-1.0 |
| Mg | 0.40-0.80 |
| Cr | ≤0.10 |
| Zn | ≤0.25 |
| Ti | ≤0.15 |
| other(each) | ≤0.05 |
| other(total) | ≤0.15 |
2017 T42 Aluminum Applications
Aerospace
2017-T42 aluminum is widely used in the aerospace industry due to its excellent strength and corrosion resistance. Especially in aircraft frames and load-bearing structures, 2017-T42 aluminum provides sufficient mechanical strength and durability to withstand various stresses in high-pressure and high-temperature environments, ensuring the safety and stability of the structure. It performs particularly well in the fuselage, wings, and other components that bear significant loads.
Automotive Industry
2017-T42 aluminum is widely used in the automotive industry for high-strength automotive components. By reducing the weight of vehicles, this aluminum alloy improves fuel efficiency and overall performance, while also enhancing the structural strength of the vehicle. Especially in the vehicle's body frame, suspension system, and safety structural components, 2017-T42 aluminum provides ideal mechanical properties, ensuring the safety of the vehicle in extreme situations such as collisions.
Mechanical Structural Components
2017-T42 aluminum plays an important role in mechanical structural components due to its high strength. It is widely used in equipment and structures that need to bear large mechanical loads, such as heavy machinery, compressors, and pumps. Due to its high strength, 2017-T42 aluminum can maintain a long service life in harsh environments, making it suitable for critical components of various industrial equipment, especially in applications requiring high load and high durability.
Shipbuilding
2017-T42 aluminum is also used in the shipbuilding industry, particularly in ship structures requiring high mechanical performance. As an aluminum alloy with high strength and corrosion resistance, 2017-T42 aluminum plays a vital role in the hull structure, decks, and ship frames. It helps ships resist corrosion in marine environments and can bear significant mechanical loads, ensuring the safety and stability of the vessel.