Alclad 7475 O T61 T761 Aluminum Sheet
7475 is a controlled toughness alloy developed by Alcoa with a zinc content ranging from about 5.2% to 6.2%. The high zinc content provides excellent strength and hardness characteristics to this alloy. In the same state, the typical fracture toughness of 7475 alloy sheet is approximately 40% higher than that of 7075 aluminum sheet.
7475 Alclad Aluminum sheet is a composite aluminum sheet composed of high-strength 7475 aluminum sheet covered by high-purity aluminum (Alclad). The pure aluminum provides better corrosion resistance, enhancing its durability and reliability. Its outstanding strength-to-weight ratio makes it widely used in aerospace engineering, such as in the manufacture of aircraft fuselages, wings, and other components.
Hot selling sizes of 7475 O T61 T761 Alclad aluminium sheet
| Description | Temper | Surface Treatment | Thickness/in | Size/in |
|---|---|---|---|---|
| 0.032" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.032 | 48x96 |
| 0.05" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.05 | 84x144 |
| 0.082" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.082 | 84x144 |
| 0.1" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.1 | 84x144 |
| 0.135" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.135 | 84x144 |
| 0.058" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.058 | 84x144 |
| 0.063" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.063 | 84x144 |
| 0.7" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.7 | 84x144 |
| 0.73" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.73 | 84x144 |
| 0.75" 7475 T61 Alclad Aluminum Sheet | T61 | Alclad | 0.75 | 84x144 |
| 0.08" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.08 | 84x144 |
| 0.05" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.05 | 84x144 |
| 0.073" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.073 | 84x144 |
| 0.075" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.075 | 84x144 |
| 0.08" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.08 | 84x144 |
| 0.09" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.09 | 84x144 |
| 0.1" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.1 | 84x144 |
| 0.125" 7475 T761 Alclad Aluminum Sheet | T761 | Alclad | 0.125 | 84x144 |
Mechanical properties of 7475 O T61 T761 Alclad aluminum sheet
| Temper | Specified thickness mm | Tensile strength Rm/MPa | Yield strength Rp0,2/MPa | Elongation min.% | Bend radiusa | |
|---|---|---|---|---|---|---|
| over | up to | min. | min. | A50 mm | 180° | |
| O | 1 | 1.6 | 250 | 140 | 10 | 2.0t |
| O | 1.6 | 3.2 | 260 | 140 | 10 | 3.0t |
| O | 3.2 | 4.8 | 260 | 140 | 10 | 4.0t |
| O | 4.8 | 6.5 | 270 | 145 | 10 | 4.0t |
| T761 | 1 | 1.6 | 455 | 379 | 9 | 6.0t |
| T761 | 1.6 | 2.3 | 469 | 393 | 9 | 7.0t |
| T761 | 2.3 | 3.2 | 469 | 393 | 9 | 8.0t |
| T761 | 3.2 | 4.8 | 469 | 393 | 9 | 9.0t |
| T761 | 4.8 | 6.5 | 483 | 414 | 9 | 9.0t |
Chemical composition of 7475 O T61 T761 Alclad aluminum sheet
| Element | Composition % |
|---|---|
| Si | 0.1 |
| Fe | 0.12 |
| Cu | 1.2-1.9 |
| Mn | 0.06 |
| Mg | 1.9-2.6 |
| Cr | 0.18-0.25 |
| Zn | 5.2-6.2 |
| Ti | 0.06 |
| Each | 0.05 |
| Total | 0.15 |
| Al | Rem |
Applications of 7475 O T61 T761 Alclad aluminum sheet
Aircraft fuselage/wing
The 7475 Alclad aluminum sheet is commonly used in the manufacturing of crucial aircraft components such as the fuselage, wing structures, and other key parts. Its exceptional strength-to-weight ratio ensures that the aircraft structure remains sturdy yet lightweight.
Landing gear/support structures
7475 Alclad aluminum sheet is also frequently employed in the production of aircraft landing gear and other support structures. Its outstanding fracture toughness makes it an ideal material choice for these support components.
Spacecraft casings
In aerospace engineering, the 7475 aluminum sheet finds wide application in fabricating spacecraft components and spacecraft casings, such as satellite casings. Its high strength and corrosion resistance enable it to withstand extreme environmental conditions and critical engineering stresses.
High-strength structural components
Due to its high strength and excellent fracture toughness, the 7475 Alclad aluminum sheet is also used in the manufacture of other high-strength structural components inside aircraft, including frames, connectors, and support systems.
Other alclad aluminum plate in Chalco
