Chemical Composition Ranges
| Alloy | Al | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti |
| 5083 | Balance | 0.40 | 0.40 | 0.10 | 0.40 – 1.0 | 4.0 – 4.9 | 0.05 – 0.25 | 0.25 | 0.15 |
| 6061 |
Balance
|
0.40 – 0.8 | 0.7 | 0.15 – 0.40 | 0.15 | 0.8 – 1.2 | 0.04 – 0.35 | 0.25 | 0.15 |
| 7075 | Balance | 0.40 | 0.50 | 1.2 – 2.0 | 0.30 | 2.1 – 2.9 | 0.18 – 0.28 | 5.1 – 6.1 | 0.20 |
Applications
- 5083：
- It has excellent corrosion resistance, especially in seawater and harsh chemical environments, so it is widely used in shipbuilding, such as the construction of ship hulls and decks.
- Due to its good weld-ability and high strength after welding, it is also used in the manufacture of pressure vessels, such as liquid tankers, refrigerated trucks, and refrigerated containers.
- It can be used in the production of truck bodies and beds, as well as rail cars, because it can withstand continuous stress and wear.
- In the aerospace field, it is used for some non-critical structural parts that require good corrosion resistance and moderate strength.
- 6061：
- It is widely used in the aircraft industry for manufacturing various components such as aircraft fuselages, wings, and structural parts, due to its good combination of strength, corrosion resistance, and machinability.
- In the marine field, it is used for making marine hardware, fittings, and some structural components, thanks to its excellent corrosion resistance in seawater.
- Commonly used in the construction industry for making building products such as doors, windows, curtain walls, and roofing materials, because of its good form-ability, corrosion resistance, and moderate strength.
- It is also favored in the automotive industry for manufacturing parts like car frames, engine components, and body panels, due to its lightweight and good mechanical properties.
- In the electrical field, it can be used to make electrical fittings and conductors, because of its relatively good electrical conductivity.
- 7075：
- It is one of the most important materials in the aerospace industry, widely used in the manufacture of critical components of aircraft, such as main load-bearing structures, wings, and landing gears, due to its extremely high strength and good toughness.
- In the military field, it is used to produce military equipment and weapons components that require high strength and reliability, such as missile parts and armored vehicles.
- It can also be used in some high-performance sports equipment, such as bicycle frames and racing car components, to take advantage of its high strength-to-weight ratio.
- In the mold manufacturing industry, 7075 aluminum alloy is used to make molds that require high precision and high strength, because of its excellent mechanical properties and dimensional stability after heat treatment.
