The 5083 aluminum plate belongs to the aluminum alloy group containing magnesium, with small amounts of manganese and chromium. It is highly resistant to corrosion from seawater and industrial chemicals, and retains exceptional strength even after welding. This product is commonly referred to as marine aluminum plate 5083, due to its widespread use in marine shipbuilding. The excellent properties of 5083 aluminum make it an ideal material for marine vessels, cruises, yachts, liners, and even submarines.
The most popular variants of 5083 aluminum for marine applications include 5083-H116, 5083-H111, 5083-H112, and 5083-H321 aluminum plates. Additionally, 5083 aluminum sheets are used in the manufacturing of tankers, cars, trains, fuel tanks, as well as vehicle roofing and flooring.
Specifications of 5083 aluminium plate
| Alloy | Temper | Thickness (mm) | Width (mm) | Application |
| 5083 | O/H111/H112/H116/H321 | 3-10 | ≤2600 | shipbuilding |
| 5083 | O/H111/H112/H116/H321 | 10-50 | ≤3600 | Marine, ship |
| 5083 | O, H111 | 3–10 | ≤2600 | tanker |
| 5083 | O, H12, H14, H16, H18, H19, H22,
H24, H26, H28, H32, H34, H36, H38, H111, H112, H114, H116, H321
|
0.5-500 | 20-2650 | LNG storage tanks, gas storage cylinders, GIS shells, car body skins, flange materials, etc. |
Chemical Composition of 5083 aluminum sheet plate
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Zr | Ti |
| 5083 | 0.4 | 0.4 | 0.1 | 0.4-1.0 | 4.0-4.9 | 0.05-0.2 | 0.25 | – | – |
Mechanical properties of marine grade 5083 aluminium plate
| Alloy | Temper | Tensile strength Rm(Mpa) | Yield strength Rp0.2 (Mpa) | Elongation A (%) | Exfoliation corrosion mg/cm2 | Intergranular corrosion | Standard |
| 5083 | O/H111/H112 | ≥275 | ≥125 | ≥16 | - | - | EN485 ASTM B928 |
| 5083 | H116 | ≥305 | ≥215 | ≥10 | ≤PB | ≤15 | |
| 5083 | H321 | 305-385 | 215-295 | ≥12 | ≤PB | - |
Aluminum 5083 is an alloy renowned for its excellent corrosion resistance, high strength, and good weldability, making it a favored choice across various industries. However, deciding between H111 and H321 tempers can be confusing. In this post, we will compare the differences between aluminum 5083 H111 and H321 to help you choose the best temper for your needs.
What is Aluminum 5083 H111?
Aluminum 5083 H111 is a heat-treated alloy with a stable temper, offering excellent strength and corrosion resistance. The temper is achieved by annealing the alloy at approximately 650°C, followed by a controlled cooling process. This results in a material that is relatively soft and ductile, making it easy to form and bend. Thanks to its excellent weldability and resistance to stress corrosion cracking, aluminum 5083 H111 is commonly used in marine applications such as hulls and decks.
What is Aluminum 5083 H321?
Aluminum 5083 H321 is a strain-hardened alloy with a stable temper, providing enhanced strength and corrosion resistance. This temper is achieved by heating the alloy to around 510°C and then quenching it in cold water. The result is a material that is much stronger and stiffer than H111, making it suitable for applications requiring high toughness and rigidity. Aluminum 5083 H321 is commonly used in aerospace and defense industries, where performance under extreme conditions is critical.
Key Differences Between Aluminum 5083 H111 and H321
The primary difference between H111 and H321 lies in the manufacturing process and the resulting properties. H111 is annealed, making it softer and more ductile, while H321 is strain-hardened, resulting in increased strength and rigidity. H111 has lower yield strength but offers better formability and weldability, whereas H321 provides higher yield strength but has lower elongation and fracture toughness. When selecting the appropriate temper, it's essential to consider factors like load, environmental conditions, and the specific manufacturing process.
Applications
Aluminum 5083 H111 is widely used in marine applications, such as hulls, decks, and superstructures, due to its excellent weldability and resistance to stress corrosion cracking. It is also used in industries like transportation, construction, and oil and gas, where high strength and corrosion resistance are required. On the other hand, aluminum 5083 H321 is commonly used in aerospace and defense sectors for applications such as aircraft fuselages, missile components, and armored vehicles, where high toughness and rigidity are essential.
Conclusion
In conclusion, aluminum 5083 is a highly versatile alloy with exceptional strength, corrosion resistance, and weldability. The choice between H111 and H321 tempers depends on your specific application needs. Aluminum 5083 H111 is a softer, more ductile temper suited for marine and general industrial use, while aluminum 5083 H321 is a stronger, stiffer temper designed for high-performance applications in aerospace and defense. With this knowledge, you can make an informed decision to ensure optimal performance from your aluminum 5083 alloys.
