The reason why 5083 aluminum plate is often used in ship bulwarks is its excellent corrosion resistance. In the marine environment, structural parts such as ship bulwarks will be corroded by seawater, so materials with good corrosion resistance need to be used. 5083 aluminum plate performs well in seawater and can effectively resist the corrosion of seawater, thereby extending the service life of the ship.
The thickness, length and width of 5083 Aluminum plate for ship bulwark can be adjusted according to specific usage requirements and ship size. Generally speaking, the thickness of 5083 aluminum plates used for ship bulwarks is usually between 3-8mm, and the length and width are determined according to the ship size and specific usage requirements.
There are some differences in the application of 5083 aluminum plates in marine-grade and small and medium-sized ships. Marine-grade ships have higher requirements for corrosion resistance and strength of materials. Therefore, when manufacturing bulwarks and other parts, thicker aluminum plates are usually used and special treatments are performed, such as coatings, plating, etc., to improve corrosion resistance and fatigue resistance. Small and medium-sized ships have relatively low requirements for material corrosion resistance and strength. Therefore, when manufacturing parts such as bulwarks, thinner aluminum plates are usually used, and may be simply treated or not treated. In addition, the size of small and medium-sized ships is smaller, and the length and width of the aluminum plates that need to be used are also relatively small.

| Alloy | 5083 |
| Temper | O,H111,H112,H116, H24,H32,H321 |
| Thickness (mm) | 1.50-120 |
| Width (mm) | ≤3100 |
| Length (mm) | 1000-16000 |
| Standard | GB/T 3880, EN14286, EN485, ASTM B209, or according to customer’s special requirements |
| Certification | DNV, GL, ABS, CCS, BV, LR |
Chemical Composition
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | Ti | Zr | AL |
| 5083 | 0.4 | 0.4 | 0.1 | 0.40-1.00 | 4.00-4.90 | 0.05-0.25 | – | 0.25 | 0.15 | – | Remainder |
Mechanical Properties
| Alloy | Temper | Tensile strength Rm(Mpa) | Yield strength Rp0.2(MPa) | Elongation A(%) |
| 5083 | O/H111/H112 | ≥275 | ≥125 | ≥16 |
| H116 | H116 | ≥305 | ≥215 | |
| H321 | H321 | 305-385 | 215-295 |
Corrosion resistance: 5083 aluminum plate is a rust-proof aluminum plate that will not rust even when used in seawater. This feature can reduce maintenance costs such as oiling and extend the service life.
Strength and rigidity: 5083 aluminum plate has high yield strength and tensile strength, and can withstand greater pressure and impact. These features make ships safer and more stable when sailing at sea.
Processing performance: 5083 aluminum plate is easy to process in various forms such as cutting, stamping, cold bending, forming and cutting, making it convenient for manufacturing and maintenance.
Lightweight: Using 5083 aluminum plates can reduce ship weight, increase speed, reduce fuel consumption, and save costs.
Good welding performance: 5083 aluminum plates can be welded more easily, improving manufacturing efficiency. In addition, the streamlined hull can be maintained due to the similar performance of its welded joints.
Ship shell: 5083 aluminum plate can be used to manufacture ship shells, including hulls, cabins and decks. Due to its excellent corrosion resistance, 5083 aluminum plates can effectively protect ships from seawater corrosion.
Ship internal structure: 5083 aluminum plates can also be used to manufacture ship internal support structures, frames and partitions. These structural parts need to withstand greater pressure and impact, and the strength and toughness of 5083 aluminum plates can meet these requirements.
Original Source: https://www.flait-aluminum.com/Marine-grade-aluminum-sheet.html
Tag: 5083 aluminum plate