5083 aluminum plate for ship porthole

The 5083 aluminum plate, often positioned on the ship’s perimeter, is specifically tailored for ship portholes. To endure the rigorous marine environment, it’s imperative to employ this aluminum grade, renowned for its corrosion resistance and robust anti-rust capabilities. Our 5083 aluminum plate retains its strength post-welding, boasts exceptional high-strength yet low-ductility fracture properties, and excels in corrosion resistance and rust prevention. We customize ship window sizes to cater to the unique design needs of rafters and pens.

When it comes to portholes, the selection of aluminum alloy varies depending on the application. For instance, 5083 aluminum plates are commonly preferred for larger portholes or those that are subjected to rigorous marine conditions. Conversely, 6061 aluminum plates are often used for smaller and medium-sized portholes, or those found on ships navigating less severe marine environments. The decision ultimately hinges on factors such as the porthole’s dimensions, the specific maritime environment, and the ship’s unique requirements. We invite you to get in touch with us for your customized order.


Specification of 5083 Aluminum Plate for Ship Porthole

Alloy 5083
Temper O,H111,H112,H116,H24,H32,H321
Thickness (mm) 1.50-120
Width (mm) ≤3100
Length (mm) 1000-16000
Certificate DNVGL,ABS,LR,CCS
Surface treatment Anodizing, spraying or other surface treatment


Chemical Composition

Alloy Si Fe Cu Mn Mg Cr Ni Zn Ti Zr AL
5083 0.40 0.40 0.10 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 ≥305 ≥215 ≥10
H321 305-385 215-295 ≥12


Features of 5083 Aluminum Plate for Ship Porthole
●Good corrosion resistance

●Good welding performance

●High strength


●Ease of processing

Application of 5083 Aluminum Plate for Ship Porthole
1. Portshole frame: 5083 aluminum plate can be easily processed into porthole frames of various shapes and sizes. Its high strength and corrosion resistance ensure the long-term stability of the porthole frame in the marine environment.

2. Porthole glass installation bracket: Ship portholes usually require glass as a light-transmitting material. 5083 aluminum plates can be used as brackets and fixings for glass installation, providing strong support and fixation.

3. Surface decoration of portholes: The external decoration of ship portholes usually needs to consider aesthetics and anti-corrosion and anti-rust properties. 5083 aluminum plates can be used as decorative materials on the surface of portholes, providing a beautiful appearance and excellent corrosion resistance.
4.Porthole sealing gasket support: The support made of 5083 aluminum plate can provide solid support and stability during the installation process of the porthole, and can perfectly match the hull structure to ensure the sealing effect.

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