Marine Aluminum and Ship Building Aluminum

Marine Aluminum and Ship Building Aluminum
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Aluminum alloys provide many excellent properties, meaning they are widely used in ship structures and other relevant parts. No matter large or small ships, aluminum alloys serve as excellent assets in the manufacturing process. DLS Aluminum can provide different grades of aluminum alloys for your ships, and they have the following features:

①Lightweight and high strength
Aluminum is a relatively lightweight metal, which is one of the most important factors in ship design because a lighter ship body means greater energy savings. Lightweight doesn’t necessarily mean low strength and some aluminum alloys are even stronger than steel.

②Corrosion resistance
When exposed to marine environments, overcoming the corrosion caused by salty water poses a great challenge for many materials. The natural oxidation process of aluminum provides excellent corrosion protection. Moreover, you can also enhance the resistance of the material by adding other protective coatings.

③Machinability
The machinability of aluminum alloys is an important reason why they are widely used in the shipbuilding industry. They can be processed into different shapes, and due to its easy processing, the cost is much lower than that of steel.

Application of different grades of aluminum alloys in ships
Alloy Status Features Main applications
5052 aluminum coil O/H14/H34 Medium strength, good corrosion resistance and formability, high fatigue strength Superstructure, auxiliary structure, little ship body
5083 aluminum plate O/H32/H116 Typical alloys for welding, highest strength in non-heat treatment alloys, good weldability, corrosion resistance and cryogenic property Main structure of ship body, LNG spherical tanks
5086 aluminum plate H116 Same weldability and corrosion resistance as 5083 aluminum plate Main structure of ship body
5454 aluminum plate O/H32 22% higher strength than 5052 aluminum plate, good weldability and corrosion resistance, ordinary formability Ship body structure
5456 aluminum plate O/H32 Similar with 5083 but higher strength, with stress corrosion cracking susceptibility Ship bottom and deck
1050/1020 aluminum foil H112/H12/H24 Low strength, good machinability, weldability and corrosion resistance, high surface treatment performance Inner decoration
3003/3203 aluminum strip O/H112/H12 10% higher strength than 1100, good formability, weldability and corrosion resistance Inner decoration
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