6061 aluminum alloy is a commonly used aluminum alloy with good mechanical properties and corrosion resistance, so it can usually be used to manufacture some parts and components of ships. However, whether it is suitable to use 6061 aluminum plate to make the whole hull depends on several factors:

Application environment: Vessels usually need to operate in seawater environment, the salt and humidity in seawater may have a corrosive effect on materials. Although 6061 aluminum alloy has some corrosion resistance, in harsh marine environments, additional corrosion protection measures may be required.

Size and Construction: The size and construction of the vessel are critical to the choice of materials. 6061 aluminum alloy can be used to manufacture parts of ships, such as hull frames, decks, hatches, etc., but whether it is suitable for the overall structure of large ships requires detailed engineering analysis.

Boat Type: Different types of boats have different material requirements. For example, material selection may vary for commercial vessels, yachts and small watercraft.

Design and Engineering Requirements: The design and engineering requirements of the vessel will directly affect the material selection. Materials must meet multiple factors such as strength, stiffness, stability, etc. to ensure the safety and performance of the vessel.

In summary, 6061 aluminum alloy can generally be used to manufacture some parts and assemblies of boats, especially in areas of boats that do not require a high degree of corrosion resistance. For the selection of suitable materials for use throughout the hull, consideration needs to be given to the service environment, size, construction, type and design requirements of the vessel.