What Are The Advantages of Aluminium Boat Hulls

As one of the important fishing equipment, fishing boats play a key role in the development of fishery. Japan and European countries began to develop all-aluminum fishing boats in the 1950s. So far, Japan has more than 3,000 aluminum alloy fishing boats, ranking first in the world.

Although the number of aluminum alloy boats in Europe is not large, many shipyards have great hopes in building aluminum alloy boats. Most of the boats built with aluminum alloy in France and Norway are sightseeing boats and speedboats.

Comparative analysis of mechanical properties

Marine steel: Steel has the highest strength, moderate elastic modulus, and isotropic physical properties. It has the advantages of wear resistance, collision resistance, aging resistance, and easy processing and molding. It is suitable for the construction of large ocean-going fishing vessels.

Aluminum alloy: Compared with steel, the large aluminum sheet metal has lower tensile strength, lower density, and higher specific strength. The advantages of using them in building medium-sized fishing boats are more obvious. However, aluminum alloy materials have poor wear resistance, and wear-resistant materials should be installed in the contact parts between fishing gear and fishing boats.

FRP: Compared with wooden materials, FRP materials have higher specific strength, are easier to process and form, can be built according to fluid mechanics linear shapes, and have strong corrosion resistance. They have more advantages in the application of medium and small fishing boats and can replace wooden fishing boat.

However, the bending modulus and layer shear strength of FRP are relatively low, and it is not wear-resistant or collision-resistant. Parking in ordinary fishing ports or shoals will accelerate hull damage. Therefore, using FRP fishing boats must have a dedicated fishing port.

Polyethylene: In the construction of small fishing boats and micro fishing boats, polyethylene materials can completely replace the use of steel mesh cement composite materials due to their advantages such as high specific strength and low density. However, polyethylene materials also have problems such as being not wear-resistant, flammable, and prone to aging. Proper use and maintenance are required to ensure the service life of polyethylene fishing boats.

Economic comparative analysis

Among them, wooden fishing boats have low construction costs and low initial investment, but have high operating costs and low output values, resulting in poor economic benefits. Coupled with high accident rates, they seriously increase investment risks.

Steel fishing boats will become mainstream in the future due to their moderate cost and high output value; steel mesh cement fishing boats have low construction and operating costs and high output value, making them suitable for individual fishermen to choose.

Although the cost of fiberglass fishing boats is high, its comprehensive economic benefits are much higher than those of the other three materials based on analysis of service life, use cost and production output value.

Aluminum alloy fishing boats have high specific strength and high recycling value. Their economic benefits will be greatly improved, and they are an important supplement for fishing boat hull construction materials. 5052, 5083, 5383 and 5083 aluminum sheets are often used to make aluminum hulls. Welcome to leave message below to inquire sheet of aluminum cost.

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