Marine aluminum alloys are mainly used in the fields of shipbuilding, ship structure and ship equipment, with good seawater corrosion resistance, strength, light weight, etc. Series 5000 and 6000 aluminum alloys are commonly used marine grade aluminum alloys, including 5052, 5059, 5083, 5086, 5383, 5454, 5754, 6061, 6063, 6082, etc. The selection of what grade marine aluminum to use needs to be based on the specific needs of the ship, including the usage of the ship, the navigation environment, the load capacity and other factors. Choosing the right marine grade aluminum alloy material can ensure the structural strength, corrosion resistance and service life of the ship, and improve the safety and economy of the ship.

What grade is marine aluminium alloys usually selected according to different parts and roles of the ship. The following are some common marine grade aluminum alloys.

5052 Aluminum Alloy: Marine grade aluminum 5052 has good corrosion resistance and is suitable for the manufacture of ship structures, hull plates and other parts.

5083 Aluminum Alloy: Marine grade aluminum 5083 has high strength and good corrosion resistance, it is an aluminum alloy material commonly used in shipbuilding, and is suitable for hull plates, ship hatches and other components.

5086 Aluminum Alloy: Marine grade aluminum 5086 has high strength and good corrosion resistance, and is suitable for the manufacture of ship structure, deck plates and other components.

5454 Aluminum Alloy: Marine grade aluminum 5454 is commonly used in hull bulkheads, chemical storage tanks, hull tanks and other fields.

6061 Aluminum Alloy: Marine grade aluminum 6061 has high strength and excellent processing performance, suitable for the manufacture of marine structural parts, hull fittings and so on.

6082 Aluminum Alloy: Marine grade aluminum 6082 is mainly used in the manufacture of hull webs, bulkheads, etc., as well as fittings and risers.

These marine grade aluminum alloys have good seawater corrosion resistance and high strength, and can meet the requirements for the use of ships in the marine environment. When selecting marine aluminum alloy, suitable aluminum alloy materials should be selected according to specific ship design and requirements to ensure the safety and reliability of ship structure. At the same time, attention needs to be paid to the processing technology and quality control of aluminum alloy to ensure the manufacture of marine grade aluminum products in line with the standards and requirements of ships.