The selection of ship sheet materials is more stringent. At present, most of the aluminum alloy products such as 5083, 5086, 5454 and 5754 are used. In

practical applications, the advantages of marine aluminum alloys are very obvious. The first is the small specific gravity, which can reduce the weight of the ship, save energy and increase the load; secondly, it has good corrosion resistance, reduces the cost of oiling and extends the service life; thirdly, it has good welding and processing performance, which is good for post-processing; The waste is easy to recycle and can be recycled. At the same time, it does not burn and is safe to fire.

The 5083 aluminum alloy is a high-magnesium alloy with good strength in the non-heat treatable alloy, and good corrosion resistance and machinability. The surface is beautiful after anodizing. The arc welding performance is good. The main alloying element in the 5083 alloy is magnesium, which has good corrosion resistance and weldability, as well as moderate strength. Excellent corrosion resistance makes the 5083 alloy widely used in marine applications such as ships, as well as in automobiles, aircraft welding parts, and subway light rails.