The 5754 thick aluminum plate is applied to the ship. The aluminum has very good corrosion resistance, which reduces the corrosion of the seawater atmosphere to a certain extent and prolongs the service life of the ship. At the same time, the weight of aluminum is 1/3 of steel, but the strength is double that of steel. This reduces the ship’s own weight, which speeds up the ship speed, reduces fuel and increases the load. In addition, the 5754 thick aluminum plate has good processing properties and weldability, which greatly improves the safety of the ship