There is best aluminum for shipbuilding that is automatically the best for every shipbuilding project, because the appropriate material depends on hull design, structural loading, operating environment, fabrication methods, certification requirements, and budget. However, 5083 is one of the most widely recognized aluminum alloys for marine construction. Its popularity comes from its strong resistance to seawater corrosion, good weldability, useful strength, and relatively low density compared with steel. Different 5083 tempers may be selected depending on the required mechanical properties and applicable marine standard.