Ship aluminum alloy can be divided into deformed aluminum alloy and cast aluminum alloy according to different manufacturing processes. Because marine aluminum alloys have special requirements on strength, corrosion resistance, weldability, etc., marine aluminum alloys mostly use aluminum-magnesium alloys, aluminum-magnesium-silicon alloys, and aluminum-zinc-magnesium alloys. Among them, aluminum-magnesium alloys are most widely used on ships. The following Hefei Analu International Trading Co., Ltd. introduces the types, characteristics, and uses of marine aluminum alloys according to the actual use of aluminum alloys.
Features and uses of ship aluminum alloy
Ship aluminum alloy can be divided into aluminum alloy for hull structure and aluminum alloy for outfitting according to usage. The aluminum alloys used in the ship hull structure are mainly three alloys of 5083, 5086, and 5456. 6000 series alloys are mainly used in the superstructure of ships because of intergranular corrosion in seawater. Outfitted aluminum alloys mainly use extruded profiles. The strength and process performance of 7000 series alloys after heat treatment is superior to 5000 series alloys. They have broad application prospects in shipbuilding. They are mainly used in naval superstructures, such as extrusion structures, armor plates, etc. However, the shortcoming of 7000 alloy is poor resistance to stress corrosion, so it limits the use of this series of alloys.
Marine aluminum alloys can be divided according to product types, plates, profiles, tubes, rods, forgings, castings. The company’s current aluminum alloy product types are mainly plates and strips.