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The performance and advantages of marine aluminum plate

Edit:admin Date: 2018-02-24 14:06
Marine aluminum plates can be divided into deformed aluminum plates and cast aluminum plates according to different manufacturing processes. Because marine aluminum plates have special requirements on strength, corrosion resistance and weldability, marine aluminum plates are mainly made of aluminum-magnesium alloy, aluminum-magnesium- Silicon-based alloys and aluminum-zinc-magnesium-based alloys, of which 5 series of aluminum - magnesium alloy most widely used in the ship, then, what’s the features of 5 series marine aluminum?
5 series marine aluminum are mainly 5083, 5086, 5754. 6 series alloy in the seawater will occur intergranular corrosion, so the ship superstructure more use, 7 series alloy disadvantage is poor corrosion resistance, so the use of limited. Taken together, the 5 Series marine aluminum is the most widely used and most promising aluminum products.

5083 aluminum plate can be seen as a representative of the 5 series of marine aluminum products, the state O, H111, H112, H116, H321 and so on, 5083 aluminum alloy composition: aluminum Al: balance, Si Si ≤ 0.40, Cu Cu ≤ 0.10, Magnesium Mg: 4.0-4.9 Zinc Zn: ≤0.25 Manganese Mn: 0.40-1.0 Ti Ti: ≤0.15 Chromium Cr: 0.05-0.25 Fe Fe: 0-0.400, 5083 The aluminum plate has medium strength, good corrosion resistance and good formability, Fatigue is high, generally used as the main structure of the hull. Other aluminum plate such as 5052,5086,5454,5456, are also used in hull structures or pressure vessels, pipes, hulls and decks.
In general, the thickness of the plate is determined by the structure of the hull, the size of the ship and the location of the use of such parts, from the perspective of lightweight hull, the general use of sheet as far as possible, but should also consider the use of time plate corrosion depth, commonly used Plates have more than 1.6mm sheet and 30mm thick plate. There are also some special specifications according to the shipyard contract plate. To prevent slippery, the deck is patterned aluminum.
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