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Performance and Application of 5000 Series shipbuilding aluminum plate

Edit:admin Date: 2017-03-08 09:10
Shipbuilding aluminum plate according to the different manufacturing process can be divided into deformation of aluminum and cast aluminum alloy, due to shipbuilding aluminum plate on the strength, corrosion resistance, weldability and other special requirements, so the choice of shipbuilding aluminum plate, Aluminum-magnesium-silicon alloy and aluminum-zinc-magnesium alloy, of which 5000 series of aluminum - magnesium alloy on the most widely used in ships.
What are the characteristics of 5000 series shipbuilding aluminum alloy?
5000 series of shipbuilding aluminum alloy mainly 5083, 5086, 5456 these three. 6000 series alloy in the seawater will occur between the intergranular corrosion, so the ship superstructure use more, 7000 series alloy shortcomings is poor corrosion resistance, so the use of limited. On the whole, 5000 series of shipbuilding aluminum alloy plate  is currently the most widely used, the most promising aluminum products.

5083 series aluminum alloy can be regarded as representative products of 5000 series shipbuilding aluminum plate. The state is O, H111, H112, H116, H321 and so on. The composition of 5083 aluminum alloy is aluminum: balance, silicon Si: ≤0.40, copper Cu: ≤0.10 , Magnesium Mg: 4.0 to 4.9, zinc Zn: ≤0.25 Mn Mn: 0.40 to 1.0 Titanium Ti: ≤ 0.15 Cr Cr: 0.05 to 0.25 Fe: 0 to 0.400, 5083 Aluminum alloy has moderate strength, good corrosion resistance and good formability , High resistance to fatigue, generally used as the main structure of the hull. Others such as 5052, 5086, 5454, 5456, etc., are also used in hull structures or pressure vessels, pipes, hulls and decks.
In general, the thickness of the use of the plate is determined by the hull structure, the ship's specifications and the use of parts, etc., from the perspective of the weight of the hull, the general use of sheet metal, but also should be considered in the use of time the depth of corrosion of the plate, Plate has more than 1.6mm sheet and 30mm above the plate. There are also some special specifications for the use of shipyard contracts. For non-slip, deck with pattern plate.

From the development of marine aluminum, at present, many domestic aluminum manufacturers have begun to focus on research and development 5000 series, 6000 series of marine aluminum, increase scientific research, expand production scale, into the marine aluminum and other high-end manufacturing market. To the national aluminum processing enterprises ¬-Mingtai Aluminum, for example, its 5083, 5086, 5454 and other aluminum by 2015 China Classification Society certification, in October and passed the Norwegian classification societies certification, made foreign trade aluminum " World license ", which will be the company's marine aluminum market to open up a broader space for development, but also for the domestic shipboard enterprises to upgrade and play a positive role model.
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