What are the features of marine grade aluminum plate in ships?

marine grade aluminum plate deformation according to the different manufacturing process can be divided into aluminum plate and the casting aluminum plate, due to Marine aluminum plate on the strength, corrosion resistance, weldability, etc have special requirements, so the Marine aluminum plate with aluminum – magnesium alloy, aluminum – magnesium – silicon alloy and aluminum and zinc, magnesium alloy, including 5 series aluminum – magnesium alloy in the most widely used on ships, so, 5 series Marine aluminum plate what are the characteristics?

What is marine aluminum plate

The five series of Marine aluminum plates mainly include 5083, 5086 and 5456. 6 series of alloy will have intercrystalline corrosion in seawater, so ship superstructure is used more, while 7 series of alloy has poor corrosion resistance, so the range of use is limited. To sum up, 5-series Marine aluminum plate is the most widely used and promising aluminum plate product at present.

5083 aluminum plate can be seen as representatives of the 5 series Marine aluminum products, the state has O, H111, H112, H116, H321, 5083 aluminum alloy components: aluminum Al: allowance, Si Si: 0.40, or less copper Cu: 0.10 or less, magnesium Mg: 4.0 ~ 4.9, zinc, zinc, manganese acuities were 0.25 Mn: 0.40 ~ 1.0 Ti Ti: 0.15 or less chromium Cr: 0.05 ~ 0.25 iron Fe: 0 ~ 0.400, 5083 aluminum plate has medium strength, corrosion resistance and good formability, high resistance to fatigue, generally used as a main hull structure. Others, such as 5052, 5086, 5454, and 5456, are also used in the hull structure or pressure vessels, pipelines, hull and deck.

5083 marine grade aluminum plate sheet

Generally speaking, the thickness of the plate is determined by the hull structure, ship specification and service location. From the perspective of hull lightening, thin plates are generally used as much as possible. However, the depth of plate corrosion during the service time should also be considered. There are also some special specifications of boards to be used under the shipyard contract. To prevent slipping, the deck is made of decorative board.

Marine aluminum plate is the emerging market for R & D applications of aluminum products. Shipboard production capacity has also become an important indicator of the comprehensive strength of various aluminum processing enterprises. With the upgrading of domestic aluminum production process, leading enterprises in Henan Province – Haomei aluminum plate production scale gradually expanded, increasingly rich types of alloys, product performance has reached the international advanced level.


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