The wide range of uses of 5-series aluminum and magnesium alloy

The wide range of uses of 5-series aluminum and magnesium alloy

Marine aluminium plates can be divided into deformed aluminium plates and cast aluminium plates according to the different manufacturing processes, as marine aluminium plates have special requirements on strength, corrosion resistance and weldability, so marine aluminium plates are mostly used in aluminium-magnesium alloy, aluminium-magnesium-silicon alloy and aluminium-zinc-magnesium alloy, of which 5-series aluminium-magnesium alloy is most widely used on ships, so what are the characteristics of 5-series marine aluminium plates?

5 series of marine aluminum plate mainly has 5083, 5086, 5456 these three. 6 series of alloy in seawater will occur in the intergranular corrosion, so the upper structure of the ship using more, 7 series of alloy disadvantage is poor corrosion resistance, so the use of the range is limited. From a comprehensive point of view, the 5 series marine aluminium plate is currently the most widely used and most promising aluminium plate products.

5083 aluminum plate can be seen as a representative product of 5 series of marine aluminum plate, state O, H111, H112, H116, H321, etc., 5083 aluminum plate alloy composition is: aluminum Al: balance, silicon Si: ≤ 0.40, copper Cu: ≤ 0.10, magnesium Mg: 4.0 ~ 4.9, zinc Zn: ≤ 0.25 manganese Mn: 0.40 ~ 1.0 titanium Ti: ≤ 0.15 chromium Cr: 0.05 to 0.25 Fe: 0 to 0.400. Based on such parameters, 5083 aluminium sheet has medium strength, good corrosion resistance and formability, high fatigue resistance, and is generally used as the main structure of ship hulls. Others, such as 5052, 5086, 5054 and 5456, are also mostly used in hull structures or pressure vessels, pipes, hulls and decks.

From the development of marine aluminum plate, at present, many aluminum processing manufacturers have begun to focus on the development of 5 series, 6 series of marine aluminum plate, increase scientific research, expand the scale of production, into the marine aluminum plate and other high-end manufacturing market. With innovation and production capacity to enhance, 5 series of marine aluminum plate will usher in greater development opportunities for aluminum processing transformation and upgrading to provide a broad space for development.