Aluminum alloy has a certain percentage of alloying elements, which can improve material properties. These percentages play an important role in distinguishing one alloy from another, aluminum alloys in the same series. 5052 aluminum sheet properties alloy element contains 97.25% Al, 2.5% Mg and 0.25% Cr, and its density is 2.68 g / cm 3 (0.0968 lb / in 3). Generally, 5052 aluminum alloy is stronger than 3003 aluminum, another general alloy.
5052 aluminum alloy is a non-heat-treatable alloy. To increase its strength, cold working or work hardening is required. Of course, the two are also different. When processing or permanently changing the shape (such as bending, forming, rolling, etc.), the strength of aluminum metal will increase, but the ductility will decrease. This is the result of the molecular structure of the metal, but for the sake of explanation, it is enough to know that there are some mechanical methods to make the aluminum alloy stronger. For example, H tempering can be used to work harden 5052 aluminum alloy.
Why the emphasis is on the corrosion resistance of 5052 aluminum alloy, because this performance is really excellent. In harsh environments, it has higher resistance.
A common phenomenon is that all aluminum alloys will form an oxide layer in the air or water environment to protect the aluminum from further reactions with the external environment. This is the oxide film. This oxide film has a certain degree of corrosion resistance. However, the size of corrosion resistance is different.
The size of the corrosion resistance is related to several factors: temperature, chemicals in the air and near-end working environment. However, even under unfriendly environmental conditions, the performance of 5052 aluminum is very good. The key reason is that it does not contain any copper, which means that it is not easy to corrode even in a salt water environment. You know, the salt water environment is more corrosive. Therefore, the marine and chemical applications will also use 5052 aluminum alloy as the preferred alloy, if it is compared with other aluminum alloys.
The ship’s construction and working environment have requirements for materials, and the basic requirements are corrosion resistance, weldability, and plasticity. Higher requirements include tensile strength, yield strength, elongation, impact resistance and so on. The aluminum alloys that meet these properties and are most used on ships and have the best effects include industrial pure aluminum, aluminum-magnesium alloys and 6-series aluminum-magnesium-silicon alloys, such as 5052 sheet aluminum, 5083 aluminum sheet, and 6061 aluminum sheet.
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