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What Are Features of Automotive Aluminum 5754

The chemical composition of 5754 aluminum sheet is based on aluminum, with a magnesium content of 2.6%-3.6%, supplemented by trace elements such as manganese and silicon, forming a rigid and flexible alloy system.

Its tensile strength can reach 165-265MPa, which not only meets the strength requirements of body structural parts, but also maintains the advantage of lightweight. In terms of corrosion resistance, the addition of magnesium makes it perform well in humid and marine environments, effectively resists oxidation corrosion, and prolongs the service life of parts.

aw 5754 h111.jpg

The machinability of 5754 alloy is also outstanding. Whether it is shearing, bending or complex forming, 5754 aluminum alloy can easily cope with it. With a variety of heat treatment processes (such as rapid annealing or low-temperature annealing), the material state can be adjusted according to demand to meet the process requirements of different components. The welding performance is stable, which reduces energy consumption and costs in the manufacturing process and further improves production efficiency.

For 5754 aluminum alloy, its typical tempers include H111, H112, H321, etc. The tensile strength of aw 5754 h111 is about 180-220MPa, and the yield strength is 120-150MPa, which is between H112 (harder) and O state (fully annealed). The elongation is about 12%-15%, which is better than the strengthening state such as H321, and is suitable for complex forming (such as the deep drawing process of body panels).

In-depth application in the automotive field

In automobile manufacturing, 5754 aluminum alloy is mainly used in the following scenarios:

Body structure parts: 5754 alloy is used in door inner panels, hood supports and other parts to reduce the weight of the vehicle through lightweight design and improve fuel efficiency. Its good ductility and impact resistance ensure the structural integrity during collision.

Battery tray and safety components: The tray of the battery pack of new energy vehicles uses 5754 aluminum alloy, which uses its high corrosion resistance and thermal conductivity to ensure the safe operation of the battery pack. In addition, in safety components such as bumpers and anti-collision beams, the alloy enhances the passive safety performance of the vehicle by optimizing the balance between strength and toughness.

Sealing and decorative parts: For parts such as automotive molds and seals that require high precision and weather resistance, 5754 aluminum alloy can meet the appearance requirements and resist long-term wear with surface treatment processes (such as oxidation and painting).

As the global carbon neutrality goal is promoted, the demand for lightweight materials in the automotive industry continues to grow. 5754 automotive aluminum has become an ideal choice to replace traditional steel due to its high recyclability and significant environmental protection characteristics. Especially in the field of new energy vehicles, the dual needs of lightweight battery packs and structural safety have promoted the large-scale application of 5754 alloy.

Original Source:https://www.autoaluminumsheet.com/a/what-are-features-of-automotive-aluminum-5754.html

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