5083 Aluminum Plates

 

5083 aluminum plates are high-strength aluminum alloys primarily composed of aluminum, magnesium, and trace amounts of manganese and chromium. The alloy exhibits a tensile strength of around 275–350 MPa, with a yield strength of approximately 125–275 MPa, depending on the temper. Additionally, it has a Brinell hardness of 75 HB, and a density of approximately 2.66 g/cm³. The alloy also displays good thermal conductivity at around 117 W/m·K, ensuring effective heat dissipation in various applications, while its thermal expansion coefficient is 24.2 µm/m·K, indicating moderate expansion with temperature changes.

 

 

Corrosion Resistance
This property stems from the high magnesium content in 5083 aluminum, which creates a passive oxide layer on the surface, protecting the material from corrosion, especially in saline or chemically harsh environments. This reduces maintenance costs and extends the lifespan of structures exposed to water, such as ships and offshore platforms. It is widely used in shipbuilding, marine components, and chemical processing tanks where prolonged exposure to corrosive environment like seawater is expected.

 

High Strength
The alloying elements like magnesium, manganese, and chromium contribute to the enhanced strength of 5083 aluminum by altering its microstructure. The magnesium atoms distort the aluminum lattice, making it harder for dislocations to move, which increases the alloy's overall strength. Manganese and chromium form intermetallic compounds with aluminum that serve as barriers to dislocation movement, further enhancing the alloy's ability to withstand stress. This combination of alloying elements ensures that the material can endure significant stress and load without deformation, making it highly reliable under demanding conditions. It is ideal for constructing pressure vessels, vehicle bodies, and load-bearing structures in ships, where high strength is essential for safety.

 

Good Weldability
5083 aluminum has low cracking susceptibility during welding largely due to its high magnesium content. Magnesium in the alloy helps prevent the development of hot cracks. Hot cracking, also known as solidification cracking, occurs when the material cools and solidifies unevenly, leading to stress and fractures. This ensures that welded joints retain their strength post-welding without requiring additional heat treatments, simplifying the fabrication process. This makes 5083 aluminum ideal for welded structures like ship hulls, storage tanks, and pipelines, where welding efficiency and the ability to retain strength at welded joints are critical for structural integrity.

 

Hardness
The Brinell hardness of 5083 aluminum is approximately 75 HB, which provides moderate wear resistance. This hardness level results from the alloy's balanced composition, particularly its magnesium and manganese content, which strengthen the aluminum matrix and improve its ability to resist surface deformation and abrasion. In industrial machinery, 5083 aluminum plates are used for parts like conveyor belts and rollers that are in constant contact with other materials. In marine environments, it is used in components such as hulls and deck structures, which are exposed to abrasive forces from water and particulate matter.

 

 

Alloy grade	5083 aluminum plate - anti rust aluminum
Material Status	O, H111, H112, H116, H321
Thickness (mm)	0.15-600
Width (mm)	100-20000
Length (mm)	500-10000
Typical Uses	Ships, cars, aircraft welding parts etc.

 

Tensile strength σ B (MPa)	Yield strength σ 0.2 (MPa)	Elongation rate δ 5%	Hardness (HB)
275	125	10	75

 

Component	Al	Si	Cu	Mg	Zn	Mn	V	Fe
Content	99％	0.40	0.10	4.0-4.9	0.25	0.035	/	0.40

 

 

 

 

 

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