5083 o aluminum plate sheet

5083-O aluminum alloy is a variant of 5083 aluminum alloy processed in the annealed state. Compared to other variants of 5083 aluminum alloy, 5083-O exhibits the highest ductility.

5083 O aluminum alloy is a magnesium-aluminum alloy (5000 series) in the fully annealed (soft) condition. It is well known for its excellent corrosion resistance (especially in seawater environments), good formability, high ductility, and relatively high strength among similar alloys. Due to its combination of toughness and weldability, it is widely used in marine applications such as shipbuilding, armor, fuel tanks, and transportation, making it an ideal choice for structural components that require resistance to marine corrosion and heavy forming.

What is a 5083-O material?

“5083-O aluminum alloy” refers to an aluminum-magnesium alloy with the designation 5083 that has been fully annealed (O temper). Its core characteristic is relatively low strength, but very good plasticity (elongation capability) and excellent processing and forming performance.

5083-O aluminum alloy is suitable for marine environments and low-temperature applications. The O temper provides the best plasticity, making it an ideal choice for complex formed parts.

• If higher strength is required, H temper products can be selected.
• If ultimate corrosion resistance and welding performance are desired, 5083-O can be chosen.

5083 o aluminum plate sheet size

5083 O Aluminum Characteristics

• Composition: The main component is aluminum (Al), containing a high amount of magnesium (Mg) (4–4.9%) and manganese (Mn) (0.4–1%), as well as trace elements.
• Temper (O): Indicates annealed (soft) condition, providing maximum ductility and formability, but lower strength than harder tempers (such as H32).
• Properties: High strength-to-weight ratio, excellent weldability, outstanding corrosion resistance (seawater), and good toughness.
• Excellent corrosion resistance: Particularly outstanding resistance to seawater corrosion, which is a general advantage of 5083 alloy.
• Good weldability: Welded joints maintain high strength and stable performance.
• Non-heat-treatable strengthening: Its strength can only be increased through cold working (such as rolling and stretching), rather than through quenching and aging heat treatment like some automotive aluminum alloys.

5083 o aluminum plate sheet chemical composition

5083 o aluminum plate sheet mechanical properties

Equivalent to 5083 o aluminum

UNS A95083; ISO AlMg4.5Mn; Aluminium 5083-O; AA5083-O; Al5083-O

Performance of 5083-O Aluminum Plate Sheet

• Ductility: Highest ductility. 5083-O aluminum alloy exhibits the highest ductility among all 5083 series aluminum alloys.
• Plasticity: With excellent plasticity, it can withstand significant deformation without cracking or breaking, making it suitable for various complex shape processing.
• Machining Performance: The good ductility of 5083-O aluminum alloy ensures excellent performance in machining processes, such as cutting, drilling, and turning.
• Formability: Suitable for deep drawing and other forming operations, capable of being processed into various complex component shapes.
• Strength: Although 5083-O aluminum alloy has lower strength compared to other states of 5083 aluminum alloy, its excellent ductility compensates for this.
• Toughness: Exhibits good toughness and impact resistance, suitable for applications requiring impact resistance.

5083 O Aluminum Processing Performance

• O temper: Excellent plasticity, suitable for deep drawing, bending, stamping, and other forming processes.
• Non-heat-treatable, but strength can be improved through cold working (H temper).
• Machinability is average; specialized cutting tools are required.
• Can be anodized to improve surface hardness and corrosion resistance.

Applications of 5083-O Aluminum Plate Sheet

• Marine: Ship and yacht hulls, decks, fuel tanks, piping, and other structures.
• Transportation: Railway vehicles, vehicle bodies, fuel tankers, and truck components.
• Aerospace: Fuel tanks and pipelines requiring high strength and corrosion resistance.
• Industry: Pressure vessels, cryogenic storage tanks, and emergency equipment.

5083-O Aluminum Plate for Shipbuilding

• Application Areas: 5083-O aluminum plate is widely used in shipbuilding and marine engineering. This is mainly because it exhibits excellent ductility and processing performance in the annealed state, making it suitable for the complex structural requirements of hulls.
• Performance Advantages: The 5083-O aluminum plate has outstanding corrosion resistance, able to withstand the salt and moisture in marine environments, thus extending the service life of ships. Additionally, its good plasticity allows it to be used for manufacturing complex hull components such as hulls, decks, and other critical parts.

5083-O Aluminum for High-Pressure Vessels

• Application Areas: 5083-O aluminum plate is widely used in the manufacture of high-pressure vessels, which are typically used for storing and transporting high-pressure gases or liquids.
• Performance Advantages: Due to its excellent ductility and toughness, 5083-O aluminum plate maintains structural integrity under high-pressure conditions and is less likely to crack or deform, thereby improving the safety and reliability of the vessels.

5083-O Aluminum for Structural Components

• Application Areas: 5083-O aluminum plate is highly suitable for manufacturing structural components and parts with complex geometric shapes. Applications include non-standard parts in various engineering and construction structures, such as complex frames and support structures.
• Performance Advantages: Its excellent ductility allows 5083-O aluminum plate to be formed into complex shapes through deep drawing and other intricate processing techniques without developing cracks or other defects, meeting the requirements for high precision and complex designs.

Haomei 5083 O Aluminum Plate Sheet Stock List

Why Choose 5083-O?

If you need an aluminum alloy that can be formed into complex shapes (such as curved marine structures) and that offers high corrosion resistance in marine or other harsh environments, then 5083-O provides an excellent balance between formability and durability, even though it is not the strongest alloy in the 5083 series.

5083-O vs Other Tempers

5083 O Aluminum vs 6061 Aluminum Alloy

5083-O is clearly superior to 6061 in terms of corrosion resistance and weldability, making it particularly suitable for marine and highly corrosive environments.

How to Select and Process 5083 Aluminum

In actual material selection, you can refer to the following guidelines:

• Choose O temper: If your processing involves complex bending, deep drawing, or large cold deformation, priority should be given to 5083-O material to ensure smooth forming and avoid cracking.
• Choose HXX temper: If the component mainly requires higher static strength and the forming process is simple, then 5083-H116, H321, or other strain-hardened products can be selected.

During processing, it should be noted that this material has average machinability, and prolonged heating within the temperature range of 150–300°F (66–149°C) may increase susceptibility to stress corrosion. Improper heat treatment or long-term use within this temperature range should be avoided.

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Further reading

• 5083 Aluminum Coil

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