5083 Aluminum Plate Sheet

Main Alloy Characteristics

• Alloy Composition: Mainly contains magnesium (Mg), with small amounts of manganese (Mn) and chromium (Cr).
• Corrosion Resistance: Excellent resistance to seawater and industrial chemicals.
• Strength: The highest strength among non-heat-treated aluminum alloys, but not recommended for use at temperatures above 65°C.

Physical and Mechanical Properties

• Strength: Higher strength than 5052 aluminum plate, but lower than 5086 aluminum plate.
• Thermal Conductivity: Excellent thermal conductivity.
• Formability: Good formability in the annealed state, with excellent ductility.

Welding and Heat Treatment

• Weldability: Good welding performance, maintaining high strength after welding.
• Heat Treatment: No heat treatment is required; high strength can be achieved through work hardening.

Overall Performance

• Marine Corrosion Resistance: Outstanding resistance to marine corrosion.
• Mechanical Performance: Good overall mechanical properties, including excellent formability and high weldability.

Architectural and Decorative Applications:

• Curtain walls and roofs: anodizing or powder coating can be used to provide good weather resistance and decorative effects.
• Interior decoration: brushed, polished, or color-coated finishes can be selected to meet different decorative needs.

Marine Environment Applications:

• Hulls and decks: marine anti-corrosion treatments should be applied, including multi-layer protective coating systems to ensure long-term resistance to seawater corrosion.
• Port facilities: hot-dip zinc or aluminum coatings combined with anti-fouling treatments can be used to enhance protection.

Food and Medical Equipment:

• Food processing equipment: should use food-grade coatings or electrolytic polishing to ensure hygiene and safety.
• Medical devices: antibacterial treatments or special coatings can be chosen to meet hygiene requirements.

Electronic and Electrical Equipment:

• Electronic device enclosures: conductive coatings or anti-static treatments can be used to meet electromagnetic shielding and anti-static requirements.
• Electrical equipment: insulation coatings or special treatments should be applied to improve electrical insulation performance.

Seawater Corrosion Resistance:

• 5083 aluminum plate exhibits excellent resistance to seawater corrosion, making it ideal for marine applications.
• Performs well in salt spray environments, suitable for coastal and offshore engineering.
• Compared to other aluminum alloys, 5083 has a significantly lower corrosion rate in seawater.

Resistance to Industrial Chemical Environments:

• Good resistance to most organic and inorganic acids.
• Can withstand general corrosive media in industrial chemical environments.
• Relatively weaker resistance to strong alkaline solutions; prolonged contact with strong bases should be avoided.

Atmospheric Corrosion Resistance:

• Good corrosion resistance in normal atmospheric conditions.
• Resists corrosion from urban and industrial atmospheres.
• Maintains good performance at low temperatures down to -200℃.

Intergranular Corrosion Sensitivity:

• 5083 aluminum plate may exhibit intergranular corrosion under certain heat treatment and processing conditions.
• Intergranular corrosion typically occurs along grain boundaries, potentially reducing material strength.
• Proper heat treatment and processing control can reduce intergranular corrosion susceptibility.

Stress Corrosion Cracking (SCC) Sensitivity:

• 5083 aluminum plate may experience stress corrosion cracking under combined corrosive environments and tensile stress.
• 5083-H116 and 5083-H321 tempers have relatively lower SCC susceptibility.
• SCC usually occurs under high temperature and high stress, with lower risk at low temperatures.

Measures to Improve Corrosion Resistance:

• Select the appropriate temper: 5083-H116 and 5083-H321 offer better corrosion resistance.
• Surface treatments: anodizing, coatings, etc., can enhance corrosion resistance.
• Control processing: avoid excessive cold working or improper heat treatment that increases intergranular corrosion susceptibility.
• Design appropriately: reduce stress concentrations to minimize SCC risk.

Marine Engineering

• Shipbuilding: hulls, decks, engine beds, and other critical parts utilize its seawater corrosion resistance (corrosion rate ≤0.05 mm/year), with a service life exceeding 25 years.
• Offshore platforms: structural components, piping systems, etc. With a density only 1/3 of steel, it reduces platform weight and improves wind and wave resistance.

Energy and Chemical Industry

• LNG tanks: no embrittlement risk at ultra-low temperatures of -162℃, weld strength reaches 85% of base metal, already used in LNG supply systems for Qatar World Cup venues.
• Chemical containers: superior acid and alkali resistance compared to 316 stainless steel, corrosion rate < 0.1 mm/year in ≤30% sulfuric acid, suitable for pharmaceutical reactors and wastewater treatment equipment.

Transportation

• Automotive lightweighting: body frames, air tanks, etc., reduce weight by up to 40%, improving fuel efficiency (every 100 kg weight reduction lowers fuel consumption by 0.6L/100km).
• Rail transit: subway car skins, high-speed train brake disk brackets, welding deformation reduced by 50% compared to 6061 aluminum alloy.

Shipbuilding

• Hull structures: 5083 aluminum plate is ideal for hull construction, especially 5083-H116 and 5083-H321 tempers with excellent seawater corrosion resistance.
• Decks and superstructures: 5083-H112 or 5083-H111 plates provide sufficient strength and corrosion resistance.
• Bottom plating: usually 5083-H116 aluminum plate, with superior seawater corrosion resistance.
• Bulkheads (wave-breaking plates): 5083-O aluminum plate is used for its softer, easier-to-process properties.
• Keels and funnels: 5083 aluminum plate provides good strength and corrosion resistance.

Offshore Platforms and Facilities

• Offshore oil platforms: 5083 aluminum plate is used for non-pressure structural components such as walkways, railings, and shelters.
• Port facilities: piers, breakwaters, wharfs, etc., 5083 aluminum plate resists seawater and salt spray corrosion.
• Marine monitoring equipment: 5083 aluminum plate is used for corrosion-resistant housings and structural components of marine observation devices.

Marine Auxiliary Equipment

• Ship ventilation systems: 5083 aluminum plate is used for ducts and equipment, offering excellent corrosion resistance.
• Ship interior decoration: 5083 aluminum plate can be used for ceilings, wall panels, etc.
• Ship furniture: 5083 aluminum plate can be used for tables, chairs, cabinets, etc., being lightweight and corrosion-resistant.

LNG Tanks:

• 5083-H112 aluminum plate is ideal for LNG tanks, maintaining good mechanical properties at -200℃ with excellent low-temperature toughness.
• Used for inner and outer tank structures, providing reliable sealing and structural support.
• Often combined with 9% nickel steel or stainless steel to form composite structures.

Industrial Gas Tanks:

• Compressed air tanks: made from 5083-H112 aluminum plate, with high strength and good weldability.
• Hydrogen tanks: 5083 aluminum plate exhibits good hydrogen embrittlement resistance, suitable for hydrogen storage.
• Other industrial gas tanks: including oxygen, nitrogen, carbon dioxide tanks, etc.

Liquid Storage Containers:

• Chemical storage tanks: 5083 aluminum plate has good corrosion resistance to most chemicals, suitable for chemical storage.
• Water tanks and wastewater treatment equipment: 5083 aluminum plate has excellent water and corrosion resistance, suitable for water treatment applications.
• Food and beverage storage tanks: 5083 aluminum plate can use food-grade coatings, suitable for food and beverage storage.

Tanker Applications:

• Tank bodies: usually 5083-H111 aluminum plate; tank covers on both sides require bending, made from 5083-O aluminum plate, which is softer; partitions (wave-breaking plates) also use 5083-O.
• Types of tankers: oil tankers, cement tankers, liquid tankers, powder tankers, etc.
• Market application: 5083 aluminum plate for tanker bodies is lightweight, corrosion-resistant, strong, and easy to process.

Curtains and Roofs:

• Architectural curtain walls: 5083 aluminum plates can be used to manufacture various types of curtain walls, with good weather resistance and decorative effect.
• Roof structures: 5083 aluminum plates are used to make lightweight roof structures, offering low weight and corrosion resistance.
• Sunshade systems: 5083 aluminum plates can be used to manufacture architectural sunshade systems, providing good weather resistance and shaping capability.

Bridges and Elevated Structures:

• Pedestrian bridges: 5083 aluminum plates can be used to manufacture lightweight pedestrian bridges, easy to install and transport.
• Elevated bridge sound barriers: 5083 aluminum plates are used for sound barriers, providing good corrosion resistance and aesthetics.
• Bridge decks: 5083-H116 aluminum plates can be used for bridge decks, offering high strength and corrosion resistance.

Architectural Decoration and Furniture:

• Interior decoration: 5083 aluminum plates can be used for interior walls, ceilings, partitions, providing modern appearance and durability.
• Architectural furniture: such as tables, chairs, display racks, lightweight and easy to process.
• Signs and signboards: 5083 aluminum plates can be used for various architectural signs, with good weather resistance.

Automobile Body Structure:

• Car body: 5083-O/H111/H32 aluminum plates can be used for automotive body structures, with good formability and corrosion resistance.
• Chassis: 5083 aluminum plates are used for chassis components such as longitudinal and cross beams, reducing weight and improving corrosion resistance.
• Doors and hoods: 5083 aluminum plates can be used to manufacture doors and hoods, enhancing fuel efficiency.

Rail Vehicles:

• Subways and light rail vehicles: 5083 aluminum plates can be used for vehicle body structures, reducing weight and improving corrosion resistance.
• High-speed trains: 5083 aluminum plates are used for non-load-bearing components such as interior panels and flooring.
• Railway freight cars: 5083 aluminum plates can be used for tank bodies and structural components, enhancing corrosion resistance and service life.

Other Transportation Applications:

• Ships and yachts: as mentioned earlier, 5083 aluminum plate is ideal for shipbuilding.
• Aircraft structures: 5083 aluminum plates can be used for non-load-bearing aircraft components such as interior panels and flooring.
• Vehicle fuel tanks: 5083-H116 aluminum plates can be used to manufacture fuel tanks, with good corrosion resistance and weldability.

New Energy Vehicle Applications:

• Battery trays: 5083 aluminum plates can be used for EV battery trays, offering lightweight, high strength, and good thermal conductivity.
• Charging pile housings: 5083 aluminum plates are used for charging pile enclosures, providing good weather resistance and safety.
• NEV structural components: such as battery brackets, motor housings, utilizing the lightweight and high-strength characteristics of 5083 aluminum plates.

Energy Sector:

• Solar PV supports: 5083 aluminum plates can be used for manufacturing solar PV supports, with good weather and corrosion resistance.
• Wind energy equipment: such as protective covers and fairings for wind turbines, using 5083 aluminum plates to reduce weight and improve corrosion resistance.
• Energy storage equipment: 5083 aluminum plates can be used for enclosures and structural components, offering good conductivity and corrosion resistance.

Tooling and Mold Manufacturing:

• Injection molds: 5083 aluminum plates can be used to manufacture small and medium-sized injection molds, offering good thermal conductivity and machinability.
• Stamping dies: 5083 aluminum plates used to manufacture stamping dies, lightweight and easy to process.
• Casting molds: 5083 aluminum plates can be used for non-critical components of casting molds, reducing cost.

Electronics and Electrical Equipment:

• Electronic device enclosures: 5083 aluminum plates can be used to manufacture electronic enclosures, providing good electromagnetic shielding.
• Electrical equipment structural components: such as distribution boxes and control cabinets, using 5083 aluminum plates to improve corrosion resistance and safety.
• Radiators and heat exchangers: 5083 aluminum plates have good thermal conductivity, suitable for radiators and heat exchangers.

Main Advantages of 5083 Aluminum Plate

• High Strength and Lightweight 5083 is one of the highest-strength alloys in the 5xxx series, with tensile strength up to 305-385 MPa, density around 2.71 g/cm³, much lower than steel, making it lightweight and easy to transport and install.
• Excellent Corrosion Resistance Outstanding resistance to seawater and marine environments, ideal for marine applications. Also exhibits good resistance to most organic and inorganic acids.
• Good Machinability Easy to bend, stamp, stretch, and machine. Excellent weldability, connectable by various welding methods.

Limitations of 5083 Aluminum Plate

• Cannot be strengthened by heat treatment: strength mainly achieved through cold working and alloying elements.
• Sensitive to stress corrosion cracking: may occur under certain conditions, such as high temperature and high stress.
• Work hardens quickly: prone to hardening during cold working, requiring intermediate annealing.
• High surface treatment requirements: surface treatment is usually necessary to achieve optimal corrosion resistance and decorative effect.

5083 Aluminum Plate Sheet Machinability

5083 aluminum sheet has moderate machinability. Proper tooling and processing techniques are required to achieve the desired results.

5083 Aluminum Plate Sheet Formability

5083 aluminum sheet can be easily formed using conventional methods such as bending, stamping, and deep drawing.

5083 Aluminum Plate Sheet Welding

5083 aluminum sheet can be welded using a variety of techniques such as arc welding, MIG (metal inert gas) welding, and TIG (tungsten inert gas) welding. However, proper cleaning and preparation of the material surface is essential to achieve a high-quality weld.

5083 vs 5052:

• Strength: 5083 has significantly higher strength than 5052, especially in H116 temper.
• Corrosion resistance: both have good corrosion resistance, but 5083 performs slightly better in marine environments.
• Machinability: 5052 has slightly better machinability than 5083, easier for deep drawing and bending.
• Application fields: 5052 is mostly used for general industrial and decorative purposes, while 5083 is more suitable for high-strength and marine applications.

5083 vs 6061:

• Strength: In T6 temper, 6061 has comparable strength to 5083, but 5083 in H116 temper has higher strength.
• Corrosion resistance: 5083 has significantly better corrosion resistance than 6061, especially in marine environments.
• Heat treatment capability: 6061 is a heat-treatable alloy, strength can be increased through heat treatment.
• Weldability: 5083 has better weldability than 6061, with higher weld strength.
• Application fields: 6061 is widely used in construction and machinery manufacturing, while 5083 is more suitable for marine and highly corrosive environments.

5083 vs 5456:

• Strength: similar strength, with 5456 having slightly higher elongation.
• Corrosion resistance: 5456 has comparable corrosion resistance to 5083, but slightly lower than 5083-H116.
• Machinability: 5456 has slightly better machinability than 5083.
• Application fields: 5456 is mainly used for marine and high-strength structural components, similar to 5083 applications.

5083 vs 5086:

• Chemical composition: 5083 has higher magnesium content than 5086.
• Strength: 5083 has slightly higher strength than 5086.
• Corrosion resistance: both have similar corrosion resistance, with 5083 slightly better in certain environments.
• Application fields: similar applications, choice depends on specific requirements.

Marine Applications:

• Hull underwater sections: 5083-H116 or 5083-H321 aluminum plates, excellent seawater corrosion resistance.
• Decks and superstructures: 5083-H112 or 5083-H111 temper, providing sufficient strength and corrosion resistance.
• Marine bulkheads (wave barriers): 5083-O temper, softer and easier to process.
• Marine specifications: thickness usually 3-50mm, width 2000mm or customized.

Pressure Vessel Applications:

• LNG tanks: 5083-H112 aluminum plate, good low-temperature toughness.
• Industrial gas tanks: 5083-H112 or 5083-H111 temper, providing sufficient strength and weldability.
• Tank body material: usually 5083-H111 aluminum plate, thickness 0.5-500mm.
• Tank covers and bulkheads: 5083-O temper, easy for bending.

Architectural Structure Applications:

• Curtain walls: 5083-H32 or 5083-H34 temper, providing good strength and weather resistance.
• Roof structures: 5083-H111 or 5083-H112 temper, good corrosion resistance.
• Decorative use: coated plates or patterned plates for enhanced aesthetics.
• Structural support: medium-thick plates, thickness determined by load requirements.

Automotive Industry Applications:

• Car body: 5083-O/H111/H32 aluminum plates, good formability and corrosion resistance.
• Vehicle floors and interiors: patterned or coated plates to improve comfort and aesthetics.
• Fuel tanks: 5083-H116 aluminum plates, good corrosion resistance and weldability.
• NEV battery trays: 5083 aluminum plates, leveraging lightweight and high-strength properties.