5083 marine aluminum plate is a high-magnesium aluminum alloy widely used in shipbuilding, offshore structures and marine engineering. With excellent seawater corrosion resistance, high strength, good weldability and superior fatigue performance, 5083 aluminum plate is one of the most commonly used marine grade aluminum materials.
Haomei Aluminum supplies 5083 marine aluminum plate in O, H111, H112, H116 and H321 tempers, with customized thickness, width and length available. Products can be supplied according to ASTM B928, EN 485, EN 573, GB/T standards, and marine classification certificates such as ABS, DNV, LR, BV and CCS can be provided according to project requirements.
Get Marine Aluminum Plate Price- Alloy: 5083
- Temper: H116/H321/H111
- Certificates: ABS / DNV / CCS / LR
- Standard: ASTM B928 / ASTM B209
- Width: Max 2600mm
- Thickness: 3-200mm
Haomei Aluminum is a professional manufacturer of 5083 marine aluminum plates for shipbuilding, yachts, offshore platforms and marine engineering applications. We provide stable alloy composition, excellent corrosion resistance and reliable mechanical properties for global marine projects.
5083 Marine Aluminum Plate Specifications
| Item | Available Specification |
| Alloy | 5083 |
| Temper | O, H111, H112, H116, H321 |
| Thickness | 3 mm - 200 mm, customized |
| Width | 1000 mm - 2600 mm, customized |
| Length | customized |
| Surface | Mill finish, polished, brushed, coated |
| Standard | ASTM B928, EN 485, EN 573, GB/T |
| Certification | ABS, DNV, LR, BV, CCS available |
| Application | Shipbuilding, marine structures, offshore engineering |
| MOQ | According to specification |
| Delivery | By sea container or bulk shipment |
5083 Marine Aluminum Plate Production & Export
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5083 Marine Aluminum Plate Production Line -
Marine aluminum plate warehouse and export preparation -
5083 Marine Aluminum Plate Loading
5083 Marine Grade Aluminum Plate for Shipbuilding
5083 aluminum plate is especially suitable for marine environments because of its strong resistance to saltwater corrosion. Compared with ordinary aluminum alloys, 5083 has higher magnesium content, providing better strength, excellent weldability and long-term durability in harsh offshore conditions.
- Ship hulls
- Boat decks
- Marine fuel tanks
- Superstructures
- Offshore platforms
- Fishing boats
- Patrol boats
- LNG ship components
- Pressure vessels
- Marine engineering structures
For shipbuilding and offshore engineering applications, 5083 H116 and 5083 H321 aluminum plates are widely used because they offer stable mechanical properties and enhanced resistance to exfoliation corrosion.
Why Choose 5083 Aluminum Plate for Marine Service?
Excellent Seawater Corrosion Resistance
5083 aluminum plate performs well in marine and coastal environments. It resists saltwater corrosion and is suitable for long-term service in ships and offshore structures.
High Strength-to-Weight Ratio
Compared with steel, 5083 aluminum plate is lighter while still providing excellent strength. This helps reduce vessel weight, improve fuel efficiency and increase payload capacity.
Good Weldability
5083 aluminum alloy has excellent welding performance and is suitable for MIG and TIG welding. Welded joints maintain good strength and corrosion resistance.
Low-Temperature Performance
5083 remains tough at cryogenic temperatures and is frequently specified for LNG storage and transport components.
Suitable for Harsh Marine Conditions
5083 H116 and H321 tempers are specially used in marine environments where resistance to exfoliation corrosion and stress corrosion is required.
Long Service Life
Due to its corrosion resistance and stable performance, 5083 marine aluminum plate helps reduce maintenance costs and extend service life.
Available Tempers of 5083 Marine Aluminum Plate
5083 H116 Aluminum Plate
5083 H116 is designed for marine applications and has excellent resistance to exfoliation corrosion. It is widely used in ship hulls and marine structures.
5083 H321 Aluminum Plate
5083 H321 offers stable mechanical properties and good corrosion resistance, making it suitable for marine engineering and shipbuilding projects.
5083 H111 Aluminum Plate
5083 H111 provides moderate strength and good corrosion resistance. It is often used in general marine and structural applications.
5083 O Aluminum Plate
5083 O temper has good formability and is suitable for applications requiring bending, forming or deep processing.
5083 H112 Aluminum Plate
5083 H112 is commonly used for thick plates and applications requiring good strength and stability.
5083 Marine Grade Aluminum Plate Chemical Composition
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Zr | Unit |
| 5083 | ≦0.4 | ≦0.4 | ≦0.1 | 0.40-1.00 | 4.00-4.90 | 0.05-0.25 | ≦0.25 | ≦0.15 | - | Wt% |
5083 Marine Grade Aluminum Plate Mechanical Properties
| Alloy | Temper | Rm(Mpa) Tensile strength | Rp0.2(MPa) Yield strength | Elongation A(%) | Exfoliation corrosion | Intergranular corrosion Mg/cm2 | Certification |
| 5083 | O/H111/H112 | ≥275 | ≥125 | ≥16 | - | - | DNV, GL, ABS, CCS, BV, LR |
| H116 | ≥305 | ≥215 | ≥10 | ≦PB | ≦15 | ||
| H321 | 305-385 | 215-295 | ≥12 |
Quality Control for 5083 Marine Aluminum Plate
Chemical Composition Inspection
The alloy composition is verified against the applicable specification before the material is released.
Thickness Inspection
Plate thickness is checked at defined locations to confirm compliance with the specified tolerance.
Width and Length Inspection
Finished dimensions are measured before packing to verify order requirements.
Surface Inspection
Plates are inspected for visible defects such as significant scratches, dents, edge damage or surface irregularities that could affect downstream fabrication.
Mechanical Property Testing
Depending on the project, tensile strength, yield strength and elongation can be verified according to the applicable standard.
Ultrasonic Testing
Ultrasonic testing can be arranged for projects where internal quality requirements call for additional inspection.
5083 Marine Aluminum Plate Certifications & Standards
Our marine grade aluminum sheets are certified by globally recognized classification societies, ensuring compliance with shipbuilding and offshore engineering standards.
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ABS Certificate -
BV Certificate -
CCS Certificate -
DNV Certificate -
RINA Certificate -
LR Certificate
5083 Marine Aluminum Plate Packaging and Delivery
5083 marine aluminum plates are packed with waterproof paper, protective film, wooden pallets or wooden cases to prevent damage during transportation. Export packaging is suitable for long-distance sea shipment.
- Standard export packaging
- Customized plate sizes
- Fast production scheduling
- Container loading support
- FOB, CFR, CIF delivery terms
- Technical support before order confirmation
5083 Marine Grade Aluminum Plate Applications
- Hull Structures: 5083 Marine Grade Aluminum Plate is commonly used in critical structural parts of ships such as hulls, decks, bulkheads, and keels. With its high strength and outstanding corrosion resistance, it ensures long-term stability and reliability in marine environments.
- Ship Equipment: 5083 aluminum plate is suitable for manufacturing equipment such as fuel tanks, piping systems, and pressure vessels, enhancing durability and safety.
- Marine Engineering: Widely used in offshore platform support structures, submersible hulls, and other marine engineering facilities, meeting the strength and corrosion resistance requirements under harsh sea conditions.
- Special Vessels: 5083 aluminum plate is an ideal material for high-speed boats, yachts, and LNG ships, balancing lightweight and structural strength, making it the preferred aluminum plate for marine applications.
5083 H116 vs H321: Which Marine Temper Should You Choose?
H116 and H321 are among the most important tempers when specifying 5083 for marine applications.
- 5083-H116 H116 is commonly specified for marine plate where controlled corrosion performance is an important part of the material requirement.
- 5083-H321 H321 is also widely used for marine plate and provides a stabilized strain-hardened condition for marine structural applications.
| Feature | 5083-H116 | 5083-H321 |
| Typical use | Marine plate and welded structures | Marine plate and welded structures |
| Marine service | Yes | Yes |
| Corrosion control | Designed for marine service requirements | Designed for marine service requirements |
| Strength condition | Strain-hardened marine temper | Strain-hardened and stabilized marine temper |
| Typical applications | Hulls, decks, bulkheads and marine structures | Hulls, decks, structural plate and offshore fabrication |
| Welding | Suitable for welded construction | Suitable for welded construction |
| Selection priority | Marine corrosion performance and project requirements | Marine performance plus mechanical and fabrication requirements |
For related material options, see our 5083 Aluminum Sheet and compare 5083 with other Marine Grade Aluminum Plate grades.
Why Choose Haomei for 5083 Marine Aluminum Plate?
Choosing a 5083 marine aluminum plate supplier involves more than comparing prices. For shipbuilding and marine projects, the aluminum plate needs to match the specified alloy, temper, dimensions and inspection requirements from the start.
Haomei can arrange 5083 aluminum plate orders based on the project specification, including:
- Alloy
- Temper
- Thickness
- Width
- Length
- Inspection
- Documentation
- Packing
This order-based approach helps confirm the material requirements before production, reducing the risk of specification changes, dimensional issues or missing documents at the delivery stage.
Depending on the application, buyers can also compare other marine-grade aluminum alloys. Explore our marine aluminum plate range, including 5083, 5383, 5454, 5456 and 5754.
5083 vs 5052 vs 5086 Marine Aluminum Plate
| Alloy | Strength | Corrosion Resistance | Common Applications |
| 5052 | Medium | Good | Marine parts, tanks, sheet metal |
| 5083 | High | Excellent | Ship hulls, decks, offshore structures |
| 5086 | Medium-High | Excellent | Boats, marine structures, pressure vessels |
For heavy-duty marine structures and shipbuilding projects, 5083 marine aluminum plate is often preferred because of its higher strength and excellent seawater corrosion resistance.
How to Order 5083 Marine Aluminum Plate
For a quotation, send the following information:
- Alloy
- Temper
- Thickness
- Width
- Length
- Quantity
- Standard
- Application
- Certification
- Inspection
Need 5083 H116 or H321 Marine Aluminum Plate?
Send your alloy, temper, thickness, dimensions, quantity and certification requirements for a project-based quotation.
Request a QuoteFAQ – 5083 Marine Aluminum Plate
What is 5083 marine aluminum plate?
5083 marine aluminum plate is a high-magnesium aluminum alloy with excellent corrosion resistance, high strength, and good weldability. It is widely used in shipbuilding, marine structures, and offshore engineering.
Is 5083 aluminum suitable for seawater?
Yes. 5083 aluminum has excellent resistance to seawater corrosion and is one of the most commonly used aluminum alloys for marine environments.
What is the difference between 5083 H116 and 5083 H321?
Both H116 and H321 tempers are designed for marine applications. H116 provides excellent resistance to exfoliation corrosion, while H321 offers stable mechanical properties achieved through controlled strain hardening and stabilization. The selection depends on classification rules and project requirements.
Can you provide ABS or DNV certified 5083 aluminum plate?
Yes. 5083 marine aluminum plates can be supplied with ABS, DNV, LR, BV, or CCS certification according to customer requirements.
What thickness of 5083 marine aluminum plate can you supply?
We supply 5083 marine aluminum plates in a wide thickness range, typically from 3 mm to 200 mm. Custom sizes and dimensions are also available.
Is 5083 aluminum plate weldable?
Yes. 5083 aluminum plate has excellent weldability and is suitable for MIG and TIG welding processes, making it ideal for shipbuilding and structural fabrication.
What is 5083 aluminum plate used for?
5083 aluminum plate is widely used in ship hulls, decks, marine fuel tanks, offshore platforms, pressure vessels, LNG equipment, fishing boats, yachts, and patrol boats.
Why is 5083 aluminum used for shipbuilding?
It is used because of its high strength-to-weight ratio, excellent seawater corrosion resistance, and good weldability. These properties help reduce vessel weight, improve fuel efficiency, and extend service life in harsh marine environments.
What certifications are required for marine aluminum plate?
Common certifications include ABS, DNV, LR, BV, and CCS. These certifications ensure the material meets marine classification society standards for safety, strength, and corrosion resistance.
What thickness is used for aluminum boat hulls?
Boat hull thickness depends on vessel type and design requirements. Typically, small boats use 3–6 mm plates, while larger ships and offshore structures may require 6–50 mm or more in high-stress areas.
5083 vs 5086 marine aluminum plate
Both alloys are widely used in marine environments. 5083 generally offers higher strength than 5086, while 5086 may provide slightly better formability in some conditions. The final selection depends on design requirements, structural load, and classification standards.