5083 h116 aluminum plate sheet

Marine Grade Aluminum ABS / DNV Certified Hot Rolled Plate

5083 H116 aluminum plate is a high-magnesium marine grade aluminum alloy designed for shipbuilding, offshore engineering, LNG storage tanks and high-corrosion seawater environments.

Haomei Aluminum supplies wide-width hot rolled 5083 H116 aluminum plate with stable flatness, excellent welding performance and superior seawater corrosion resistance.

• Thickness: 3mm - 200mm
• Width: up to 3800mm
• Marine certifications available

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5083-H116 aluminum is a non-heat-treatable strengthened alloy. Its corrosion resistance and exfoliation corrosion resistance in marine environments are significantly improved through strain hardening and stabilization treatment in the H116 temper.

5083 H116 aluminum can maintain excellent performance even after long-term exposure to saltwater and high-temperature, high-humidity environments. Compared with the H321 temper, H116 has slightly lower strength.

5083 H116 Aluminum Plate Sheet Size

5083 H116 aluminum plate and 5083-H116 aluminum sheet are available in a wide range of thicknesses, widths, and lengths, featuring excellent surface quality and flatness. They are well suited for various processing methods such as cutting, bending, and welding.

Haomei Aluminum commits that every batch of 5083-H116 aluminum plate it supplies is fully traceable. The production process adopts advanced online inspection technologies with strict quality control. The products have been certified by several internationally recognized classification societies, including the CCS and Det Norske Veritas (DNV), ensuring full compliance with major global maritime and high-end industrial standards.

5083 H116 Aluminum Properties

5083 H116 aluminum alloy is a high-strength aluminum-magnesium-manganese alloy. Through special strain lymphoma and stabilization treatment (H116 temper), it achieves an ideal balance between corrosion resistance and mechanical properties. It is particularly suitable for marine environments and extreme conditions and is widely evaluated for shipbuilding, offshore platforms, marine equipment, vehicle armor, and cryogenic storage tanks.

• Excellent corrosion resistance: The H116 temper significantly improves resistance to exfoliation corrosion and intergranular corrosion. It performs exceptionally well in seawater or salt spray environments, and its natural oxide film shows a corrosion rate of only about 0.02 mm/year in 3.5% NaCl solution, two orders of magnitude lower than ordinary carbon steel.
• High strength with good ductility: Typical tensile strength is about 290 MPa (42 ksi), and yield strength is about 210 MPa (30 ksi), offering good machinability and weldability, while maintaining excellent structural defects after welding.
• Outstanding welding performance: Conventional welding methods can be used, with 5356 or 5183 filler wire recommended; strength loss after welding is minimal.
• Low-temperature capability: Maintains mechanical strength and capability in low-temperature environments, suitable for docks, hulls, and extreme-environment applications.
• Machinability and formability: Good cold-forming performance allows complex curved-surface processing; compared with 7075 aluminum alloy, load force is reduced by about 30%, and spindle life is doubled.
• Heat treatment and surface treatment priority: Annealing temperature is 415 ℃ to improve processing performance; anodizing (film thickness up to 25 μm, hardness exceeding 300 HV), coating, electroplating, and other surface treatments are possible, providing both decorative and protective properties.
• Classification society certification: Approved by CCS, DNV, BV, ABS, and other classification societies, ensuring reliability and safety in shipbuilding and marine engineering.

Combining high strength, excellent corrosion resistance, outstanding weldability, and low-temperature toughness, 5083 H116 aluminum alloy is an ideal choice for marine engineering and extreme environments. Whether used for hull structures, offshore platforms, or special and vehicle tank applications, it provides long-term stable performance and excellent service life.

5083 H116 Aluminum Plate Sheet Chemical, Mechanical and Physical Properties

5083 H116 Aluminum Plate Sheet Factory & Product Gallery

5083 H116 Aluminum Plate Applications

5083 H116 vs 5083 H321 Aluminum Plate

5083 H116 Aluminum Plate Manufacturing Capability

Haomei Aluminum operates advanced hot rolling production lines for marine aluminum plate manufacturing.

We provide stable mechanical performance, precise thickness tolerance and excellent surface flatness for global shipbuilding and offshore engineering projects.

• Ultra-wide marine aluminum plate production
• Maximum width up to 3800mm
• Continuous hot rolling line
• Online flatness control system
• Ultrasonic inspection available
• Marine certification support

Marine Certifications for 5083 H116 Aluminum Plate

5083 H116 Aluminum Plate Surface Quality Control

• Chemical composition inspection
• Mechanical property testing
• Ultrasonic flaw detection
• Flatness inspection
• Surface cleanliness control
• No oil stains or cracks
• Stable seawater corrosion resistance

Export Packaging of 5083 H116 Aluminum Plate

5083 H116 Bend Radius

Bend radius refers to the inner radius of the bent section of a material during the bending process. For 5083 H116 aluminum alloy, its bend radius is mainly affected by the following factors:

Specific bend radius requirements for 5083 H116:

For 180° bends, the minimum bend radius of 5083 H116 aluminum alloy is about 2 times that of the 90° bend radius. It should be noted that these values are for reference only, and actual applications may require adjustment based on specific processes and requirements.

5083 H116 vs H111

5083 aluminum alloy is a typical aluminum-magnesium corrosion-resistant alloy widely used in shipbuilding, marine engineering, and offshore structures. Among its common marine-grade supply tempers, H116 and H111 differ significantly in strength level, corrosion-resistance certification, and processing characteristics, directly affecting material selection.

Mechanical Properties and Structural Strength

Compared with H111, 5083 H116 plate undergoes more thorough processing and temperature control, resulting in higher strength levels:

• Yield strength: typically about 50% – 70% higher, providing stronger load-bearing capacity
• Tensile strength: overall improvement, more suitable for load-bearing structures
• Applications: suitable for hull plating, value decks, keels, and other load-bearing parts

Meanwhile, 5083 H111 plates have a lower processing temper and milder strength level, providing stronger forming bearing ultimate load capability.

For marine structures requiring a high strength-to-weight ratio, H116 offers added advantages.

Seawater Corrosion Resistance and Certification Differences

Although both tempers belong to marine-grade aluminum 5083, their corrosion-resistance verification levels differ:

5083 H116

• Passes dedicated exfoliation and intergranular corrosion tests
• Controlled for long-term stability of high-magnesium alloys in saltwater environments
• Common in applications requiring classification certification (CCS/DNV/LR, etc.)

5083 H111

• Possesses good natural corrosion resistance
• But cannot meet the same level of exfoliation test requirements
• More suitable for non-critical immersed structures

This makes 5083 H116 marine aluminum plate more reliable in splash zones, near waterlines, or in long-term immersion environments.

How to choose between 5083 h116 and h111?

Prefer 5083 H116 for:

• Hull outer plating
• Offshore load-bearing structures
• Long-term seawater immersion components
• Projects requiring classification certification

Prefer 5083 H111 for:

• Internal structural parts
• Fuel tanks or storage tanks
• Complex curved components
• Scenarios requiring moderate strength but high workability

5083 H116 vs H112

The difference between 5083 aluminum plate H116 and H112 lies not in alloy composition but in processing and stabilization methods, which influence strength level, corrosion resistance, and application environment. Understanding these differences helps make better decisions when selecting marine or structural aluminum plate.

Temper Formation and Material Characteristics

5083 H112 aluminum plate

The H112 temper usually forms through hot working or slight cold working and does not have strictly controlled strengthening levels. The material maintains good ductility and processing tolerance, offering consistency for bending, welding, or subsequent forming. Because its mechanical properties allow some variation, it is often used for general structural parts or as raw material for further processing.

5083 H116 aluminum plate

In contrast, H116 is a stabilized temper designed for marine environments. By controlling the degree of lymphoma processing and property consistency, it provides more reliable resistance to exfoliation and intergranular corrosion. This temper typically meets defined performance standards and is widely evaluated for projects requiring long-term water exposure or classification certification.

These can be understood as having different emphases:

• H112 leans toward processing flexibility
• H116 leans toward stability

Strength and Plasticity Differences

• H116 generally provides higher yield and tensile levels, suitable for load or structural stability requirements
• H112 retains better plasticity and deformation capability, offering more operational flexibility in complex fabrication

Therefore, a balance must be made between enhancing structural load capacity and improving forming convenience depending on project needs.

Corrosion Performance and Environmental Vehicles

The 5083 series itself is a high-magnesium corrosion-resistant aluminum alloy with good corrosion resistance in most environments, but temper differences still affect long-term performance:

• H116 is more stable under long-term seawater immersion or high salt spray, with stronger resistance to lamellar corrosion, commonly used for exterior hull plates, underwater components, or offshore equipment
• H112 performs reliably in general industrial or ventilated environments, suitable for land-based structures or areas without extreme corrosion demands

For structures directly exposed to marine fishing environments, H116 is generally considered more stable and suitable.

Processing and Manufacturing Considerations

During manufacturing, the differences are also evident:

• H112 is easier to bend, form, and deeply process, prioritizing manufacturing process flexibility
• H116, due to higher strength, has relatively limited deformation space and is more suitable for near-final structural applications

This is one reason some manufacturers use H112 extensively in early processing stages.

Application Scope Reference

Common applications of H112

• General structural components
• Parts of transport equipment
• Plates requiring subsequent processing
• Non-critical ship structural areas

Common applications of H116

• Hull structural plates
• Marine engineering equipment
• Load-bearing parts in high-corrosion environments
• Projects requiring marine certification compliance

5083 h116 and h112 selection recommendations

When projects involve long-term marine environments, certification requirements, or corrosion risks, choosing 5083 H116 increases reliability. When the focus is on processing flexibility, cost control, or general structural use, 5083 H112 often offers economic and manufacturing advantages.

5083 H116 vs 6061 T6

5083 H116 aluminum alloy outperforms 6061 T6 in terms of corrosion resistance (especially in marine environments) and weldability, while 6061 T6 excels in strength and machinability after heat treatment. Both materials have their own advantages, and selection should be based on specific application requirements.

5083 H116 Aluminum Plate Sheet Inventory

FAQ about 5083 H116 Aluminum Plate

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