5083 h111 aluminum plate sheet

5083-H111 aluminum plate is a typical 5000 series Al-Mg corrosion-resistant aluminum alloy sheet, with magnesium (approximately 4.0–4.9%) as the main alloying element, supplemented by trace elements such as manganese and chromium to form a high-magnesium alloy. This material is a non-heat-treatable alloy, and its properties are mainly obtained through work hardening. It has extensive application value in marine grade aluminum plates and welded structural fields.

H111 is a common supply temper of the 5083 alloy, indicating that the sheet has only undergone light strain hardening after final annealing, with a lower degree of work hardening than the H11 temper requirement. This temper achieves a good balance between strength and formability: compared with the O temper, it has higher mechanical strength while still maintaining excellent ductility and processing adaptability, suitable for bending, forming, and subsequent structural manufacturing. Therefore, 5083 H111 aluminum sheet is often regarded as an ideal material choice for general-purpose medium-strength welded structures.

As one of the marine-grade aluminum alloys, 5083 H111 exhibits outstanding corrosion resistance, especially stable performance in seawater or high-humidity salt spray environments, effectively reducing long-term maintenance costs. At the same time, it has excellent weldability, with reliable welded joint quality, and is widely used in shipbuilding, pressure vessels, transportation equipment, and engineering structures.

In terms of temper performance comparison:

• Compared with H116: strength and corrosion resistance are slightly lower, but plasticity and formability are better
• Compared with O temper: strength is significantly improved
• Suitable for applications emphasizing processing and bending performance rather than ultimate strength

5083-H111 aluminum alloy plate combines corrosion resistance, weldability, and moderate strength, making it a reliable material option that balances processing flexibility and durability in marine aluminum sheets, structural plates, and general manufacturing fields.

Why Choose 5083 H111 Aluminum Plate

Haomei 5083 H111 Aluminum Alloy Product Specifications

Haomei Advanced Manufacturing Capability for 5083 Aluminum Plate

• 2800mm Ultra-Wide Hot Rolling Line

  Large-width 5083 aluminum plate production with stable thickness tolerance and flatness control.

• Continuous Annealing System

  Specialized heat treatment process for marine grade aluminum plate including H111, H116, and H321 tempers.

• Ultrasonic Testing & Surface Inspection

  Internal defect detection and surface quality inspection ensure reliable marine aluminum plate performance.

• Large Inventory & Fast Delivery

  Regular stock for common marine aluminum plate sizes helps shorten global delivery lead times.

• Custom CNC Cutting Processing

  Precision cutting, slitting, and customized processing services available based on project requirements.

• Export Experience in 100+ Countries

  Rich export packaging and international shipping experience for marine and industrial aluminum projects worldwide.

Haomei 5083 H111 Aluminum Sheet & Plate Forms

Haomei 5083 H111 aluminum products are available in both sheet and plate forms for marine, transportation, pressure vessel, and industrial structural applications. With excellent corrosion resistance, high weldability, and stable mechanical performance, 5083 H111 aluminum is widely used in shipbuilding, offshore engineering, tank truck bodies, LNG storage systems, and heavy-duty fabrication projects.

Aluminium 5083 H111 Features

5083 H111 aluminum is a typical Al-Mg corrosion-resistant alloy and a non-heat-treatable material. The H111 temper represents light work hardening while maintaining high ductility, thus achieving a good balance between strength, formability, and corrosion resistance. It is widely used in marine aluminum plates, shipbuilding aluminum, and cryogenic tank materials. Its main performance features are as follows:

Excellent Corrosion Resistance

Thanks to its high magnesium content, 5083 H111 exhibits strong corrosion resistance in seawater, marine atmospheres, and industrial chemical environments. It is especially suitable for structural components exposed long-term to humid and high-salt environments, making it a typical marine-grade aluminum.

Moderate Strength with High Ductility

Compared with stronger tempers such as H116, H111 has slightly lower strength but is still significantly higher than pure aluminum and 1xxx/3xxx series alloys. At the same time, it retains plasticity close to the annealed state, suitable for stamping, bending, cold forming, and other complex forming requirements. It usually meets the balance of strength and workability required for most non-heavy-duty structural applications.

Excellent Forming and Machining Performance

The H111 temper has good cold working adaptability, suitable for shearing, stamping, rolling, and structural processing, improving manufacturing efficiency and reducing the risk of processing cracks.

Stable Low-Temperature Performance

5083 does not become brittle at low temperatures; instead, it maintains or even increases strength and toughness. It remains reliable under extremely low-temperature conditions (such as liquefied gas storage and transportation equipment), making it commonly used in cryogenic aluminum applications.

Non-Heat-Treatable Strengthening

As a non-heat-treatable alloy, its strength improvement relies mainly on work hardening rather than quenching and aging, meaning the material structure is stable and performance fluctuations during service are minimal, suitable for long-term service environments.

Typical Applications of 5083 H111 Aluminum

Shipbuilding

Used for hull structures, decks, bulkheads, ferry boats and offshore modules.

Tank Trucks

Widely used for LNG tankers, fuel tank trucks and cryogenic transportation tanks.

Pressure Vessels

Suitable for pressure vessels requiring corrosion resistance and lightweight structures.

5083 H111 Aluminum Plate Corrosion Resistance

5083 H111 aluminum plate is a typical Al-Mg high-magnesium corrosion-resistant aluminum alloy, known for its excellent corrosion resistance. Its high magnesium content provides outstanding resistance in seawater, humid marine atmospheres, and industrially polluted environments, effectively resisting pitting and long-term corrosion. Therefore, it is widely used in marine aluminum plates, shipbuilding materials, and offshore structures.

In practical engineering applications, the corrosion resistance of 5083 alloy is a key reason for its adoption in shipbuilding and marine engineering. Whether used for hull structures, deck components, or offshore equipment, it maintains stable performance and a long service life in high-salt spray environments.

It should be noted that different tempers emphasize corrosion resistance differently. In addition to the H111 temper, 5083-H116 and 5083-H321 aluminum plates undergo stabilization treatment, showing particularly excellent performance in exfoliation corrosion resistance and stress corrosion cracking resistance, suitable for more severe marine service conditions.

With its stable and reliable corrosion resistance, 5083 H111 aluminum plate has become a common and mature marine-grade aluminum solution in shipbuilding and marine engineering.

5083 H111 Aluminum Sheet Plate Chemical Composition

Mechanical Properties of 5083 H111 Aluminum Plate Sheet

5083 H111 Aluminum Plate Sheet Reference Data for some Physical Properties

5083 H111 Equivalent

Standard equivalent grades of 5083 aluminum alloy

Haomei 5083 H111 Aluminum Plate Sheet Quality Inspection & Certifications

Haomei implements strict quality inspection procedures throughout the entire production process of 5083 H111 aluminum plate and sheet. From raw material control to final shipment inspection, every batch is tested to ensure stable mechanical properties, precise chemical composition, and reliable marine-grade performance for global industrial applications.

As a professional 5083 H111 aluminum plate manufacturer and supplier, Haomei focuses on marine-grade aluminum quality control, ensuring excellent corrosion resistance, weldability, and long-term durability for shipbuilding, LNG tanks, offshore structures, tank trucks, and industrial fabrication.

Export Packaging for 5083 H111 Aluminum Plate

• Seaworthy wooden pallet packaging
• Waterproof paper + PVC film protection
• Steel strip reinforced bundling
• Edge protection for long-distance transportation
• Container loading inspection before shipment

5083 H111 Aluminum Plate Sheet Stock List

Aluminium 5083 H111 vs Other Tempers

• O: Fully annealed condition, the softest, suitable for further processing.
• H22: Semi-hard condition after solution treatment.
• H32: Hard condition after solution treatment and stabilizing annealing.
• H116: Provides higher corrosion resistance, suitable for harsh environments.
• H321: More stable than H32, suitable for applications requiring higher strength and stability.

• 5083-O (Annealed): The softest temper, lowest strength, but best plasticity and formability. Suitable for operations requiring severe deformation.
• 5083-H112 (Hot Worked): Temper achieved by forming at high temperature followed by natural cooling, with certain strength, typically used for thick plates or profiles.
• 5083-H116/H321: Tempers specifically designed for marine environments, with more stable resistance to exfoliation corrosion and higher strength than H111. Commonly used for high-performance marine aluminum plates.

5083 H111 vs H116

Production Process Differences

It can be seen that the strength of 5083 H116 is significantly higher than H111, but its elongation is lower, making the material relatively harder and more brittle.

Corrosion Resistance Comparison

In terms of corrosion resistance, H116 is clearly superior to H111:

• H116 has excellent resistance to exfoliation corrosion, with exfoliation corrosion rating ≤ PB
• Intergranular corrosion value of H116 ≤ 15 Mg/cm²
• H111 temper does not have special treatments targeting corrosion resistance

This makes H116 particularly suitable for marine and other harsh corrosive environments.

Application Differences

Aluminium 5083 H111 vs H112

Temper and Processing Differences

• H111: Undergoes moderate work hardening, providing medium strength and good ductility. More suitable for complex structural components that require bending or forming, such as curved hull panels or bent channels.
• H112: Standard commercial rolled temper, with slightly higher strength than H111. Suitable for flat plates or components with uniform thickness, ensuring mechanical strength while maintaining good corrosion resistance.

Corrosion Resistance

Both retain the excellent corrosion resistance of 5083 aluminum in seawater, humid air, and similar environments. The long-term corrosion performance of H111 and H112 in marine environments is almost identical.

Machining and Welding Performance

• H111: Soft and easy to work with, suitable for deep drawing, bending, and other complex processes; the strength of the heat-affected zone changes minimally during welding.
• H112: More suitable for applications requiring flatness and structural strength; welding performance is also good, typically using 5356 aluminum welding wire.

Application Scenarios

• 5083 H111 is commonly used for curved hull panels, storage tanks, pressure vessels, and lightweight structural components.
• 5083 H112 is commonly used for flat plate structures, ship decks, industrial equipment, and mechanical frames.

What is the difference between 5083 H116 and 5083 H321?

Production Process Differences

In some cases, H321 can be used interchangeably with H111 and H116, and it is considered a marine-grade material.

The strength range of H321 is relatively wide; the lower limit is comparable to H116, but the upper limit is higher, and elongation is also slightly greater, indicating better overall performance.

Corrosion Resistance Comparison

In terms of corrosion resistance:

• H116 has excellent resistance to exfoliation corrosion, with an exfoliation corrosion rating ≤ PB
• Intergranular corrosion value of H116 ≤ 15 Mg/cm²
• H321 also has good corrosion resistance, but the standards do not explicitly specify its exfoliation corrosion performance

Both tempers are suitable for marine environment applications requiring high corrosion resistance.

Application Differences

Aluminium 5083 H111 Precautions

• Temperature Limit: It is not recommended to use 5083 H111 alloy for long periods in environments above 65℃, as high temperatures may reduce material strength and affect corrosion resistance.
• Prevent Electrochemical Corrosion: Avoid direct contact with dissimilar metals during use to prevent galvanic corrosion and ensure long-term structural stability.
• Post-Welding Treatment: Light post-welding treatment is recommended to enhance the material’s structural stability and overall durability.

Tip: By properly controlling working temperature, avoiding contact with dissimilar metals, and applying post-welding treatment, the medium strength, high corrosion resistance, and excellent processing characteristics of 5083 H111 aluminum alloy can be fully utilized, ensuring long-term reliable use in ships, transportation, or structural components.

With its perfect balance of corrosion resistance, weldability, and medium strength, 5083-H111 aluminum plate has become a preferred material in many industrial fields, particularly suitable for welded structures that require both structural strength and processing convenience.

Aluminium 5083 H111 Selection and Purchasing Recommendations

As a professional supplier of 5083 H111 aluminum plates, Haomei Aluminum provides the following expert advice for customers during selection and use:

Haomei Aluminum is committed to providing customers with high-quality, reliable aluminum solutions, ensuring full support from material selection to technical guidance, allowing your projects to be executed smoothly.

FAQ About 5083 H111 Aluminum Plate

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