5083 H116/H321/H112 Marine aluminum plate

5083 aluminum plate is a high magnesium aluminum alloy commonly used in shipbuilding. It is widely used due to its excellent corrosion resistance and weldability.

According to different processing states, 5083 aluminum plate can be divided into many different states, among which H116, H321 and H112 are the three most common states.

◎5083 H116 Marine aluminum plate

◎5083 H321 Marine aluminum plate

◎5083 H112 Marine aluminum plate

• 5083 H116 Marine aluminum plate

5083 H116 aluminum plate is an aluminum plate that has undergone specific heat treatment and cold processing, and has high strength and anti-exfoliation corrosion performance. It is characterized by high tensile strength (≥305 MPa), high yield strength (≥215 MPa), and elongation ≥20%.

5083 H116 aluminum plate is mainly used for ship structures, such as hulls, decks, etc., and is particularly suitable for use in marine environments because it can effectively resist seawater corrosion.

• 5083 H321 Marine aluminum plate

5083 H321 aluminum plate is also heat treated, emphasizing the ability to resist exfoliation corrosion, and has more stable performance. Its strength is similar to that of 5083 H116 aluminum plate, but it may provide better toughness under certain conditions. It is suitable for applications that require high strength and corrosion resistance.

5083 H321 aluminum plate is used in ships, pressure vessels and other structural parts that require high strength and corrosion resistance.

• 5083 H112 Marine aluminum plate

5083 H112 aluminum plate refers to aluminum plate that has undergone a certain degree of cold processing but has not undergone comprehensive heat treatment, and its strength and hardness are relatively low. Its tensile strength and yield strength are lower than those of H116 and H321 states, but it still has good formability and weldability.

5083 H112 aluminum plate is suitable for some applications that do not require so much strength, such as ship interiors, non-structural parts, etc.

Advantages of 5083 Marine aluminum plate

• 1. Higher specific strength and specific modulus. The structural strength and size of the ship are closely related to the yield strength and elastic modulus of the material. Since the elastic modulus and density of aluminum alloy are roughly the same, the addition of alloying elements has little effect. Increasing the yield strength within a certain range has a strong effect on reducing the ship structure. 5083 aluminum plate has medium strength and excellent corrosion resistance and weldability.
• 2. Excellent welding performance. 5083 aluminum plate has good welding crack resistance and is not prone to cracks during welding.
• 3. Excellent corrosion resistance. Corrosion resistance is one of the main characteristics of marine alloys. 5083 aluminum plate is a typical rust-proof aluminum plate with good corrosion resistance, can adapt to harsh marine environments, and is durable.
• 4. Low density. Aluminum alloy has a small specific gravity, which can reduce the weight of the ship plate, save energy consumption, and increase the load.
• 5. Safety and environmental protection. Aluminum alloy does not burn, is safe in case of fire, has a high recovery rate, can be recycled, and has good environmental protection.

5083 aluminum alloy plays an important role in shipbuilding. It has its own unique advantages under different heat treatment states, provides different mechanical properties and corrosion resistance, and is suitable for different application scenarios. Shipbuilding companies can choose the right aluminum plate state to not only increase the service life of the product, but also ensure its safety and reliability in extreme environments.

Original Source:Marine Grade Aluminum Sheet Plate

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