Aluminum Sheet 5086 5083 for Shipbuilding
Aluminum alloys are used in the marine industry to reduce the overall weight of the ship, increase the speed of the ship, and resist seawater corrosion on the ship. Aluminum-magnesium alloys are mainly used in ship hull, water pump conduits, pump casings, machine base brackets, etc. The grades include 5083, 5086, 5456, 5466, etc.
Al5083 has small activation ring in seawater and is easy to return to the passive state. At the same time, the breakdown potential and protection potential are higher than the self-corrosion potential in the stable state, which reflects its good corrosion resistance in seawater. Pitting corrosion is also the main corrosion forms of 5083 aluminum alloys. The rust-proof, corrosion-resistant performance and hardness of 5083 aluminum plate determine that this product is suitable for use in marine environments and corrosive environments.
Compared with the common 5082 alloy in the same series, 5083 aluminum plate has a high magnesium content (nearly double that of 5052), so it has higher strength and better corrosion resistance, and is more used in ship hulls. However, high magnesium content will affect the anodizing effect.
In the ship design industry, 5083 ultra-wide aluminum plates in the tempers of H116/H321/H112 are mostly used for the main deck of the ship, the diesel engine pedestal, the side of the ship, the outside of the ship, etc. 5083H111 and 5083H112 are essentially the same and have no difference in chemical composition.
Aluminum sheet 5086 has low density, high tensile strength, high elongation, and high corrosion resistance. It has medium strength and good weldability and is widely used in applications that require high corrosion resistance and good weldability. It is suitable for use in high-strength and medium-strength applications, such as welding parts on ships, automobiles, and aircraft, so it is a commonly used marine aluminum plates.
Similarly, 5086 aluminum sheet with surface embossing treatment is also the best material for spiral staircases, pedals, refrigerated truck wall panels and floors on large ships. 5086 aluminum tread plate has excellent corrosion resistance, and its surface is embossed with various patterns such as diamond patterns: 2 bar, 3 bar and 5 bar, which plays a more important role in anti-slip properties. In addition, 5086 pattern aluminum plate has excellent processing performance, good electroplating and weldability, and medium strength.
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