Marine 5086 Aluminum Properties

The marine grade aluminum sheets have the advantages of excellent corrosion resistance and weldability, which can meet the specific requirements of navigation. At present, aluminum-magnesium alloys, aluminum-magnesium-silicon alloys and aluminum-zinc-magnesium alloys are generally used as marine aluminum alloy materials.

Among them, the most common are silicon-aluminum alloy and aluminum-zinc-magnesium alloy materials. Aluminum alloys used in shipbuilding structures mainly include the following three types of alloys: 5083, 5086, and 5456. What are the 5086 aluminum properties?

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The main alloying elements of 5086 aluminum plate are magnesium and silicon. It has high corrosion resistance, good weldability and medium strength. In terms of mechanical properties, the tensile strength of 5086 aluminum sheet is ≥240, conditional yield strength is ≥95, elongation is ≥10.

In seawater corrosion experiments, the maximum depth of the corrosion pits of the 5086-H34 alloy sample is 0.86 mm, but there is no large strength loss; after 5 years, the strength loss of the fully immersed unprotected weld 5086 sample is negligible, and almost no corrosion pits are found.

In partially immersed samples, the strength loss of 3.2 mm thick unwelded 5086 is negligible regardless of the immersion conditions, which fully shows that 5086 maintains its inherent resistance to seawater stress corrosion.

In 2012, Austal US Company of the United States built the first batch of "Vigilance" all-aluminum catamaran high-speed transport ships, using 5083 aluminum alloy plates provided by Alcoa. Most of the 811.30 t aluminum alloys used in the superstructure of the US Navy's first ballistic missile destroyer "Dewey" are 5466 thick plates and 5086 thin plates.

The construction and working environment of the ship require that the material should have good corrosion resistance, weldability and plasticity, and certain tensile strength, yield strength, elongation, impact resistance and other properties. 5086 aluminum sheet can meet these requirements, so the application prospect of aluminum alloy products in ship transportation vehicles is very promising.

Haomei Aluminum is not only one of the 5086 aluminum plate suppliers, but also a supplier of 5083, 5456, 5059, 6061, etc. With DNV, ABS, LR and CSS certification, we have entered the shipbuilding market of many countries. Welcome to leave message below to inquire what you need.


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