5083 and 5086 aluminum alloy is a high-magnesium alloy with good strength, corrosion resistance and machinability among non-heat-treatable alloys. The surface is beautiful after anodization. Good arc welding performance. The main alloying element in 5083 and 5086 alloy is magnesium, which has good corrosion resistance and weldability, and medium strength. Excellent corrosion resistance makes 5083 and 5086 alloy widely used in maritime applications such as SHIPBUILDING , as well as automobiles, aircraft welding parts, subway light rail.
Both 5083 and 5086 aluminum grades are well-suited for marine environments due to their corrosion resistance, strength, and weldability.
5083 is the strongest non-heat treatable alloy, while 5086 is highly conductive and can be strengthened through cold working.
Some say 5086 is the superior alloy for marine use due to its increased strength.
Properties
5083
Ideal for hostile environments, it's the strongest non-heat treatable alloy and retains its strength after welding. It's often used for hulls and side sheets.
5086
Also known as "rust-proof aluminum plate," it's highly conductive and has superior corrosion resistance, especially in salt water. It can be strengthened through cold working and is compatible with multiple welding methods. It's the most popular choice for hulls and side sheets.
Aluminum's high strength-to-weight ratio makes it ideal for marine vessels. Ships built with aluminum alloy are 15–20% lighter than those made from steel and other synthetic materials. The lighter weight improves maneuverability and reduces fuel consumption, making aluminum more economical. Aluminum alloys also help reduce the weight of a ship's structure, which improves stability.