What is Marine Grade Aluminum 5083 H116?

Jun 30, 2025

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In marine environments, metals are continuously exposed to high salinity, moisture, wave impact, and temperature fluctuations, all of which accelerate corrosion. Corroded metal can lose strength, develop cracks or holes, and eventually lead to equipment failure or safety risks. Therefore, marine metals (such as aluminum plates, bolts, and structures) must have excellent corrosion resistance to ensure:

 Longer service life

 Stable structural integrity

 Lower maintenance cost

 Reliability in constant seawater exposure

Marine grade aluminum is a popular choice for marine applications due to its superior corrosion resistance, strength and versatility.

Marine grade aluminum alloys are often recommended to be alloys with high magnesium content, such as 5000 series metals. This enhances their corrosion resistance and overall durability in salt water environments. One of the better performing corrosion resistant aluminum sheets is 5083 H116.

 What is the yield strength of aluminium 5086 H116?

For –5083 H116 base material, measured at 20 °C (68 °F) ambient temperature, yield strength decreases from 210 MPa (30 ksi) to 120 MPa (17 ksi) and ultimate strength from 290 to 260 MPa (42 to 38 ksi).

Alloy Temper Thickness mm Tensile Strength RmMPa Specified non-proportional tensile strength Rp0.2 Mpa Elongation%
A50 mm A
5083 H116 3.00-50.00 ≥305 ≥215 ≥10 ≥10
H321 3.00-50.00 305-385 ≥215 ≥12 ≥10
H112 6.00-50.00 ≥275 ≥125 ≥12 ≥10

In addition to its light weight, Aluminum 5083 H116 can better increase the speed of the ship and extend the life of the ship.

 What are the advantages of 5083 h116 Aluminum Sheet?

1. Excellent welding performance

In the shipbuilding industry, the performance lost by welding can not be restored by re-heat treatment, but 5083 H116 aluminum plate has good resistance to weld cracking performance, the performance of the joints after welding is not much difference, very conducive to shipbuilding welding.

2. Good corrosion resistance

5083 H116 aluminum plate after exposure to air, the surface can form a layer of dense oxide film, can resist the erosion of various elements in seawater. In addition, the use of anodic oxidation technology can bring better strength and bright surface.

3. Good cold and hot molding performance

Ships need to undergo cold and hot processing during the construction process, so marine aluminum alloy needs to be easy to process and form, and no cracking defects can occur during processing, 5083 marine aluminum plate can well meet the performance requirements of the shipbuilding industry.

 5083 H116 Marine Grade Aluminum Plate Applications

Hull Structure: 5083 H116 ship plate can be used in various parts of the hull structure, including hull, deck, bulkheads, ship superstructures, etc. It has high strength and excellent corrosion resistance, and is able to withstand the ship's loads and stresses in the navigation and marine environment.

 

Ship's internal parts: 5083 H116 ship plate is also suitable for ship's internal parts and equipment, such as ship's cargo hold, cabin bulkheads, ship's staircase, deck cover, etc. Its lightweight design helps to reduce the ship's total weight, improve fuel efficiency and load capacity.

 

Marine Deck Equipment: 5083 H116 Sheet is commonly used for the manufacture of marine deck equipment, such as gangways, portholes, marine cranes, doors, etc. Its high strength and corrosion resistance enable these equipment to work in harsh marine environments and maintain structural integrity.

 

Marine Tanks and Fuel Tanks: 5083 Marine Aluminum Plate is commonly used in the manufacture of marine tanks and fuel tanks due to its good corrosion resistance, which can be used for storing and transporting a variety of liquids, such as fuel oil, fresh water and other chemicals.

5083 H116 AL Sheet5083 ALUMINUM SHEET

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