5083 Marine Aluminum Plate and Sheet Supplier

5083 aluminum alloy is well known for its outstanding performance in marine and offshore environments. With excellent resistance to seawater and other corrosive elements, it is widely used in ship hulls, shipbuilding, and various marine applications. The alloy also exhibits good weldability and formability, making it easy to fabricate and process.

5083 marine aluminum plate is a high-strength, non-heat-treatable alloy belonging to the 5xxx series. Its main alloying element is magnesium (4.0-4.9%), with moderate amounts of manganese (0.40-1.0%) and chromium (0.05-0.25%). It offers high corrosion resistance, especially against seawater and marine atmospheres; excellent weldability, suitable for various welding methods; and medium strength for structural applications.

5083 Aluminum Alloy Processing Techniques

• Casting: Suitable for small-batch production, including sand casting, permanent mold casting, and low-pressure casting.

• Forging: Covers both hot and cold forging, ideal for large and complex parts.

• Rolling: Reduces the material to the required sheet thickness via rolling mills, perfect for mass production.

Common Tempers of 5083 Marine Aluminum Plate

• O Temper (Annealed): Excellent plasticity and formability.

• H111 / H112 Tempers: Balanced strength and weldability.

• H116 / H321 Tempers: Specially designed for marine environments, offering enhanced corrosion resistance and stability.

Key Features of 5083 Marine Grade Aluminum Plate

1. Excellent Corrosion Resistance
Performs reliably in seawater and chemical environments without significant degradation over time.

2. High Strength & Lightweight
Weighs only one-third of steel, reducing overall vessel weight, improving speed, and enhancing fuel efficiency.

3. Superior Weldability
Compatible with almost all welding techniques, delivering strong and durable welded joints.

4. Stable Low-Temperature Performance
Maintains toughness even at cryogenic temperatures as low as -196℃, making it suitable for LNG storage tanks and low-temperature ship structures.

5. Comprehensive Certifications
Certified by DNV, ABS, LR, CCS, BV, NK, and other international classification societies, ensuring compliance with global shipbuilding standards.

Common Sizes of 5083 Marine Aluminum Plate

MC Aluminum's 5083 marine-grade aluminum plate is available in a variety of sizes to meet the needs of various ship designs.

Thicknesses typically range from a few millimeters to hundreds of millimeters. Stock thicknesses typically range from 3 to 50 mm.

Standard widths include 1250mm, 1500mm, and 2000mm, with some suppliers offering extra-wide sizes up to 2650mm.

Lengths can be customized, with common lengths including 2500mm, 3000mm, 6000mm, 8000mm, 9000mm, and even 12000mm.

In addition to standard plate sizes such as 2x6m and 2x8m, we also offer custom sizes to meet customer needs.

Market Price of 5083 Marine Aluminum Plate

The price of marine grade 5083 aluminum plates is influenced by several factors, including alloy temper, thickness, order quantity, and current market supply and demand.

Minimum order quantities also affect pricing, typically ranging from 100kg to 5 tons. Bulk orders usually benefit from more competitive pricing.

As a professional marine aluminum manufacturer, MC Aluminum supplies 5 series and 6 series marine-grade alloys. We maintain a large stock of 5083, 5086, 5052, 6061, and 6082 plates, pipes, fittings, and extrusions. Whether you are building high-speed ferries, naval vessels, passenger ships, luxury yachts, or small boats, MC Aluminum provides reliable materials and tailored solutions to meet your shipbuilding needs.