5083 aluminum coil is one of the most widely used marine-grade aluminum products in the world. It belongs to the 5xxx series (Al-Mg alloy) and is known for its exceptional corrosion resistance, high strength, and excellent weldability. Whether you need it for shipbuilding, automotive, or pressure vessel applications, 5083 aluminum coil delivers outstanding performance in demanding environments.
5083 aluminum coil is a high-magnesium aluminum alloy rolled into coil form for easy handling and processing. The alloy designation "5083" refers to its specific chemical composition within the Aluminum Association's numbering system. It is produced in a range of tempers, including H111, H116, H321, and O, each suited to different applications.
5083 aluminum coil is non-heat-treatable. Its strength comes from solid-solution hardening and work hardening. This makes it ideal for applications where welding is required, since it retains high strength in the weld zone — unlike many heat-treatable alloys.
The composition of 5083 aluminum is tightly controlled to ensure consistent mechanical properties. The key elements are:
| Element | Percentage (%) |
|---|---|
| Magnesium (Mg) | 4.0 – 4.9 |
| Manganese (Mn) | 0.40 – 1.0 |
| Chromium (Cr) | 0.05 – 0.25 |
| Silicon (Si) | ≤ 0.40 |
| Iron (Fe) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.10 |
| Zinc (Zn) | ≤ 0.25 |
| Titanium (Ti) | ≤ 0.15 |
| Aluminum (Al) | Balance |
The high magnesium content (4.0–4.9%) gives 5083 its characteristic strength and corrosion resistance. The addition of manganese and chromium further improves these properties while maintaining good formability.
5083 aluminum coil is chosen whenever a combination of high strength, weldability, and corrosion resistance is required. Major applications include:
Marine and Shipbuilding. 5083 is the preferred alloy for boat hulls, ship decks, and offshore structural components. The H116 and H321 tempers are specifically designed to resist exfoliation and stress corrosion in seawater environments.
Automotive and Transportation. 5083 aluminum is used in automotive body panels, fuel tanks, and structural parts. Its light weight and high strength reduce vehicle weight and improve fuel efficiency.
Pressure Vessels and Cryogenic Tanks. Because 5083 retains its toughness at low temperatures, it is widely used in LNG tanks, cryogenic storage vessels, and pressure vessels.
Construction and Architecture. 5083 aluminum coil is used in curtain walls, building facades, and structural components where durability and weather resistance are critical.
Military and Defense. Armored vehicles and military vessels frequently use 5083 plate and coil due to its ballistic resistance.
Rail Transportation. Train bodies and high-speed rail components are manufactured using 5083 to reduce weight while maintaining structural integrity.
5083 aluminum coil is available in a wide range of standard sizes, which can also be customized to meet your project specifications.
| Parameter | Standard Range |
|---|---|
| Thickness | 0.5 mm – 6.0 mm (coil form) |
| Width | 100 mm – 2,650 mm |
| Inner Diameter | 505 mm / 610 mm |
| Outer Diameter | Up to 2,000 mm |
| Coil Weight | 1 MT – 10 MT |
For thicker material (above 6 mm), 5083 is typically supplied as aluminum plate rather than coil. Common coil tempers include O (annealed), H111, H116, H321, and H112.
If you need non-standard widths or thicknesses, most manufacturers can produce 5083 aluminum coil to your exact specifications.
The price of 5083 aluminum coil depends on several factors:
Base Metal Price. The London Metal Exchange (LME) aluminum price is the primary driver. 5083 coil pricing moves in line with global aluminum market conditions.
Alloy Premium. Because 5083 contains a relatively high proportion of magnesium, it carries a premium over standard 1xxx or 3xxx series alloys.
Thickness and Temper. Thinner gauges and harder tempers typically cost more per kilogram due to additional processing.
Order Quantity. Larger orders (typically 5 MT or more) qualify for better pricing. Full-container orders offer the most competitive rates.
Estimated Price Range. 5083 aluminum coil typically ranges from USD 2,500 to USD 3,500 per metric ton, depending on market conditions and specifications. For the most current price, please contact us directly — we provide real-time quotes based on your quantity and delivery requirements.
5083 aluminum is known for excellent weldability. It can be joined using MIG (GMAW) and TIG (GTAW) processes with minimal risk of hot cracking.
Recommended Welding Wire. The most common 5083 aluminum welding wire is ER5356 (AWS A5.10). ER5183 is also widely used and is specifically formulated to match the composition of 5083 base metal, providing optimal strength retention in the weld joint. For applications requiring maximum ductility, ER5356 is preferred.
Key Welding Tips:
After welding, 5083 retains approximately 80–90% of its base metal strength in the heat-affected zone, making it one of the strongest weldable aluminum alloys available.
Many customers compare 5083 and 5052 aluminum coil when selecting a marine or structural alloy.
| Property | 5083 | 5052 |
|---|---|---|
| Mg Content | 4.0–4.9% | 2.2–2.8% |
| Tensile Strength | 270–350 MPa | 170–260 MPa |
| Yield Strength | 125–250 MPa | 65–210 MPa |
| Corrosion Resistance | Excellent | Very Good |
| Weldability | Excellent | Excellent |
| Typical Use | Marine, structural | Sheet metal, general |
| Relative Price | Higher | Lower |
5083 is the better choice when maximum strength and seawater corrosion resistance are required. 5052 is widely used for lighter-duty applications such as fuel tanks, road signs, and general sheet metal work, where cost is a primary consideration.
Choosing the right temper is critical for 5083 applications:
H116. This temper is specifically designed for marine environments. It provides excellent resistance to exfoliation corrosion and stress corrosion cracking. Most commonly used in boat hull plates and marine structural components.
H321. Similar to H116 in corrosion resistance. H321 is produced by strain hardening and stabilizing. Ideal for welded structures and shipbuilding.
H111. A slightly softer temper produced by annealing followed by slight strain hardening. Suitable for applications requiring good formability.
O (Annealed). The softest, most ductile temper. Used when maximum formability is needed.
As a direct aluminum manufacturer with over 15 years of production experience, we supply 5083 aluminum coil to customers in more than 60 countries worldwide, including the United States, Canada, Australia, Norway, Germany, Saudi Arabia, and South Korea.
Our advantages:
We export 5083 aluminum coil primarily to North America, Europe, Southeast Asia, the Middle East, and Oceania. Our products are widely used in shipbuilding yards, pressure vessel manufacturers, automotive parts suppliers, and construction companies.
Get a competitive price on 5083 aluminum coil today. Tell us your required thickness, width, temper, and quantity, and we will respond with a detailed quotation within 24 hours.
Contact us to discuss your specifications — we are ready to support both small trial orders and large-volume contracts.
