Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of aluminum alloy 5083 in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Aluminum Alloy 5083, also known as AlMg4.5Mn0.7 Alloy, is a high-strength, marine-grade aluminum alloy renowned for exceptional corrosion resistance, outstanding weldability, and excellent performance in extreme environments. It is widely used in marine, shipbuilding, offshore platforms, and cryogenic applications, as well as transportation and heavy-duty structural projects.
We supply 5083 aluminum in sheets, plates, bars, and extrusions, with thickness ranging from 3 mm to 200 mm, widths up to 2000 mm, and custom lengths. H116 / H321 / H112 tempers ensure high strength and excellent corrosion resistance even in seawater and highly corrosive conditions.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Products Specifications
| Form | Thickness / Diameter | Width / OD | Length / Standard | Temper | Surface Finish | Typical Applications |
|---|---|---|---|---|---|---|
| Sheet / Plate | 3 – 200 mm | 1000 – 2000 mm | Cut-to-length / Coil | H116 / H321 / H112 | Mill finish, Anodized | Ship hulls, Offshore platforms, Marine structures, Cryogenic tanks |
| Bar / Rod | 5 – 200 mm | - | 1000 – 6000 mm | H116 / H321 | Mill finish | Structural supports, Heavy-duty frames, Industrial equipment |
| Extrusion Profile | 1 – 200 mm | Custom | Custom length | H116 / H321 | Mill finish, Anodized | Marine fittings, Heavy-duty structural components, Custom profiles |
Chemical Composition (Typical 5083 Alloy, %)
| Element | % |
|---|---|
| Si | ≤ 0.4 |
| Fe | ≤ 0.4 |
| Cu | 0.1 |
| Mn | 0.4 – 1.0 |
| Mg | 4.0 – 4.9 |
| Cr | 0.05 – 0.25 |
| Zn | ≤ 0.25 |
| Ti | ≤ 0.15 |
| Al | Balance |
Mechanical Properties (H116 / H321 / H112)
| Property | 5083-H116 | 5083-H321 | 5083-H112 |
|---|---|---|---|
| Tensile Strength | 275 – 305 MPa | 275 – 305 MPa | 215 – 275 MPa |
| Yield Strength | 145 – 210 MPa | 145 – 210 MPa | 145 – 200 MPa |
| Elongation | 12 – 16% | 12 – 16% | 12 – 16% |
| Hardness (HB) | 70 – 90 | 70 – 90 | 60 – 80 |
| Density | 2.66 – 2.70 g/cm³ | 2.66 – 2.70 g/cm³ | 2.66 – 2.70 g/cm³ |
Products Features
Exceptional corrosion resistance, especially in marine and seawater environments
High strength with excellent weldability and forming capability
Maintains mechanical properties in cryogenic and extreme conditions
Lightweight with high strength-to-weight ratio
OEM-friendly: custom thickness, width, length, and extrusion profiles
Products Applications
Marine vessels: ship hulls, decks, superstructures
Offshore platforms and structures
Cryogenic tanks and containers
Transportation: truck bodies, trailers, containers
Heavy-duty industrial frames and structural components
High-performance fabrication requiring corrosion resistance and strength
Inspection & Quality Assurance
100% surface inspection for scratches, dents, or oxidation
Dimensional verification: thickness, width, length
Mechanical & chemical property testing per ASTM B209 / EN 573
Protective film optional for anodized or painted products
Optional third-party inspection for critical marine projects
Looking for premium Aluminum Alloy 5083 for marine or heavy-duty projects?
We provide:
Fast quotes and samples tailored to your project
Expert guidance for cutting, welding, machining, and surface finishing
OEM customization for sizes, thickness, profiles, and finishes
Reliable international shipping with export-grade packaging
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
1. What is the main advantage of 5083 aluminum?
5083 offers superior corrosion resistance in seawater and marine environments, combined with high strength and excellent weldability.
2. What tempers are available for 5083?
H116: Common for marine applications
H321: Excellent for welded structures
H112: General-purpose, slightly lower strength
3. Can 5083 be welded or machined?
Yes. Excellent weldability (TIG, MIG, spot) and machinability. Post-weld inspection recommended for critical applications.
4. Is 5083 suitable for cryogenic applications?
Yes. It retains mechanical strength at extremely low temperatures, making it ideal for cryogenic tanks.
5. Can 5083 aluminum be anodized or painted?
Yes, anodizing or painting improves surface aesthetics and further enhances corrosion resistance.
6. Custom sizes available?
Yes. Sheets, plates, bars, and extrusion profiles can be customized for thickness, width, length, and surface finish.
7. Certifications provided?
Mill Test Certificate (EN 10204 3.1)
Chemical & mechanical property reports
Optional third-party inspection (SGS, BV, Intertek)
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