5083 Aluminum Coil
5083 Aluminum Alloy: The Ultimate Marine-Grade Solution for Extreme Environments
Superior Performance in Harsh Conditions
5083 aluminum alloy (UNS A95083) stands as the industry benchmark for marine and offshore applications, delivering exceptional corrosion resistance and structural integrity. With 4.0-4.9% magnesium content, this non-heat-treatable alloy achieves 290 MPa tensile strength (per ASTM B928) while maintaining 22% elongation – outperforming standard marine alloys in both strength and durability.
Why 5083 Aluminum?
- Seawater Resistance: 0.01 mm/year corrosion rate (ASTM G67)
- High Strength: 145 MPa yield strength in H116 temper
- Weldability: 92% joint efficiency with ER5183 filler
- Cryogenic Stability: Maintains properties at -200°C
Technical Specifications
1. Chemical Composition (ASTM B209 Standard)
| Element | Mg | Mn | Cr | Fe | Al |
|---|---|---|---|---|---|
| % Range | 4.0-4.9 | 0.4-1.0 | 0.05-0.25 | ≤0.40 | Balance |
Trace elements: Cu≤0.10%, Zn≤0.25%, Si≤0.40%
2. Mechanical Properties
| Temper | Tensile (MPa) | Yield (MPa) | Elongation (%) | Hardness (HV) |
|---|---|---|---|---|
| O | 275-315 | 125-160 | 20-24 | 80 |
| H116 | 290-340 | 145-195 | 18-22 | 90 |
Test methods: ASTM E8 (tensile), ISO 6507-1 (hardness)
3. Physical Characteristics
| Parameter | Value | Unit |
|---|---|---|
| Density | 2.66 | g/cm³ |
| Melting Range | 570-640 | °C |
| CTE | 23.8×10⁻⁶ | /°C |
| Electrical Conductivity | 29 | % IACS |
Custom Manufacturing Options
Available Dimensions:
- Thickness: 1.0-150mm (±0.5% tolerance)
- Width: 500-2500mm (custom slitting available)
- Length: 1000-12000mm (precision cutting)
Surface Finishes:
- Mill finish (standard Ra 1.2-2.0μm)
- Embossed patterns (0.3-1.5mm depth)
- Marine-grade anodizing (20-30μm)
Value-Added Services:
- CNC machining (±0.1mm accuracy)
- Hydroforming for complex shapes
- MIG/TIG welding with certified procedures
Industrial Applications
Marine & Offshore:
- Ship hulls (6-25mm thickness)
- Offshore platform structures
- Subsea components
Transportation:
- High-speed train bodies
- Heavy truck trailers
- Aircraft fuel tanks
Special Applications:
- LNG storage tanks
- Pressure vessels
- Chemical processing equipment
Performance Comparison
| Property | 5083 | 5052 | 6061 |
|---|---|---|---|
| Tensile (H116) | 290 MPa | 210 MPa | 310 MPa |
| Corrosion | Excellent | Good | Fair |
| Weldability | Excellent | Good | Fair |
| Cost Index | 1.2 | 1.0 | 1.1 |
Fabrication Guidelines
Forming Recommendations:
- Minimum bend radius: 2.5T for H116 temper
- Annealing at 345°C for cold-worked material
- Deep draw ratio: 1.6:1 maximum
Welding Parameters:
- Preferred process: GMAW (MIG)
- Filler wire: ER5183
- Shielding gas: Argon (20-25 CFH flow rate)
Quality Assurance
- 100% ultrasonic testing
- Third-party inspection services
- Full material traceability
Certifications: DNV GL, ABS, Lloyds Register
Packaging: VCI-coated wooden crates
Lead Time: 10-15 days after deposit
Why 5083 Dominates Marine Applications?
First, its magnesium-chromium composition enhances strength. Second, the alloy maintains ductility in cryogenic conditions. Moreover, it resists stress corrosion cracking. Additionally, global certification ensures quality. Finally, proven performance justifies its premium.
For offshore projects, specify DNV-certified material. Marine applications require H116 temper. Regardless of application, 5083 delivers unmatched reliability.
Packing And Delivery
