Aluminium-5083-H321-Sheet-Plate.pdf
Range
Plates can be cut according to customer specifications. Please contact GNEE for more details.
The plate sizes 4000 x 2000 mm and 6000 x 2000 mm are 3.2 certified by:
LRS
DNV
BV
ABS
| Sheet Size | Thickness Range |
|---|---|
| 4000 x 2000 mm | 3.0 mm – 25.0 mm |
| 6000 x 2000 mm | 3.0 mm – 40.0 mm |
5083 aluminum plate is the highest-strength non-heat-treatable marine-grade aluminum alloy, providing excellent resistance to seawater corrosion. It is well known for outstanding performance in harsh environments, being highly resistant to both seawater and industrial chemical attack.
Mechanical properties listed below correspond to the H321 temper.
Related Specifications
Alloy 5083 corresponds to the following standard designations and specifications (though not necessarily direct equivalents):
GM41
A95083
AlMg4.5Mn
Al Mg4.5 Mn0.7
Temper Types
The most common temper for 5083 aluminum is H321.
Chemical Composition
Alloy 5083 – BS EN 573-3
| Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 – 1.00 |
| Iron (Fe) | 0.00 – 0.40 |
| Copper (Cu) | 0.00 – 0.10 |
| Magnesium (Mg) | 4.00–4.90 |
| Silicon (Si) | 0.00 – 0.40 |
| Zinc (Zn) | 0.00 – 0.25 |
| Chromium (Cr) | 0.05 – 0.25 |
| Titanium (Ti) | 0.00 – 0.15 |
| Aluminum (Al) | Balance |
Mechanical Properties
Sheet thickness: 0.2 mm – 6.0 mm (BS EN 485-2)
| Property | Value |
|---|---|
| Proof Stress | 240 MPa (min) |
| Tensile Strength | 330 MPa |
| Elongation (A50 mm) | 17% |
| Shear Strength | 185 MPa |
| Hardness (Vickers) | 95 HV |
General Physical Properties
| Property | Value |
|---|---|
| Density | 2.65 g/cm³ |
| Melting Point | 570°C |
| Thermal Expansion | 25 × 10⁻⁶ /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 121 W/m·K |
| Electrical Resistivity | 0.058 × 10⁻⁶ Ω·m |
Applications
Shipbuilding
Railcars
Vehicle bodies
Tipper truck bodies
Mine skips and cages
Pressure vessels
Characteristics
Excellent strength retention after welding
Outstanding performance under extreme environmental conditions
Not suitable for continuous service above 65°C
Classified as a marine-grade aluminum alloy
Fabrication
| Process | Rating |
|---|---|
| Workability – Cold | Average |
| Machinability | Poor |
Weldability
When welding 5083 aluminum to itself or to another alloy in the same series, the recommended filler metal is 5183. Other suitable alternatives include 5356 and 5556.
| Process | Rating |
|---|---|
| Weldability – Gas | Average |
| Weldability – Arc | Excellent |
| Weldability – Resistance | Excellent |
| Brazability | Poor |
| Solderability | Poor |
GNEE Aluminum provides high-quality 5083 marine-grade aluminum plates certified to major classification societies, offering custom cutting and reliable technical support for marine, transport, and industrial applications.
