GNEE 5083 Aluminium Alloy Properties
GNEE 5083 aluminium alloy is a high-performance material widely used across marine, aerospace, automotive, and railway industries. Known for its excellent mechanical, physical, and chemical properties, it is one of the most popular non-heat-treatable aluminium alloys in engineering applications.
1. Mechanical Properties of 5083 Aluminium Alloy
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 275 MPa |
| Yield Strength | ≥ 125 MPa |
| Elongation | ≥ 12% |
| Hardness (HB) | ≤ 68 |
Strength: GNEE 5083 aluminium alloy exhibits good strength among non-heat-treatable alloys, offering strong resistance to external stress.
Machinability: The alloy has excellent machinability, allowing easy cutting, drilling, and processing.
Weldability: With superior arc welding performance, 5083 maintains high strength and tight sealing after welding, making it ideal for structures requiring reliable joints.
2. Physical Properties of 5083 Aluminium Alloy
| Property | Typical Value |
|---|---|
| Density | 2.68 g/cm³ |
| Melting Point | 640°C |
| Electrical Conductivity | 31.5–35.5% IACS |
| Coefficient of Linear Expansion (20–100°C) | 23 × 10⁻⁶ /K |
| Thermal Conductivity | 120–160 W/(m·K) |
Thanks to its low density, GNEE 5083 aluminium alloy provides excellent lightweight performance, suitable for applications that demand weight reduction without compromising strength. Its high melting point ensures stability in elevated temperatures, while good electrical and thermal conductivity make it versatile across industrial uses.
3. Chemical Composition of 5083 Aluminium Alloy
| Element | Content (%) |
|---|---|
| Aluminium (Al) | Balance |
| Magnesium (Mg) | 4.0–4.9 |
| Manganese (Mn) | 0.40–1.0 |
| Chromium (Cr) | 0.05–0.25 |
| Iron (Fe) | ≤ 0.4 |
| Zirconium (Zr) | ≤ 0.25 |
| Titanium (Ti) | ≤ 0.15 |
| Copper (Cu) | ≤ 0.1 |
| Tin (Sn) | ≤ 0.1 |
| Silicon (Si) | ≤ 0.4 |
Corrosion Resistance: GNEE 5083 aluminium alloy offers outstanding corrosion resistance, particularly against seawater and acidic environments, making it the preferred material for marine engineering and shipbuilding applications.
4. Applications
With its combination of light weight, high strength, and corrosion resistance, GNEE 5083 aluminium alloy is extensively used in:
Shipbuilding: hulls, decks, and marine structures
Aerospace: aircraft structural parts and components
Automotive: lightweight vehicle panels and frames
Railway Vehicles: body structures and transportation components
Conclusion
GNEE 5083 aluminium alloy stands out for its mechanical strength, excellent corrosion resistance, and superior weldability. Its reliable performance under harsh environmental conditions makes it a preferred choice for modern engineering and industrial applications worldwide.