Aluminium 5083
Scope
Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments. Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65 °C.
Application
This material is used for pressure vessels, tip truck bodies, rail cars, ship building, vehicle bodies and mine skips & cages
Supplied Forms
Shate
Plate
Alloy Designations
Alloy 5083 also corresponds to: GM41, A95083, AIMg 4.5 Mn and Al Mg 4.5 Mn 0.7.
Temper Types
The most common tempers for 5083 aluminium are: O - Soft, H111 - Some work hardening imparted by shaping processes but less than required fro H11 temper and H32 - Work hardened by rolling then stabilised by low temperature heat treatment to quarter hard.
Fabrication
Solderability: Poor
Weldability - Gas: Average
Weldability - Arc: Excellent
Weldability - Resistance: Excellent
Brazability: Poor
Workability - Cold: Average
Machinability: Poor
Welding
When welding 5083 to itself or another alloy from the same sub-group, the recommended filler metal is 5183. Other suitable fillers are 5356 and 5556.
Corrosion resistance
Corrosion resistance is one of the most outstanding features of this aluminium alloy. It is widely used across various industries for its excellent corrosion resistance compared to other alloys even when exposed to seal water and high temperature environments. Commonly applications include chemical processing plants where exposure to corrosive materials is inevitable.
Heat resistance
Aluminium 5083 also has excellent heat resistance properties and is often used in high-temperature environments such as the engine or furnace. It has a high melting point allowing it to withstand temperatures of up to 5000C without significant degradation or loss of strength or formability.
The alloy has excellent thermal conductivity. This makes the material an ideal choice for applications requiring heat resistance and thermal conductivity such as engine blocks and exhaust systems.
Machining
This alloy is easily machinable because of its softness which also reduces wear on the cutting tools. It’s easy to machine it into complex shapes without compromising quality or accuracy because aluminium 5083 has low ductility.
Chemical Compositions
| Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 - 1.00 |
| Iron (Fe) | 0.40 Typical |
| Copper (Cu) | 0.10 Typical |
| Magnesium (Mg) | 4.00 - 4.90 |
| Silicon (Si) | 0.40 Typical |
| Zinc (Zn) | 0.25 Typical |
| Titanium (Ti) | 0.15 Typical |
| Aluminium (Al) | Balance |
Chemical Compositions
| Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 - 1.00 |
| Iron (Fe) | 0.40 Typical |
| Copper (Cu) | 0.10 Typical |
| Magnesium (Mg) | 4.00 - 4.90 |
| Silicon (Si) | 0.40 Typical |
| Zinc (Zn) | 0.25 Typical |
| Titanium (Ti) | 0.15 Typical |
| Aluminium (Al) | Balance |
Mechanical properties at room temperature
| Property | Value |
|---|---|
| Proof Strength | 145 MPa |
| Tensile Strength | 300 MPa |
| Elongation | 23% |
| Shear Strength | 175 MPa |
| Hardness Vickers | 75 HV |
Mechanical properties at room temperature
| Property | Value |
|---|---|
| Proof Strength | 145 MPa |
| Tensile Strength | 300 MPa |
| Elongation | 23% |
| Shear Strength | 175 MPa |
| Hardness Vickers | 75 HV |
Reference data for some physical properties (for guidance only)
| Property | Value |
|---|---|
| Density | 2.65 Kg/m3 |
| Melting Point | 570 °C |
| Thermal Expansion | 25 x 10-6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 121W/m.K |
| Electrical Resistivity | 0.058 x 10-6 Ω .m |
Reference data for some physical properties (for guidance only)
| Property | Value |
|---|---|
| Density | 2.65 Kg/m3 |
| Melting Point | 570 °C |
| Thermal Expansion | 25 x 10-6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 121W/m.K |
| Electrical Resistivity | 0.058 x 10-6 Ω .m |
Editor
thyssenkrupp Materials (UK) Ltd
Cox’s Lane
Cradley Heath
West Midlands
B64 5QU
Important Note
Information given in this data sheet about the condition or usability of materials respectively products are no warranty for their properties, but act as a description. The information, we give on for advice, comply to the experiences of the manufacturer as well as our own. We cannot give warranty for the results of processing and application of the products.