Aluminium 5083 is known for exceptional performance in extreme environments. Aluminium 5083 is highly resistant to attack by both seawater and industrial chemical environments.
Aluminium Alloys Explained
Aluminium 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.
Chemical Composition of Aluminium Alloy 5083
Table 1. Chemical composition for aluminium alloy 5083
| Element |
% Present |
| Si |
0.4 |
| Fe |
0.4 |
| Cu |
0.1 |
| Mn |
0.4-1.0 |
| Mg |
4.0-4.9 |
| Zn |
0.25 |
| Ti |
0.15 |
| Cr |
0.05-0.25 |
| Al |
Balance |
Properties of Aluminium Alloy 5083
Mechanical Properties of Aluminium Alloy 5083
Table 2 (a). Mechanical properties for aluminium alloy 5083 Soft O/H111
BS EN 485-2:2008
Sheet
0.2 - 6.3mm Thick |
| Property |
Value |
| Proof Stress |
125 Min MPa |
| Tensile Strength |
275 - 350 MPa |
| Hardness Brinell |
75 HB |
*Properties above are for material in the Soft O/H111 condition
Table 2 (b). Mechanical properties for aluminium alloy 5083 Soft O/H111
BS EN 485-2:2008
Plate
6.3mm to 80mm |
| Property |
Value |
| Proof Stress |
115 Min MPa |
| Tensile Strength |
270 - 345 MPa |
| Hardness Brinell |
75 HB |
*Properties above are for material in the Soft O/H111 condition
Table 2 (c). Mechanical properties for aluminium alloy 5083 Soft O/H111
BS EN 485-2:2008
Plate
80mm to 120mm |
| Property |
Value |
| Proof Stress |
110 Min MPa |
| Tensile Strength |
260 Min MPa |
| Hardness Brinell |
70 HB |
| Elongation A |
12 Min % |
*Properties above are for material in the Soft O/H111 condition
Table 2 (d). Mechanical properties for aluminium alloy 5083 H32
BS EN 485-2:2008
Sheet
0.2mm to 6.00mm |
| Property |
Value |
| Proof Stress |
215 Min MPa |
| Tensile Strength |
305 - 380 MPa |
| Hardness Brinell |
89 HB |
*Properties above are for material in the H32 condition
Physical Properties of Aluminium Alloy 5083
Table 3. Physical properties for aluminium alloy 5083
| Property |
Value |
| Density |
2650 kg/m3 |
| Melting Point |
570°C |
| Modulus of Elasticity |
72 GPa |
| Electrical Resistivity |
0.58 x 10-6 Ω.m |
| Thermal Conductivity |
121 W/m.K |
| Thermal Expansion |
25 x 10-6/K |
Alloy Designations
Aluminium 5083 also corresponds to the following standard designations and specifications:
- Al Mg4.5Mn0.7
- AlMg4.5Mn
- GM41
- A95083
Fabrication of Aluminium Alloy 5083
Welding
When welding Aluminium 5083 to itself or another alloy from the same sub-group, the recommended filler metal is 5183. Other suitable fillers are 5356 and 5556.
Fabrication Response
Table 4. Fabrication response for aluminium alloy 5083
| Process |
Rating |
| Workability – Cold |
Average |
| Machinability |
Poor |
| Weldability – Gas |
Average |
| Weldability – Arc |
Excellent |
| Weldability – Resistance |
Excellent |
| Brazability |
Poor |
| Solderability |
Poor |
Temper
The most common tempers for Aluminium 5083 are:
- 0 – Annealed wrought alloy
- H111 – Some work hardening imparted by shaping processes but less than required for a H11 temper.
- H32 – Work hardened and stabilised with a quarter hard temper.
Applications of Aluminium Alloy 5083
Aluminium 5083 is used in:
- Shipbuilding
- Rail cars
- Vehicle bodies
- Tip truck bodies
- Mine skips and cages
- Pressure vessels
Supplied Forms
Aluminium 5083 is generally supplied as a flat rolled product in plate and sheet form.
DISCLAIMER
This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temper, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon.
As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.
Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.
This information has been sourced, reviewed and adapted from materials provided by Aalco - Ferrous and Non-Ferrous Metals Stockist.
For more information on this source, please visit Aalco - Ferrous and Non-Ferrous Metals Stockist.