Aluminium alloy 6082 is a medium strength alloy with excellent corrosion resistance. It has the highest strength of the 6000 series alloys. Alloy 6082 is known as a structural alloy. In plate form, Aluminium alloy 6082 is the alloy most commonly used for machining.
Aluminium Alloys Explained
As a relatively new alloy, the higher strength of Aluminium alloy 6082 has seen it replace 6061 in many applications. The addition of a large amount of manganese controls the grain structure which in turn results in a stronger alloy.
In the T6 and T651 temper, Aluminium alloy 6082 machines well and produces tight coils of swarf when chip breakers are used.
Chemical Composition of Aluminium alloy 6082
Table 1. Chemical composition for aluminium alloy 6082
Element |
% Present |
Si |
0.7-1.3 |
Fe |
0.0-0.5 |
Cu |
0.0-0.1 |
Mn |
0.4-1.0 |
Mg |
0.6-1.2 |
Zn |
0.0-0.2 |
Ti |
0.0-0.1 |
Cr |
0.0-0.25 |
Al |
Balance |
Properties of Aluminium alloy 6082
Mechanical Properties of Aluminium alloy 6082
Table 2 (a). Mechanical properties for aluminium alloy 6082 Soft O
BS EN 485-2:2008
Sheet
0.4mm to 6.00mm |
Property |
Value |
Proof Stress |
85 Max MPa |
Tensile Strength |
150 Max MPa |
Hardness Brinell |
40 HB |
*Properties above are for material in the Soft O condition
Table 2 (b). Mechanical properties for aluminium alloy 6082 T4
BS EN 755-2:2008
Extruded Rod,Bar,Tube & Profiles
Up to 200mm Dia.or A/F, Up to 25mm WT tube & Prof |
Property |
Value |
Proof Stress |
110 Min MPa |
Tensile Strength |
205 Min MPa |
Elongation A50 mm |
12 Min % |
Hardness Brinell |
70 HB |
Elongation A |
14 Min % |
*Properties above are for material in the T4 condition
Table 2 (c). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Rod & Bar
Up to 20mm Dia. & A/F |
Property |
Value |
Proof Stress |
250 Min MPa |
Tensile Strength |
295 Min MPa |
Elongation A50 mm |
6 Min % |
Hardness Brinell |
95 HB |
Elongation A |
8 Min % |
*Properties above are for material in the T6 condition
Table 2 (d). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Rod & Bar
20mm to 150mm Dia. & A/F |
Property |
Value |
Proof Stress |
260 Min MPa |
Tensile Strength |
310 Min MPa |
Hardness Brinell |
95 HB |
Elongation A |
8 Min % |
*Properties above are for material in the T6 condition
Table 2 (e). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Bar
150mm to 200mm Dia. & A/F |
Property |
Value |
Proof Stress |
240 Min MPa |
Tensile Strength |
280 Min MPa |
Hardness Brinell |
95 HB |
Elongation A |
6 Min % |
*Properties above are for material in the T6 condition
Table 2 (f). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Bar
200mm to 250mm Dia. & A/F |
Property |
Value |
Proof Stress |
200 Min MPa |
Tensile Strength |
270 Min MPa |
Hardness Brinell |
95 HB |
Elongation A |
6 Min % |
*Properties above are for material in the T6 condition
Table 2 (g). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Tube
Up to 5mm Wall Thickness |
Property |
Value |
Proof Stress |
250 Min MPa |
Tensile Strength |
290 Min MPa |
Elongation A50 mm |
6 Min % |
Hardness Brinell |
95 HB |
Elongation A |
8 Min % |
*Properties above are for material in the T6 condition
Table 2 (h). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Tube
5mm to 25mm Wall Thickness |
Property |
Value |
Proof Stress |
260 Min MPa |
Tensile Strength |
310 Min MPa |
Elongation A50 mm |
8 Min % |
Hardness Brinell |
95 HB |
Elongation A |
10 Min % |
*Properties above are for material in the T6 condition
Table 2 (i). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Open & Hollow Profile
Up To 5mm Wall Thickness |
Property |
Value |
Proof Stress |
250 Min MPa |
Tensile Strength |
290 Min MPa |
Elongation A50 mm |
6 Min % |
Hardness Brinell |
95 HB |
Elongation A |
8 Min % |
*Properties above are for material in the T6 condition
Table 2 (j). Mechanical properties for aluminium alloy 6082 T6
BS EN 755-2:2008
Open & Hollow Profile
5mm to 25mm Wall Thickness |
Property |
Value |
Proof Stress |
260 Min MPa |
Tensile Strength |
310 Min MPa |
Elongation A50 mm |
8 Min % |
Hardness Brinell |
95 HB |
Elongation A |
10 Min % |
*Properties above are for material in the T6 condition
Table 2 (k). Mechanical properties for aluminium alloy 6082 T6 / T651
BS EN 485-2:2008
Plate
6.00m to 12.5mm |
Property |
Value |
Proof Stress |
255 Min MPa |
Tensile Strength |
300 Min MPa |
Elongation A50 mm |
9 Min % |
Hardness Brinell |
91 HB |
*Properties above are for material in the T6 and T651 condition
Table 2 (l). Mechanical properties for aluminium alloy 6082 T6 / T651
BS EN 485-2:2008
Plate
12.5mm to 100.00mm |
Property |
Value |
Proof Stress |
240 Min MPa |
Tensile Strength |
295 Min MPa |
Hardness Brinell |
89 HB |
*Properties above are for material in the T6 and T651 condition
Table 2 (m). Mechanical properties for aluminium alloy 6082 T6 / T651
BS EN 485-2:2008
Plate
100.00mm to 150.00mm |
Property |
Value |
Proof Stress |
240 Min MPa |
Tensile Strength |
275 Min MPa |
Hardness Brinell |
84 HB |
Elongation A |
6 Min % |
*Properties above are for material in the T6 and T651 condition
Table 2 (n). Mechanical properties for aluminium alloy T6 / T651 (rolled products)
BS EN 485-2:2008
Sheet
0.4mm to 6.00mm |
Property |
Value |
Proof Stress |
260 Min MPa |
Tensile Strength |
310 Min MPa |
Hardness Brinell |
94 HB |
*Properties above are for material in the T6 condition and, for rolled products, the T651 condition
Physical Properties of Aluminium alloy 6082
Table 3. Physical properties for aluminium alloy 6082
Property |
Value |
Density |
2700 kg/m3 |
Melting Point |
555°C |
Modulus of Elasticity |
70 GPa |
Electrical Resistivity |
0.38 x 10-6 Ω.m |
Thermal Conductivity |
180 W/m.K |
Thermal Expansion |
24 x 10-6/K |
Alloy Designations
Aluminium alloy 6082 also corresponds to the following standard designations and specifications:
- AA6082
- HE30
- DIN 3.2315
- EN AW-6082
- ISO: Al Si1MgMn
- A96082
Fabrication of Aluminium alloy 6082
Welding
Aluminium alloy 6082 has very good weldability but strength is lowered in the weld zone. When welded to itself, alloy 4043 wire is recommended. If welding Aluminium alloy 6082 to 7005, then the wire used should be alloy 5356.
Fabrication Response
Table 4. Fabrication response for aluminium alloy 6082
Process |
Rating |
Workability - Cold |
Good |
Machinability |
Good |
Weldability – Gas |
Good |
Weldability – Arc |
Good |
Weldability – Resistance |
Good |
Brazability |
Good |
Solderability |
Good |
Temper
The most common tempers for Aluminium alloy 6082 are:
- O – annealed wrought alloy
- T4 – Solution heat treated and naturally aged
- T6 – Solution heat treated and artificially aged
- T651 - Solution heat treated, stress relieved by stretching and then artificially aged
Applications of Aluminium alloy 6082
Aluminium alloy 6082 is used in:
- High stress applications
- Trusses
- Bridges
- Cranes
- Transport applications
- Ore skips
- Beer barrels
- Milk churns
Supplied Forms
Aluminium alloy 6082 is available from Aalco in the following forms with a T6 temper:
- Square bar
- Square box section
- Rectangular box section
- Channel
- Tee section
- Equal angle
- Unequal angle
- Flat bar
- Tube
- Sheet
Aalco also supply Aluminium alloy 6082-T651 as:
- Plate
- Shate
- Sheet
- Bar
- Tube
- Extrusions
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.