Aluminium 6082
Scope
Aluminium 6082 is a medium strength alloy with excellent corrosion resistance. It has the highest strength of 6000 series alloys. Alloy 6082 is known as a structural alloy. In plate form, 6082 is the alloy most commonly used for machining. As a relatively new alloy, the higher strength of 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. It is difficult to produce thin walled, complicated extrusion shapes in alloy 6082. The extruded surface finish is not as smooth as other similar strength alloys in the 6000 series. In the T6 and T651 temper, 6082 machines well and produces tight coils of swarf when chip breakers are used.
Application
This material is used for milk churns, trusses, cranes, ore skips, beer barrels, bridges, highly stressed applications and transport applications.
Structural applications
Aluminium 6082 is often referred to as a structural alloy and is used predominantly in highly stressed applications such as cranes, bridges and trusses.
Besides having excellent strength qualities, aluminium 6082 also has excellent corrosion resistance and has replaced 6061 aluminium in many applications. The extruded finish of this alloy is not as smooth or as aesthetically pleasing as other alloys in the 6000 series.
Machinability
6082 aluminium has good machinability with excellent corrosion resistance. It’s machinability in addition to strength and improved corrosion resistance makes it a preferred option for structural applications.
Typical applications
Typical applications of aluminium 6082 include the following:
Ore skips
Cranes
Milk chums
Bridges
Roof trusses
Highly stressed components
We can supply aluminium 6082 in various forms including round bar, plate, sheet, round tube, flats, rectangular tube, square tube, hollow bar, square bar, channels, tee sections and hexagon bar.
Supplied Forms
Sheet
Plate
Extrusion
Tube
Bar
Alloy Designations
Aluminium alloy 6082 also corresponds to: AA6082, HE30, DIN 3.2315, EN AW-6082, ISO: Al Si1MgMn and A96082.
Temper Types
The most common tempers for 6082 aluminium are:
6082 O
Un-heat treated / Soft
6082 T4
Solution heat treated and naturally aged to a substantially stable condition
6082 T6
Solution heat treated and artificially aged
6082 T651
Solution heat treated, stress relieved by stretching then artificially aged.
Fabrication
Solderability: Good
Weldability - Gas: Good
Weldability - Arc: Good
Weldability - Resistance: Good
Brazability: Good
Workability - Cold: Good
Machinability: Good
Welding
6082 has very good weldability but strength is lowered in the weld zone. When welded it itself alloy 4043 wire is recommended. If welding 6082 to 7005, then the wire used should be alloy 5356.
Chemical Compositions
| Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 - 1.00 |
| Iron (Fe) | 0.00 - 0.50 |
| Magnesium (Mg) | 0.60 - 1.20 |
| Silicon (Si) | 0.70 - 1.30 |
| Copper (Cu) | 0.00 - 0.10 |
| Zinc (Zn) | 0.00 - 0.20 |
| Titanium (Ti) | 0.00 - 0.10 |
| Chromium (Cr) | 0.00 - 0.25 |
| Aluminium (Al) | Balance |
Chemical Compositions
| Element | % Present |
|---|---|
| Manganese (Mn) | 0.40 - 1.00 |
| Iron (Fe) | 0.00 - 0.50 |
| Magnesium (Mg) | 0.60 - 1.20 |
| Silicon (Si) | 0.70 - 1.30 |
| Copper (Cu) | 0.00 - 0.10 |
| Zinc (Zn) | 0.00 - 0.20 |
| Titanium (Ti) | 0.00 - 0.10 |
| Chromium (Cr) | 0.00 - 0.25 |
| Aluminium (Al) | Balance |
Mechanical properties at room temperature
| Property | Value |
|---|---|
| Proof Stress | 310 MPa |
| Tensile Strength | 340 MPa |
| Elongation | 11% |
| Shear Strength | 210 MPa |
| Hardness Vickers | 100 HV |
Mechanical properties at room temperature
| Property | Value |
|---|---|
| Proof Stress | 310 MPa |
| Tensile Strength | 340 MPa |
| Elongation | 11% |
| Shear Strength | 210 MPa |
| Hardness Vickers | 100 HV |
Reference data for some physical properties (for guidance only)
| Property | Value |
|---|---|
| Density | 2.70 Kg/m3 |
| Melting Point | 555 °C |
| Thermal Expansion | 24 x 10-6 /K |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 180W/m.K |
| Electrical Resistivity | 0.038 x 10-6 Ω .m |
Reference data for some physical properties (for guidance only)
| Property | Value |
|---|---|
| Density | 2.70 Kg/m3 |
| Melting Point | 555 °C |
| Thermal Expansion | 24 x 10-6 /K |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 180W/m.K |
| Electrical Resistivity | 0.038 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.