Data Sheets

Aluminium Alloy   |   Commercial Alloy

6082 - T6 Extrusions

Commercial6082 EN6082

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, 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, alloy 6082 machines well and produces tight coils of swarf when chip breakers are used.

Applications
6082 is typically used in:
~ Highly stressed applications
~ Trusses
~ Bridges
~ Cranes
~ Transport applications
~ Ore skips
~ Beer barrels
~ Milk churns


Chemical Composition

BS EN 573-3:2009
Alloy 6082
Chemical Element % Present
Aluminium (Al) balance
Other (Each) 0.05 max
Copper (Cu) 0.1 max
Titanium (Ti) 0.1 max
Others (Total) 0.15 max
Zinc (Zn) 0.2 max
Chromium (Cr) 0.25 max
Iron (Fe) 0.5 max
Manganese (Mn) 0.4 - 1
Magnesium (Mg) 0.6 - 1.2
Silicon (Si) 0.7 - 1.3

Alloy Designations

Aluminium alloy 6082 also corresponds to the following standard designations and specifications but may not be a direct equivalent:

AA6082

HE30

DIN 3.2315

EN AW-6082

ISO: Al Si1MgMn

A96082


Temper Types

The most common tempers for 6082 aluminium are:

  • T6
  • O
  • T4
  • T651

Supplied Forms

Alloy 6082 is typically supplied as Channel, Angle, Tee, Square bar, Square box section, Rectangular box section, Flat bar and Tube.

  • Extrusions
  • Bar
  • Tube

Generic Physical Properties

Physical Property Value
Density 2.70 g/cm³
Melting Point 555 °C
Thermal Expansion 24 x10^-6 /K
Modulus of Elasticity 70 GPa
Thermal Conductivity 180 W/m.K
Electrical Resistivity 0.038 x10^-6 Ω .m

Mechanical Properties

BS EN 755-2:2008
Rod & Bar - Up to 20mm Dia. & A/F
Mechanical 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 %
BS EN 755-2:2008
Rod & Bar - 20mm to 150mm Dia. & A/F
Mechanical Property Value
Proof Stress 260 Min MPa
Tensile Strength 310 Min MPa
Hardness Brinell 95 HB
Elongation A 8 Min %
BS EN 755-2:2008
Bar - 150mm to 200mm Dia. & A/F
Mechanical Property Value
Proof Stress 240 Min MPa
Tensile Strength 280 Min MPa
Hardness Brinell 95 HB
Elongation A 6 Min %
BS EN 755-2:2008
Bar - 200mm to 250mm Dia. & A/F
Mechanical Property Value
Proof Stress 200 Min MPa
Tensile Strength 270 Min MPa
Hardness Brinell 95 HB
Elongation A 6 Min %
BS EN 755-2:2008
Tube - Up to 5mm Wall Thickness
Mechanical 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 %
BS EN 755-2:2008
Tube - 5mm to 25mm Wall Thickness
Mechanical 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 %
BS EN 755-2:2008
Open & Hollow Profile - Up To 5mm Wall Thickness
Mechanical 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 %
BS EN 755-2:2008
Open & Hollow Profile - 5mm to 25mm Wall Thickness
Mechanical 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


Weldability

6082 has very good weldability but strength is lowered in the weld zone. When welded to itself, alloy 4043 wire is recommended. If welding 6082 to 7005, then the wire used should be alloy 5356.

 

Weldability – Gas: Good

Weldability – Arc: Good

Weldability – Resistance: Good

Brazability: Good

Solderability: Good

Fabrication

Workability - Cold: Good

Machinability: Good