AA Standards Grade 6082 T4

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Description

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.

Related Standards

Equivalent Materials

This material data has been provided by AluKey,MakeItFrom.com,WroughtAl_Thermal,Righton Blackburns.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

2.7 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

70 - 72 GPa

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Elongation

23.0 °C

14 - 15 %

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Elongation A50

23.0 °C

12 %

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Hardness, Brinell

23.0 °C

70 [-]

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Plane-Strain Fracture Toughnes

23.0 °C

22 - 35 MPa·√m

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Typical for Wrought 6000 Series Aluminium

Poisson's ratio

23.0 °C

0.33 [-]

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Typical for Wrought 6000 Series Aluminium

Shear modulus

23.0 °C

26 - 26.5 GPa

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Typical for Wrought 6000 Series Aluminium

Tensile strength

23.0 °C

205 - 240 MPa

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Yield strength

23.0 °C

130 MPa

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Yield strength Rp0.2

23.0 °C

110 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

2.3E-5 - 2.4E-5 1/K

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unstated value for 20-100°C

100.0 °C

2.2E-5 1/K

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unstated value for 20-100°C

Melting point

555 - 580 °C

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Specific heat capacity

23.0 °C

890 J/(kg·K)

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Thermal conductivity

23.0 °C

170 - 180 W/(m·K)

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Electrical

PropertyTemperatureValueComment

Electrical conductivity

23.0 °C

2.10E+7 - 3.40E+7 S/m

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Typical for Wrought 6000 Series Aluminium

Electrical resistivity

23.0 °C

3.8E-8 Ω·m

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Chemical properties

PropertyValueComment

Aluminium

95.2 - 98.3 %

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Balance

Chromium

0 - 0.25 %

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Copper

0 - 0.1 %

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Iron

0 - 0.5 %

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Magnesium

0.6 - 1.2 %

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Manganese

0.4 - 1 %

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Other

0 - 0.15 %

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each 0.05, total 0.15, Rest Al,Total

Silicon

0.7 - 1.3 %

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Titanium

0 - 0.1 %

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Zinc

0 - 0.2 %

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Technological properties

Property
Application areas

Highly stressed applications, Trusses, Bridges, Cranes, Transport applications, Ore skips, Beer barrels, Milk churns

Brazing

Good

General machinability

Good

Soldering general

Good

Welding

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. Gas: Good; Arc: Good; Resistance: Good

Workability

Cold: Good