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BS EN 573-3 Grade 6061 T6

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Description

Aluminium alloy 6061 is a medium to high strength heat-treatable alloy with a strength higher than 6005A. It has very good corrosion resistance and very good weldability although reduced strength in the weld zone. It has medium fatigue strength. It has good cold formability in the temper T4, but limited formability in T6 temper. Not suitable for very complex cross sections.

Equivalent Materials

Ashby charts

See where BS EN 573-3 Grade 6061 T6 falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

Properties

General

Density

ρ

2.7 g/cm³ at 20 °C

Dimension

Dimensions

Wanddicke

Mechanical

Compressive modulus

Ecomp

69.7 MPa at 20 °C

Elastic modulus

E

69 - 70 GPa at 20 °C

Elongation

A

22 % at -195 °C

Elongation in 50 mm

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Elongation A100

A100

4 - 15 % at 20 °C

Elongation A50

A50

4 - 12 % at 20 °C

Hardness, Brinell

HB

95 [-] at 20 °C

500 kg load, 10 mm ball

Plane-Strain Fracture Toughnes

KIC

22 - 35 MPa·√m at 20 °C

Typical for Wrought 6000 Series Aluminium

Poisson's ratio

ν

0.33 [-] at 20 °C

Typical for Wrought 6000 Series Aluminium

Shear modulus

G

26 - 26.5 GPa at 20 °C

Typical for Wrought 6000 Series Aluminium

Shear strength

τ

207 MPa at 20 °C

Tensile strength

Rm

415 MPa at -195 °C

up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

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Yield strength

YS

270 MPa at 20 °C

Yield strength Rp0.2

Rp0.2

324 MPa at -196 °C

up to 10000 h at temperature, at 35 MPa/min to yield strength and then at strain rate of 5%/min to fracture

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Thermal

Coefficient of thermal expansion

α

2.36E-5 - 2.4E-5 1/K at 20 °C

derived value between 20°C and the mentioned temperature

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Melting point

Tm

580 - 650 °C

Specific heat capacity

cp

900 J/(kg·K) at 20 °C

derived value for 23-100°C

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Thermal conductivity

λ

155 - 180 W/(m·K) at 20 °C

derived value

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Electrical

Electrical conductivity

σel

2.30E+7 - 2.49E+8 S/m at 20 °C

Typical/derived value

Electrical resistivity

ρel

3.7E-8 - 4.35E-8 Ω·m at 20 °C

Typical value

Specific Electrical conductivity

43 % IACS

Typical value

Chemical properties

Element

Weight %

Comment

Al

95.9 - 98.6 %

Balance

Mg

0.8 - 1.2 %

Si

0.4 - 0.8 %

Cu

0.15 - 0.4 %

Cr

0.04 - 0.35 %

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Technological properties

Application areas

Heavy duty structures (Rail coaches, Truck frames, Ship building, Bridges and Military bridges, Aerospace applications including helicopter rotor), Skins (Tube, Pylons and Towers, Transport, Boilermaking, Motorboats, Rivets).

Brazing

Good

Corrosion properties

Stress corrosion cracking: no damage during operation and laboratory tests (O, T6, T651, T652, T6510, T6511), no damage during operation, limited damage during laboratory tests (T4, T451, T4510, T4511), general: good, without protection in industrial or seawater atmosphere

General machinability

Acceptable

Soldering general

Good

Welding

Gas: Good; Arc: Very Good; Resistance: Good

Workability

Cold: Good

This material data has been provided by Righton Blackburns,MakeItFrom.com,ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials,WroughtAl_ElectricalResistivity,WroughtAl_Thermal,AluKey.

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.