BS EN 573-3 Grade 6063 O

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Description

Aluminium alloy 6063 is a medium strength alloy commonly referred to as an architectural alloy. It is normally used in intricate extrusions. It has a good surface finish, high corrosion resistance, is readily suited to welding and can be easily anodised. Most commonly available as T6 temper, in the T4 condition it has good formability. Aluminium alloy 6063A is a variation of 6063 with greater strength but retains the same good surface finish qualities and affinity for anodising. Applications

Related Standards

Equivalent Materials

Ashby charts

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Properties

General

Density

ρ

2.7 g/cm³ at 23 °C

Dimension

Dimensions

Wanddicke

Mechanical

Bending Fatigue Strength

SNf

55 MPa at 23 °C

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Compressive modulus

Ecomp

69.7 MPa at 23 °C

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Elastic modulus

E

69 - 69.5 GPa at 23 °C

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Elongation

A

18 - 22 % at 23 °C

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Elongation A100

A100

16 % at 23 °C

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Elongation A50

A50

16 - 18 % at 23 °C

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Fatigue strength

SNf

55 MPa at 23 °C

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fo 5x10⁸ cycles

Hardness, Brinell

HB

25 [-] at 23 °C

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500 kg load, 10 mm ball

Plane-Strain Fracture Toughnes

KIC

22 - 35 MPa·√m at 23 °C

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Typical for Wrought 6000 Series Aluminium

Poisson's ratio

ν

0.33 [-] at 23 °C

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Typical for Wrought 6000 Series Aluminium

Shear modulus

G

26 - 26.5 GPa at 23 °C

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Typical for Wrought 6000 Series Aluminium

Shear strength

τ

69 MPa at 23 °C

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Tensile strength

Rm

90 - 130 MPa at 23 °C

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Yield strength

YS

49 MPa at 23 °C

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Yield strength Rp0.2

Rp0.2

50 MPa at 23 °C

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Thermal

Coefficient of thermal expansion

α

2.34E-5 1/K at 20 °C

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Melting point

Tm

600 - 655 °C

Specific heat capacity

cp

900 J/(kg·K) at 23 °C

Thermal conductivity

λ

193 - 218 W/(m·K) at 23 °C

unstated value

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Electrical

Electrical conductivity

σel

2.90E+7 - 3.40E+7 S/m at 23 °C

Typical value

Electrical resistivity

ρel

2.9E-8 - 3.5E-8 Ω·m at 23 °C

Typical value

Specific Electrical conductivity

59 % IACS

Typical/Derived value

Chemical properties

Element

Weight %

Comment

Al

97.5 - 99.4 %

Balance

Mg

0.45 - 0.9 %

Si

0.2 - 0.6 %

Cr

0 - 0.1 %

Cu

0 - 0.1 %

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Technological properties

Application areas

- 6063 Architectural, applications, Extrusions, Window frames, Doors, Shop fittings, Irrigation tubing, In balustrading the rails and posts are normally in the T6 temper and formed elbows and bends are T4. T4 temper 6063 aluminium is also finding applications in hydroformed tube for chassis. - 6063A 6063A is used in the same applications as 6063. It is also used in: Road transport Rail transport Extreme sports equipment

Brazing

Excellent

Corrosion properties

Stress corrosion cracking: no damage during operation and laboratory tests, general: very good, without protection in industrial or seawater atmosphere

General machinability

Average

Soldering general

Good

Welding

6063 is suitable for all conventional welding methods. Welding wire generally should be alloy 5183 or alloy 4043. When maximum electrical conductivity is required use alloy 4043. For strength and conductivity use alloy 5346 and increase the size of the weld to compensate for the lower conductivity. Gas: Excellent; Arc:Excellent; Resistance:Excellent. 

Workability

Cold: Average

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