AA Standards 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

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

Bending Fatigue Strength

23.0 °C

55 MPa

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Compressive modulus

23.0 °C

69.7 MPa

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Elastic modulus

23.0 °C

69 - 69.5 GPa

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Elongation

23.0 °C

18 - 22 %

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Elongation A100

23.0 °C

16 %

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Elongation A50

23.0 °C

16 - 18 %

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Fatigue strength

23.0 °C

55 MPa

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fo 5x10⁸ cycles

Hardness, Brinell

23.0 °C

25 [-]

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500 kg load, 10 mm ball

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

Shear strength

23.0 °C

69 MPa

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Tensile strength

23.0 °C

90 - 130 MPa

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Yield strength

23.0 °C

49 MPa

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Yield strength Rp0.2

23.0 °C

50 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

2.34E-5 1/K

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23.0 °C

2.3E-5 - 2.35E-5 1/K

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100.0 °C

2.34E-5 1/K

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Melting point

600 - 655 °C

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Specific heat capacity

23.0 °C

900 J/(kg·K)

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Thermal conductivity

23.0 °C

193 - 218 W/(m·K)

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unstated value

25.0 °C

218 W/(m·K)

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unstated value

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Electrical

PropertyTemperatureValueComment

Electrical conductivity

23.0 °C

2.90E+7 - 3.40E+7 S/m

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Typical value

Electrical resistivity

23.0 °C

2.9E-8 - 3.5E-8 Ω·m

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Typical value

Specific Electrical conductivity

59 % IACS

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Typical/Derived value

Chemical properties

PropertyValueComment

Aluminium

97.5 - 99.4 %

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Balance

Chromium

0 - 0.1 %

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Copper

0 - 0.1 %

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Iron

0 - 0.35 %

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Magnesium

0.45 - 0.9 %

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Manganese

0 - 0.1 %

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Other

0 - 0.15 %

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each 0.05, total 0.15, Rest Al,Total

Silicon

0.2 - 0.6 %

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Titanium

0 - 0.1 %

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Zinc

0 - 0.1 %

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Technological properties

Property
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

general: possible with commercial processes and methods

Corrosion properties

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

General machinability

General: poor (T1, T4), sufficient (T5, T452, T6, T83, T831, T832)

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

general (condition): acceptable (T1, T4, T5, T452), poor(T6, T83, T831, T832)