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AA Standards Grade 6066 T651 Aluminium – Key Mechanical Properties & Specifications

Properties

General

Property	Value	Condition	Related Standards
Density	2.72 g/cm³	T651	AA Standards

Mechanical

Property	Value	Condition	Related Standards	Comment
Bending Fatigue Strength	110.0 MPa	T651	AA Standards
Elastic modulus	69.0 GPa	T651	AA Standards
Hardness, Brinell	120.0 [-]	T651	AA Standards
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 6000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 6000 Series Aluminium
Shear modulus	26.0 - 26.5 GPa			Typical for Wrought 6000 Series Aluminium
Tensile strength	395.0 MPa	T651	AA Standards

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.3199999999999998e-05 1/K	T651	AA Standards
	100 °C	2.3199999999999998e-05 1/K	T651	AA Standards
Melting point		560.0 - 645.0 °C	T651	AA Standards
Specific heat capacity		887.0 - 963.0 J/(kg·K)			Typical for Wrought 6000 Series Aluminium
Thermal conductivity		146.0 - 155.0 W/(m·K)	T651	AA Standards

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	21000000.0 - 23000000.0 S/m	T651	AA Standards
Electrical resistivity	4.35e-08 - 4.76e-08 Ω·m	T651	AA Standards

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.4 %	T651	AA Standards
Copper	0.7 - 1.2 %	T651	AA Standards
Iron	0.50 %	T651	AA Standards
Magnesium	0.8 - 1.4 %	T651	AA Standards
Manganese	0.6 - 1.1 %	T651	AA Standards
Silicon	0.9 - 1.8 %	T651	AA Standards
Titanium	0.2 %	T651	AA Standards
Zinc	0.25 %	T651	AA Standards

Technological properties

Property
Brazing	general: no brazing is known or developed
Corrosion properties	Stress corrosion cracking: no damage during operation and laboratory tests (O), no damage during operation, limited damage during laboratory tests, general: good, without protection in industrial or seawater atmosphere
General machinability	General: poor (O), sufficient (T4, T4510, T4511), good to acceptable (T6, T6510, T6511)
Workability	general (condition): acceptable (O), poor(T4, T4510, T4511, T6, T6510, T6511)

AA Standards Grade 6066 T4: Comprehensive Material Properties Overview AA Standards Grade 7049 T73 – Comprehensive Mechanical & Physical Properties

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