AA 6061-O: Versatile Aluminum Alloy for Fabrication & Corrosion Resistance

AA 6061 is a readily available alloy that has good surface finish and ability to be anodized.Easy of weldability and brazability with nice surface finish. Resistance to corrosion from seawater and atmospheric conditions. Suitable for hot forging.

Properties

General

Property	Value	Condition	Related Standards
Density	2.7 g/cm³	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483

Mechanical

Property	Value	Condition	Related Standards	Comment
Bending Fatigue Strength	60.0 MPa	O	AA Standards
Elastic modulus	69.0 GPa	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Hardness, Brinell	30.0 [-]	O	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	125.0 MPa	O	AA Standards
	150.0 MPa	O	AA Standards, ASTM B209, ASTM B210, ASTM B221, ASTM B241, ASTM B313, ASTM B345, ASTM B483
	155.0 MPa	O	AA Standards, ASTM B211, ASTM B316

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.36e-05 1/K	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
	100 °C	2.36e-05 1/K	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Melting point		580.0 - 650.0 °C	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Specific heat capacity		887.0 - 963.0 J/(kg·K)			Typical for Wrought 6000 Series Aluminium
Thermal conductivity		155.0 - 180.0 W/(m·K)	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	23000000.0 - 27000000.0 S/m	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Electrical resistivity	3.7e-08 - 4.35e-08 Ω·m	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.04 - 0.35 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Copper	0.15 - 0.4 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Iron	0.70 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Magnesium	0.8 - 1.2 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Manganese	0.15 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Silicon	0.4 - 0.8 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Titanium	0.15 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483
Zinc	0.25 %	O	AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B221, ASTM B241, ASTM B313, ASTM B316, ASTM B345, ASTM B483

Technological properties

Property
Brazing	general: possible with commercial processes and methods
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	General: poor (O), sufficient (T4, T451, T4510, T4511, T6, T651, T652, T6510, T6511)
Workability	general (condition): good (O), acceptable (T4, T451, T4510, T4511), poor(T6, T651, T652, T6510, T6511)

EN 573-3 Grade AW-6056 T78 Aluminum Alloy – High-Strength Age-Hardenable AlMgSi AW-6060 T64: High-Performance, Food-Safe Aluminum Alloy (EN 573-3 Grade)

Metal