AA 7178 T6510 - Premium 7000 Series Aluminum Alloy for Superior Strength

AA 7178, comprised of copper and magnesium as its primary alloying elements, offers uncompromising strength and accommodates a number of different metalworking processes. These processes include machining, welding, and heat treating.

Properties

General

Property	Value	Comment
Density	2.7 - 2.85 g/cm³	Typical for Wrought 7000 Series Aluminium

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	69.0 - 72.0 GPa			Typical for Wrought 7000 Series Aluminium
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 7000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 7000 Series Aluminium
Shear modulus	26.4 - 27.1 GPa			Typical for Wrought 7000 Series Aluminium
Tensile strength	565.0 MPa	T6510	AA Standards, ASTM B221, ASTM B241
	580.0 MPa	T6510	AA Standards, ASTM B221, ASTM B241
	595.0 MPa	T6510	AA Standards, ASTM B221
	600.0 MPa	T6510	AA Standards, ASTM B221, ASTM B241

Thermal

Property	Value	Comment
Coefficient of thermal expansion	2.1e-05 - 2.4e-05 1/K	Typical for Wrought 7000 Series Aluminium
Melting point	465.0 - 655.0 °C	Typical for Wrought 7000 Series Aluminium
Specific heat capacity	795.0 - 1050.0 J/(kg·K)	Typical for Wrought 7000 Series Aluminium
Thermal conductivity	121.0 - 170.0 W/(m·K)	Typical for Wrought 7000 Series Aluminium

Electrical

Property	Value	Comment
Electrical conductivity	18000000.0 - 34000000.0 S/m	Typical for Wrought 7000 Series Aluminium
Electrical resistivity	2.9e-08 - 5.6e-08 Ω·m	Typical for Wrought 7000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.18 - 0.28 %	T6510	AA Standards, ASTM B221, ASTM B241
Copper	1.6 - 2.4 %	T6510	AA Standards, ASTM B221, ASTM B241
Iron	0.50 %	T6510	AA Standards, ASTM B221, ASTM B241
Magnesium	2.4 - 3.1 %	T6510	AA Standards, ASTM B221, ASTM B241
Manganese	0.3 %	T6510	AA Standards, ASTM B221, ASTM B241
Silicon	0.4 %	T6510	AA Standards, ASTM B221, ASTM B241
Titanium	0.2 %	T6510	AA Standards, ASTM B221, ASTM B241
Zinc	6.3 - 7.3 %	T6510	AA Standards, ASTM B221, ASTM B241

Technological properties

Property
Brazing	general: no brazing is known or developed
Corrosion properties	Stress corrosion cracking: Operational damage in areas with tensile stresses transverse to the grain structure, limited damage to laboratory samples, general: good, without protection in industrial or seawater atmosphere
General machinability	General: good to acceptable
Workability	general (condition): not suitable

AA 7178 T651 Aluminium Alloy – Superior Strength & Versatile Machining, Welding, Heat Treating AA 7178 T6511: High-Strength 7000-Series Aluminum Alloy for Advanced Metalworking

Metal