AA 5657 Aluminum Alloy – Superior Corrosion Resistance & Versatile Fabrication

AA 5657 is a non-heat treatable alloy that offers users workability and medium strength. Due to the addition of magnesium to the alloy, AA 5657 has enhanced corrosion resistance. AA 5657 can be welded with most convention methods including resistance welding, arc, and gas torch. This alloy can be both hot and cold formed as well as brazed, however it only offers fair machinability and getting the perfect finish takes extra work.

Properties

General

Property	Value	Condition	Related Standards
Density	2.69 g/cm³	H28	AA Standards, ASTM B209

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	69.0 GPa	H28	AA Standards, ASTM B209
Hardness, Brinell	50.0 [-]	H28	AA Standards
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 5000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 5000 Series Aluminium
Shear modulus	26.0 - 26.5 GPa			Typical for Wrought 5000 Series Aluminium
Tensile strength	170.0 MPa	H28	AA Standards, ASTM B209
	195.0 MPa	H28	AA Standards

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.38e-05 1/K	H28	AA Standards, ASTM B209
	100 °C	2.38e-05 1/K	H28	AA Standards, ASTM B209
Max service temperature		150.0 °C			Typical for Wrought 5000 Series Aluminium
Melting point		635.0 - 655.0 °C	H28	AA Standards, ASTM B209
Specific heat capacity		879.0 - 963.0 J/(kg·K)			Typical for Wrought 5000 Series Aluminium
Thermal conductivity		205 W/(m·K)	H28	AA Standards, ASTM B209

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	31000000.0 S/m	H28	AA Standards, ASTM B209
Electrical resistivity	3.23e-08 Ω·m	H28	AA Standards, ASTM B209

Chemical properties

Property	Value	Condition	Related Standards
Copper	0.1 %	H28	AA Standards, ASTM B209
Gallium	0.03 %	H28	AA Standards, ASTM B209
Iron	0.10 %	H28	AA Standards, ASTM B209
Magnesium	0.6 - 1.0 %	H28	AA Standards, ASTM B209
Manganese	0.03 %	H28	AA Standards, ASTM B209
Silicon	0.08 %	H28	AA Standards, ASTM B209
Vanadium	0.05 %	H28	AA Standards, ASTM B209
Zinc	0.05 %	H28	AA Standards, ASTM B209

Technological properties

Property
Brazing	general: Lötbar mit speziellen Techniken oder bei bestimmten Anwendungen
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 (H241, H25, H26, H28)
Workability	general (condition): good (H241), acceptable (H25, H26), poor(H28)

AA 5657 H24 Aluminum Alloy: High Corrosion Resistance & Versatile Fabrication AA 5657 H38: A Magnesium-Enhanced, Non-Heat-Treatable Aluminum Alloy with Medium Strength and Corrosion Resistance

Metal