EN 573-3 Grade 3.3545 F Aluminum Alloy: Superior Strength, Corrosion Resistance, and Electrical Conductivity

Aluminum DIN 3.3545 is structural alloy, which offers users strong corrosion resistance and high electrical conductivity. Offering higher strength levels than 5052 or 5083, DIN 3.3545 becomes stronger with stain hardening and cold working, all while remaining a cost-effective choice. It can be welded with conventional methods, though electric arc welding is preferred.

Properties

General

Property	Value	Condition	Related Standards
Density	2.66 g/cm³	F	EN 573-3, EN 485, EN 755

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	71.0 GPa	F	EN 573-3, EN 485, EN 755
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	26.7 GPa	F	EN 573-3, EN 485, EN 755
Tensile strength	240.0 MPa	F	EN 573-3, EN 485, EN 755

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	-50 °C	2.2e-05 1/K	F	EN 573-3, EN 485, EN 755
	20 °C	2.2e-05 1/K	F	EN 573-3, EN 485, EN 755
	20 °C	2.38e-05 1/K	F	EN 573-3, EN 485, EN 755
	20 °C	2.4699999999999997e-05 1/K	F	EN 573-3, EN 485, EN 755
	20 °C	2.58e-05 1/K	F	EN 573-3, EN 485, EN 755
	100 °C	2.38e-05 1/K	F	EN 573-3, EN 485, EN 755
	200 °C	2.4699999999999997e-05 1/K	F	EN 573-3, EN 485, EN 755
	300 °C	2.58e-05 1/K	F	EN 573-3, EN 485, EN 755
Max service temperature		150.0 °C			Typical for Wrought 5000 Series Aluminium
Melting point		585.0 - 641.0 °C	F	EN 573-3, EN 485, EN 755
		585.0 - 640.0 °C	F	EN 573-3, EN 485, EN 755
Specific heat capacity		900.0 J/(kg·K)	F	EN 573-3, EN 485, EN 755
Thermal conductivity		120.0 - 140.0 W/(m·K)	F	EN 573-3, EN 485, EN 755
		126 W/(m·K)	F	EN 573-3, EN 485, EN 755

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	17000000.0 - 19000000.0 S/m	F	EN 573-3, EN 485, EN 755
	18000000.0 S/m	F	EN 573-3, EN 485, EN 755
Electrical resistivity	5.26e-08 - 5.88e-08 Ω·m	F	EN 573-3, EN 485, EN 755
	5.56e-08 Ω·m	F	EN 573-3, EN 485, EN 755

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.05 - 0.25 %	F	EN 573-3, EN 485, EN 755
Copper	0.1 %	F	EN 573-3, EN 485, EN 755
Iron	0.50 %	F	EN 573-3, EN 485, EN 755
Magnesium	3.5 - 4.5 %	F	EN 573-3, EN 485, EN 755
Manganese	0.2 - 0.7 %	F	EN 573-3, EN 485, EN 755
Silicon	0.4 %	F	EN 573-3, EN 485, EN 755
Titanium	0.15 %	F	EN 573-3, EN 485, EN 755
Zinc	0.25 %	F	EN 573-3, EN 485, EN 755

Technological properties

Property
Anodizing	decorative: acceptable, Protective: very good
Brazing	hard brazing (with flux/ without flux): poor / sufficient, friction soldering: acceptable, soft brazing with flux: poor
Workability	Bending / Spinning (cold): good / sufficient, Impact extrusion (cold): sufficient, Deep drawing / upsetting (Condition) good (O) / good (O)

Property

Anodizing

decorative: acceptable, Protective: very good

Brazing

hard brazing (with flux/ without flux): poor / sufficient, friction soldering: acceptable, soft brazing with flux: poor

Workability

Bending / Spinning (cold): good / sufficient, Impact extrusion (cold): sufficient, Deep drawing / upsetting (Condition) good (O) / good (O)

DIN 1725-1 Grade 3.3527 T6 Aluminum Alloy – High Heat Resistance & Corrosion Protection DIN 1725-2 Grade 3.3561 F – Durable, Corrosion‑Resistant Stainless Steel

Metal