EN 573-3 Grade 3.3545 H244 – High‑Strength, Corrosion‑Resistant Aluminum Alloy

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	H244	EN 573-3, EN 1386

Mechanical

Property	Value	Condition	Related Standards	Comment
Bending angle 90°	4.0 °/t	H244	EN 573-3, EN 1386
	4.5 °/t	H244	EN 573-3, EN 1386
	5.5 °/t	H244	EN 573-3, EN 1386
Elastic modulus	71.0 GPa	H244	EN 573-3, EN 1386
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	H244	EN 573-3, EN 1386
Tensile strength	300.0 - 360.0 MPa	H244	EN 573-3, EN 1386

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	-50 °C	2.2e-05 1/K	H244	EN 573-3, EN 1386
	20 °C	2.2e-05 1/K	H244	EN 573-3, EN 1386
	20 °C	2.38e-05 1/K	H244	EN 573-3, EN 1386
	20 °C	2.4699999999999997e-05 1/K	H244	EN 573-3, EN 1386
	20 °C	2.58e-05 1/K	H244	EN 573-3, EN 1386
	100 °C	2.38e-05 1/K	H244	EN 573-3, EN 1386
	200 °C	2.4699999999999997e-05 1/K	H244	EN 573-3, EN 1386
	300 °C	2.58e-05 1/K	H244	EN 573-3, EN 1386
Max service temperature		150.0 °C			Typical for Wrought 5000 Series Aluminium
Melting point		585.0 - 641.0 °C	H244	EN 573-3, EN 1386
		585.0 - 640.0 °C	H244	EN 573-3, EN 1386
Specific heat capacity		900.0 J/(kg·K)	H244	EN 573-3, EN 1386
Thermal conductivity		120.0 - 140.0 W/(m·K)	H244	EN 573-3, EN 1386
		126 W/(m·K)	H244	EN 573-3, EN 1386

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	17000000.0 - 19000000.0 S/m	H244	EN 573-3, EN 1386
	18000000.0 S/m	H244	EN 573-3, EN 1386
Electrical resistivity	5.26e-08 - 5.88e-08 Ω·m	H244	EN 573-3, EN 1386
	5.56e-08 Ω·m	H244	EN 573-3, EN 1386

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.05 - 0.25 %	H244	EN 573-3, EN 1386
Copper	0.1 %	H244	EN 573-3, EN 1386
Iron	0.50 %	H244	EN 573-3, EN 1386
Magnesium	3.5 - 4.5 %	H244	EN 573-3, EN 1386
Manganese	0.2 - 0.7 %	H244	EN 573-3, EN 1386
Silicon	0.4 %	H244	EN 573-3, EN 1386
Titanium	0.15 %	H244	EN 573-3, EN 1386
Zinc	0.25 %	H244	EN 573-3, EN 1386

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)

Aluminum DIN 3.3545 H224: Premium Corrosion‑Resistant Structural Alloy EN 573-3 Grade 3.1655 T6 – High-Performance, Free-Machining Aluminum Alloy

Metal