EN 573-3 Grade 3.3545 H112: 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	H112	EN 573-3, EN 485, EN 755

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	71.0 GPa	H112	EN 573-3, EN 485, EN 755
Hardness, Brinell	65.0 [-]	H112	EN 573-3, EN 485
	69.0 [-]	H112	EN 573-3, EN 485
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	H112	EN 573-3, EN 485, EN 755
Tensile strength	240.0 MPa	H112	EN 573-3, EN 485, EN 755
	250.0 MPa	H112	EN 573-3, EN 485

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	-50 °C	2.2e-05 1/K	H112	EN 573-3, EN 485, EN 755
	20 °C	2.2e-05 1/K	H112	EN 573-3, EN 485, EN 755
	20 °C	2.38e-05 1/K	H112	EN 573-3, EN 485, EN 755
	20 °C	2.4699999999999997e-05 1/K	H112	EN 573-3, EN 485, EN 755
	20 °C	2.58e-05 1/K	H112	EN 573-3, EN 485, EN 755
	100 °C	2.38e-05 1/K	H112	EN 573-3, EN 485, EN 755
	200 °C	2.4699999999999997e-05 1/K	H112	EN 573-3, EN 485, EN 755
	300 °C	2.58e-05 1/K	H112	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	H112	EN 573-3, EN 485, EN 755
		585.0 - 640.0 °C	H112	EN 573-3, EN 485, EN 755
Specific heat capacity		900.0 J/(kg·K)	H112	EN 573-3, EN 485, EN 755
Thermal conductivity		120.0 - 140.0 W/(m·K)	H112	EN 573-3, EN 485, EN 755
		126 W/(m·K)	H112	EN 573-3, EN 485, EN 755

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	17000000.0 - 19000000.0 S/m	H112	EN 573-3, EN 485, EN 755
	18000000.0 S/m	H112	EN 573-3, EN 485, EN 755
Electrical resistivity	5.26e-08 - 5.88e-08 Ω·m	H112	EN 573-3, EN 485, EN 755
	5.56e-08 Ω·m	H112	EN 573-3, EN 485, EN 755

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.05 - 0.25 %	H112	EN 573-3, EN 485, EN 755
Copper	0.1 %	H112	EN 573-3, EN 485, EN 755
Iron	0.50 %	H112	EN 573-3, EN 485, EN 755
Magnesium	3.5 - 4.5 %	H112	EN 573-3, EN 485, EN 755
Manganese	0.2 - 0.7 %	H112	EN 573-3, EN 485, EN 755
Silicon	0.4 %	H112	EN 573-3, EN 485, EN 755
Titanium	0.15 %	H112	EN 573-3, EN 485, EN 755
Zinc	0.25 %	H112	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 1725-2 Grade 3.3541 F – G‑AlMg3: High‑Performance, Corrosion‑Resistant Aluminum Alloy for Marine & Industrial Applications EN 573-3 Grade 3.3545 H114: High-Strength, Corrosion-Resistant Aluminum Alloy

Metal