EN 573-3 Grade H13 (DIN 3.3211) – High‑Performance, Corrosion‑Resistant Steel for Industrial Applications

DIN 3.3211 is a readily available alloy that has good surface finish and ability to be anodized.Easy of weldability and brazability with nice surface finish. Resistance to corrosion from seawater and atmospheric conditions. Suitable for hot forging.

Properties

General

Property	Value	Condition	Related Standards
Density	2.7 g/cm³	H13	EN 573-3, EN 1301

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	69.0 GPa	H13	EN 573-3, EN 1301
	70.0 GPa	H13	EN 573-3, EN 1301
Elongation	4.0 %	H13	EN 573-3, EN 1301
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 6000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 6000 Series Aluminium
Shear modulus	26.3 GPa	H13	EN 573-3, EN 1301
Tensile strength	150.0 - 210.0 MPa	H13	EN 573-3, EN 1301

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.3e-05 1/K	H13	EN 573-3, EN 1301
	20 °C	2.36e-05 1/K	H13	EN 573-3, EN 1301
	100 °C	2.3e-05 1/K	H13	EN 573-3, EN 1301
	100 °C	2.36e-05 1/K	H13	EN 573-3, EN 1301
Melting point		580.0 - 640.0 °C	H13	EN 573-3, EN 1301
		580.0 - 650.0 °C	H13	EN 573-3, EN 1301
Specific heat capacity		887.0 - 963.0 J/(kg·K)			Typical for Wrought 6000 Series Aluminium
Thermal conductivity		155.0 - 180.0 W/(m·K)	H13	EN 573-3, EN 1301
		170.0 - 200.0 W/(m·K)	H13	EN 573-3, EN 1301

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	22000000.0 - 30000000.0 S/m	H13	EN 573-3, EN 1301
	23000000.0 - 27000000.0 S/m	H13	EN 573-3, EN 1301
Electrical resistivity	3.33e-08 - 4.55e-08 Ω·m	H13	EN 573-3, EN 1301
	3.7e-08 - 4.35e-08 Ω·m	H13	EN 573-3, EN 1301

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.04 - 0.35 %	H13	EN 573-3, EN 1301
Copper	0.15 - 0.4 %	H13	EN 573-3, EN 1301
Iron	0.70 %	H13	EN 573-3, EN 1301
Magnesium	0.8 - 1.2 %	H13	EN 573-3, EN 1301
Manganese	0.15 %	H13	EN 573-3, EN 1301
Silicon	0.4 - 0.8 %	H13	EN 573-3, EN 1301
Titanium	0.15 %	H13	EN 573-3, EN 1301
Zinc	0.25 %	H13	EN 573-3, EN 1301

Technological properties

Property
Anodizing	decorative: acceptable, Protective: very good
Brazing	hard brazing (with flux/ without flux): good / sufficient, friction soldering: good, soft brazing with flux: acceptable
Corrosion properties	Seawater: good to acceptable, weathering: good
Workability	Bending / Spinning (cold): acceptable (T3, T4) / good (O), Impact extrusion (cold): good (O), Deep drawing / upsetting (Condition) good (O) / good (O)

DIN 1725‑1 Grade 3.3206 T8 – High‑Strength, Corrosion‑Resistant Alloy for Automotive Extrusion DIN 1725-1 Grade 3.3307 F: Premium 99.85% Al + 0.5% Mg Alloy for High-Gloss Finishes

Metal