EN 573-3 Grade 3.3211 T651 Aluminum Alloy – Superior Corrosion Resistance & Easy Weldability

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	T651	EN 573-3, EN 485

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	69.0 GPa	T651	EN 573-3, EN 485
	70.0 GPa	T651	EN 573-3, EN 485
Hardness, Brinell	80.0 [-]	T651	EN 573-3, EN 485
	81.0 [-]	T651	EN 573-3, EN 485
	84.0 [-]	T651	EN 573-3, EN 485
	88.0 [-]	T651	EN 573-3, EN 485
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	T651	EN 573-3, EN 485
Tensile strength	260.0 MPa	T651	EN 573-3, EN 485
	265.0 MPa	T651	EN 573-3, EN 485
	275.0 MPa	T651	EN 573-3, EN 485
	290.0 MPa	T651	EN 573-3, EN 485

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.3e-05 1/K	T651	EN 573-3, EN 485
	20 °C	2.36e-05 1/K	T651	EN 573-3, EN 485
	100 °C	2.3e-05 1/K	T651	EN 573-3, EN 485
	100 °C	2.36e-05 1/K	T651	EN 573-3, EN 485
Melting point		580.0 - 640.0 °C	T651	EN 573-3, EN 485
		580.0 - 650.0 °C	T651	EN 573-3, EN 485
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)	T651	EN 573-3, EN 485
		170.0 - 200.0 W/(m·K)	T651	EN 573-3, EN 485

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	22000000.0 - 30000000.0 S/m	T651	EN 573-3, EN 485
	23000000.0 - 27000000.0 S/m	T651	EN 573-3, EN 485
Electrical resistivity	3.33e-08 - 4.55e-08 Ω·m	T651	EN 573-3, EN 485
	3.7e-08 - 4.35e-08 Ω·m	T651	EN 573-3, EN 485

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.04 - 0.35 %	T651	EN 573-3, EN 485
Copper	0.15 - 0.4 %	T651	EN 573-3, EN 485
Iron	0.70 %	T651	EN 573-3, EN 485
Magnesium	0.8 - 1.2 %	T651	EN 573-3, EN 485
Manganese	0.15 %	T651	EN 573-3, EN 485
Silicon	0.4 - 0.8 %	T651	EN 573-3, EN 485
Titanium	0.15 %	T651	EN 573-3, EN 485
Zinc	0.25 %	T651	EN 573-3, EN 485

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)

EN 573-3 Grade 3.3211 T62: High-Performance Corrosion-Resistant Alloy DIN 1725‑1 Grade 3.3211 T652 Aluminium Alloy – Performance & Applications

Metal