WL 3.3354 – Grade 3.3354 H18 Magnesium Alloy: Superior Corrosion Resistance & Weldability

The alloy is characterised by a good corrosion resistance. It is sea water steady and resistant to saline atmosphere. The Mg content increases the strength, but the cold forming capacity decreases. The material is nature hard, i.e. only by a cold forming and not by a purposeful heat treatment a strength increase can be attained. It is well polishable and anodisable. The splinter-giving machinability becomes better with increasing Mg content, just as the weldability. AlMg5 has the highest Mg content of the standardized AlMg alloys, so it is badly cold formable, but the strength is the highest, so that the employment is possible for statically more highly loaded constructions. The alloy is suitable for a splinter-giving machinig on automats. It possesses sensitivity to intergranular corrosion. By a purposeful heat treatment and/or by additive of Mn or Cr the inclination to the intergranular corrosion can be reduced. Application: In the optics, in the automobile engineering for body parts, in mechanical engineering (turned parts). For joining elements (solid rivets, blind rivets, riveting nuts and screws). In the building industry for carrying constructions as well as in shipbuilding considering the sensitivity to corrosion.

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density	20.0 °C	2.64 g/cm³	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	67.0 - 72.0 GPa	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Hardness, Brinell	20.0 °C	95.0 [-]	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
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	20.0 °C	27.0 GPa	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Tensile strength	20.0 °C	350.0 MPa	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Coefficient of thermal expansion	-50.0 °C	2.25e-05 1/K	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
	100.0 °C	2.41e-05 1/K	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
	200.0 °C	2.51e-05 1/K	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
	300.0 °C	2.61e-05 1/K	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Max service temperature		150.0 °C				Typical for Wrought 5000 Series Aluminium
Melting point		560.0 - 655.0 °C				Typical for Wrought 5000 Series Aluminium
Specific heat capacity	20.0 °C	904.0 J/(kg·K)	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Thermal conductivity	20.0 °C	110.0 - 140.0 W/(m·K)	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Electrical conductivity	20.0 °C	15000000.0 - 19000000.0 S/m	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Electrical resistivity		3.3e-08 - 5e-08 Ω·m				Typical for Wrought 5000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.2	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Copper	0.1	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Iron	0.5	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Magnesium	4.5 - 5.6 %	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Manganese	0.1 - 0.6 %	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Silicon	0.4	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Titanium	0.2	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire
Zinc	0.2	H18	DIN 1725-1, EN 573-3, EN 573-4, WL 3.3354	Wire

Technological properties

Property
Workability	Good workability.

Property

Workability

Good workability.

WL 3.3354 H12 Alloy – Grade 3.3354: Superior Corrosion Resistance & Strength Aluminum DIN 3.3523 H19 – Superior Corrosion Resistance & Welding Performance

Metal