DIN 1725-1 Grade 3.3308 H24 – High-Gloss Aluminum Alloy (Al99.9Mg0.5)

The alloy Al99,9Mg0,5 belongs to the standardised glossing materials. It can be polished after preceding mechanical polishing chemically or electrolytically to high gloss. For using the high gloss surface a afterwards anodising is necessary. The degree of arranged reflection (gloss degree) dependents from the degree of purity of the alloy and the thickness of the produced anodising layer. The alloy Al99,9Mg0,5 is nature hard, i.e. with their a strength increase can be achieved only by cold forming. The material is well cold and warm fomrable, has a very good corrosion resistance and is also well anodically to be oxidized. Application: For metal goods, like building fittings, table-ware, flow pressed parts, autotrim and divides and for decoration and jeweller goods.

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density	20.0 °C	2.7 g/cm³	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	70.0	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Elongation	20.0 °C	12.0 %	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat	A10
	20.0 °C	15.0 %	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Hardness, Brinell	20.0 °C	33.0 [-]	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
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	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Tensile strength	20.0 °C	100.0 - 140.0 MPa	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Coefficient of thermal expansion		2.2e-05 - 2.5e-05 1/K				Typical for Wrought 5000 Series Aluminium
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		879.0 - 963.0 J/(kg·K)				Typical for Wrought 5000 Series Aluminium
Thermal conductivity	20.0 °C	215.0 W/(m·K)	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Electrical conductivity	20.0 °C	35000000.0	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Electrical resistivity		3.3e-08 - 5e-08 Ω·m				Typical for Wrought 5000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Iron	0.04	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Magnesium	0.35 - 0.6 %	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Manganese	0.03	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Silicon	0.06	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Titanium	0.01	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat
Zinc	0.04	H24	DIN 1725-1, EN 573-3, EN 573-4	Flat

Technological properties

Property
Workability	Good workability.

Property

Workability

Good workability.

DIN 1725-1 Grade 3.3307 T6: Premium Al99.85Mg0.5 Alloy for High-Gloss Anodized Surfaces DIN 1725-1 Grade 3.3308 H28: Premium Al99.9Mg0.5 Alloy for High‑Gloss, Anodised Finishes

Metal