DIN 1725-1 Grade 3.3307 O – Premium Aluminum Alloy for High‑Gloss Anodizing

The alloy Al99,85Mg0,5 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 Al99,85Mg0,5 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	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	70.0	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Elongation	20.0 °C	14.0 %	O	DIN 1725-1, EN 573-3, EN 573-4	Wire	A100
	20.0 °C	20.0 %	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire	A10
	20.0 °C	23.0 %	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip
Hardness, Brinell	20.0 °C	23.0 [-]	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, 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	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Tensile strength	20.0 °C	70.0 MPa	O	DIN 1725-1, EN 573-3, EN 573-4	Wire
	20.0 °C	80.0 - 120.0 MPa	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip

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)	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire

Electrical

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

Chemical properties

Property	Value	Condition	Related Standards	Shape
Iron	0.08	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Magnesium	0.3 - 0.6 %	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Manganese	0.03	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Silicon	0.08	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Titanium	0.02	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire
Zinc	0.05	O	DIN 1725-1, EN 573-3, EN 573-4	Sheet, Strip, Wire

Technological properties

Property
Workability	Good workability.

Property

Workability

Good workability.

DIN 1725-2 Grade 3.3292 F – High-Performance Anodizable Aluminum Alloy DIN 1725-1 Grade 3.3308 O: Premium High-Gloss Aluminum Alloy

Metal