DIN 1725-1 Grade 3.3208 T3 Aluminum Alloy – High-Purity, Durable Finish
The alloy Al99,9MgSi belongs to the standardised aluminum shining materials. Aluminum alloys being based on aluminum with a minimum purity of 99,85 %, can be polished after mechanical polishing chemically or electrolytically to high gloss. The produced gloss degree must, in order to remain preserved, be afterwards anodised. The degree of arranged reflection (grade of gloss), depends again on the degree of purity and the anodising layer thickness. It is cold and hot hardenabel. Strength grade up to F 24 can be achieved by hot ageing. The alloy Al99,9MgSi has a very good corrosion resistance and is well cold and hot formable. This alloy is standardised only as extruded section (DIN 1748 T1 and T2) and piece of drop forge (DIN 1749 T1 and T2). Application: For decoration goods (trim) and Bijouterie articles for metal goods of all kinds (e.g. building fittings, table-ware, flow pressed parts) and for reflectors.
Properties
General
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
Density | 20.0 °C | 2.7 g/cm³ | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Mechanical
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Elastic modulus | 70.0 GPa | Typical for Wrought 6000 Series Aluminium | ||||
Elongation | 20.0 °C | 15.0 % | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile | A10 |
20.0 °C | 17.0 % | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile | ||
Hardness, Brinell | 20.0 °C | 45.0 [-] | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile | |
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 | 26.0 - 26.5 GPa | Typical for Wrought 6000 Series Aluminium | ||||
Tensile strength | 20.0 °C | 130.0 MPa | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Thermal
| Property | Value | Comment |
|---|---|---|
Coefficient of thermal expansion | 1.6e-05 - 2.4e-05 1/K | Typical for Wrought 6000 Series Aluminium |
Melting point | 555.0 - 655.0 °C | Typical for Wrought 6000 Series Aluminium |
Specific heat capacity | 887.0 - 963.0 J/(kg·K) | Typical for Wrought 6000 Series Aluminium |
Thermal conductivity | 170.0 - 220.0 W/(m·K) | Typical for Wrought 6000 Series Aluminium |
Electrical
| Property | Value | Comment |
|---|---|---|
Electrical conductivity | 21000000.0 - 34000000.0 S/m | Typical for Wrought 6000 Series Aluminium |
Electrical resistivity | 2.9e-08 - 5e-08 Ω·m | Typical for Wrought 6000 Series Aluminium |
Chemical properties
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
Copper | 0.05 - 0.2 % | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Iron | 0.04 | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Magnesium | 0.35 - 0.7 % | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Manganese | 0.03 | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Silicon | 0.35 - 0.7 % | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Titanium | 0.01 | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Zinc | 0.04 | T3 | DIN 1725-1, EN 573-3, EN 573-4 | Profile |
Technological properties
| Property | ||
|---|---|---|
| Workability | Excellent workability. | |
Metal
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