DIN 1725-2 Grade 3.2163 T5 – High‑Performance G‑AlSi9Cu3 Alloy for Precision Casting
G-AlSi9Cu3 is universally used alloy with very good casting characteristics. It is characterised by less inclination to breaking in and to cavities and is mostly not hardened. The alloy is suitable for difficult shapes, thin-walled, pressure tight, oscillating loaded, impact loaded cast parts. Application: Complicated machine and engine components for vehicle industry, electrical engineering, mining industry etc., cranking, housing, electric motor parts, bearing plate and supports, cylinder heads, linings etc.
Properties
General
| Property | Temperature | Value | Condition | Related Standards |
|---|---|---|---|---|
Density | 20.0 °C | 2.75 g/cm³ | T5 | DIN 1725-2, EN 1676, EN 1706 |
Mechanical
| Property | Temperature | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|---|
Elastic modulus | 20.0 °C | 75.0 GPa | T5 | DIN 1725-2, EN 1676, EN 1706 | |
Elongation | 220.0 °C | 8.4 % | T5 | DIN 1725-2, EN 1676, EN 1706 | |
280.0 °C | 21.8 % | T5 | DIN 1725-2, EN 1676, EN 1706 | ||
Poisson's ratio | 0.33 [-] | Typical for Cast 3xx.x Series Aluminium | |||
Shear modulus | 2.8 GPa | Typical for Cast 3xx.x Series Aluminium | |||
Tensile strength | 20.0 °C | 348.0 MPa | T5 | DIN 1725-2, EN 1676, EN 1706 | |
220.0 °C | 133.0 MPa | T5 | DIN 1725-2, EN 1676, EN 1706 | ||
280.0 °C | 66.0 MPa | T5 | DIN 1725-2, EN 1676, EN 1706 |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|---|
Coefficient of thermal expansion | 200.0 °C | 2.1e-05 1/K | T5 | DIN 1725-2, EN 1676, EN 1706 | |
Melting point | 505.0 - 770.0 °C | Typical for Cast 3xx.x Series Aluminium | |||
Specific heat capacity | 20.0 °C | 880.0 J/(kg·K) | T5 | DIN 1725-2, EN 1676, EN 1706 | |
Thermal conductivity | 20.0 °C | 110.0 - 130.0 W/(m·K) | T5 | DIN 1725-2, EN 1676, EN 1706 |
Electrical
| Property | Temperature | Value | Condition | Related Standards |
|---|---|---|---|---|
Electrical conductivity | 20.0 °C | 14000000.0 - 18000000.0 S/m | T5 | DIN 1725-2, EN 1676, EN 1706 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Aluminium | 82.1 % | T5 | DIN 1725-2, EN 1676, EN 1706 |
Copper | 2.0 - 3.5 % | T5 | DIN 1725-2, EN 1676, EN 1706 |
Iron | 0.8 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Lead | 0.2 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Manganese | 0.1 - 0.5 % | T5 | DIN 1725-2, EN 1676, EN 1706 |
Nickel | 0.3 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Silicon | 8.0 - 11.0 % | T5 | DIN 1725-2, EN 1676, EN 1706 |
Tin | 0.1 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Titanium | 0.15 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Zinc | 1.2 | T5 | DIN 1725-2, EN 1676, EN 1706 |
Technological properties
| Property | ||
|---|---|---|
| Processing methods | permanent mould casting | |
Metal
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