Zamak KS
ZnAI4Cu3Mg0.5
Zamak KS alloy was developed for spin casting decorative parts.
Zamak KS has the same composition as zamak 2, except with more magnesium in order to produce finer grains and reduce the orange peel effect
- For spin (centrifugal) casting
- Lower orange peel effect
- Smoother surface
Zamak KS Chemical, Physical and Mechanical Properties
1
Zamak KS Chemical Analysis
| Analysis ( %) | Zamak KS / ZnAI4Cu3Mg0.5 |
|---|---|
| Al | 3.9 – 4.3 |
| Cu | 2.7 – 3.3 |
| Mg | 0.4 – 0.6 |
| Pb | ≤0.003 |
| Fe | ≤0.02 |
| Cd | ≤0.003 |
| Sn | ≤0.001 |
| Si | ≤0.02 |
| Ni | ≤0.001 |
2
Zamak KS General Mechanical Properties
| Mechanical Properties | Metric Value |
|---|---|
| Ultimate Tensile Strength | < 200 MPa |
| Yield Strength (0.2% offset) | < 200 MPa |
| Elongation | < 2% |
| Hardness | 150 Brinell max |
3
Zamak KS General Physical Properties
| Physical Properties | Metric Value |
|---|---|
| Solidification Range (melting range) | 380—390 °C |
| Density | 6.6 g/cm3 |
| Coefficient of Thermal Expansion | 28.0 μm/m-°C |
| Thermal Conductivity | 105 W/m-K |
| Electrical Conductivity | 25% IACS |
| Specific Heat Capacity | 419 J/kg-°C |