Material
Zinc Alloy Zamak 5 (ZnAl4Cu1)
Zinc alloy Zamak 5 adds about 1% copper to Zamak 3 for roughly 10% more strength and higher hardness, with reduced ductility, a good fit where more tensile performance is needed.
Manufacturing processes
CNC
About
Zamak 5 (ZnAl4Cu1) has the same base composition as Zamak 3 plus about 1% copper, which raises strength by roughly 10% and increases hardness and corrosion resistance relative to Zamak 3, at the cost of reduced ductility and some dimensional stability. That lower ductility can affect bending, riveting, or crimping done after machining. Its recommended maximum mechanical service temperature is only about 95 °C, so it isn't suited to hot environments.
Zamak 5 is a goo choice for automotive and accessory parts needing more strength than Zamak 3.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.13 mm)
- Density
- 6.7 g/cm³
- Min. wall thickness
- -
Technical Properties
- Tensile strength
- 328 - 331 MPa
- Tensile modulus
- 87000 MPa
- Tensile elongation
- 3 - 7%
- Embossing
- min. 0.3 mm
- Engraving
- min. 0.3 mm
- Warping risk
- N/A