Zamak 410 (Zn95/Al4/Cu1/Mg) is a high-performance zinc-based alloy composed of approximately 95% zinc, 4% aluminum, 1% copper, and a trace of magnesium (~0.04%). This composition provides an optimal balance of strength, ductility, and castability, making Zamak 410 one of the most versatile materials in zinc die-casting applications (Wu et al., 2016; Wensheng et al., 2015).
Material Overview
Physically, Zamak 410 exhibits high tensile strength (exceeding 500 MPa) and a hardness above 120 HV, enabling excellent wear and deformation resistance under stress. The alloy’s mechanical robustness arises from its Zn–Al–Cu ternary eutectic structure, where aluminum and copper strengthen the zinc matrix by solid-solution hardening and the formation of fine intermetallic compounds (Wensheng et al., 2015).
The addition of a small amount of magnesium (≈0.04%) plays a critical microstructural role, refining the grain boundaries and improving ductility, yield strength, and high-temperature performance. This refinement reduces porosity and enhances uniform stress distribution, ensuring consistent mechanical properties in both static and dynamic loading conditions (Wu et al., 2016).
Physical and Chemical Properties
Zamak 410 is characterized by its excellent casting behavior, low melting temperature (~385 °C), and superior dimensional stability. Chemically, the presence of aluminum improves corrosion resistance, while copper enhances strength and hardness through the formation of CuZn₄ and Al₂Cu phases. Magnesium contributes to the stabilization of these intermetallics, reducing grain coarsening during solidification.
The resulting microstructure provides a balance between strength and ductility, enabling the alloy to withstand high strain rates and thermal cycling without mechanical degradation. Its creep resistance and resistance to fatigue under prolonged stress make it suitable for high-load environments (Machler, 1996).
Applications and Advantages
Pressure die casting. Zamak 410’s high fluidity and low melting point make it particularly suited for hot-chamber die casting, allowing precise reproduction of fine details and smooth surface finishes in complex components (Virginie et al., 2000).
Automotive and mechanical components. Due to its strength, dimensional accuracy, and thermal stability, Zamak 410 is widely used in the production of automotive housings, handles, connectors, and decorative trim. It provides mechanical reliability even under cyclic or high-load conditions (Hanna & Rashid, 1994).
Electrical and electronic systems. The alloy’s excellent electrical conductivity, corrosion resistance, and ability to hold tight tolerances make it ideal for connectors, switch housings, and precision fittings.
High-load and high-temperature applications. Zamak 410 maintains mechanical integrity under elevated temperatures and mechanical stress, providing creep resistance and long-term dimensional stability for load-bearing components (Machler, 1996).
Performance Benefits
- High tensile strength (>500 MPa) and hardness (>120 HV).
- Excellent ductility and yield strength at elevated temperatures.
- Superior casting properties and dimensional precision.
- Good corrosion and creep resistance for long service life.
- Optimized for high-load, high-strain, and thermally cycled environments.
Goodfellow Availability
Goodfellow supplies Zamak 410 in foam form. Its combination of strength, ductility, and castability ensures reliable performance in high-precision and high-stress environments.
Explore Zamak 410 and other zinc-based alloys in Goodfellow’s online catalogue: Goodfellow product finder.
References
- Wu, Z., Sandlöbes, S., Wu, L., Hu, W., Gottstein, G., & Korte-Kerzel, S. (2016). Mechanical Behaviour of Zn–Al–Cu–Mg Alloys: Deformation Mechanisms of As-Cast Microstructures. Materials Science and Engineering A. https://doi.org/10.1016/J.MSEA.2015.11.020
- Wensheng, S., Liqiang, W., Yongli, C., & Yifeng, W. (2015). High-Strength Deformable Zinc-Based Alloy Material.
- Virginie, M. M., Alain, D., & Luc, A. (2000). New Zinc-Aluminum-Copper-Magnesium Alloy for Hot Chamber Pressure Die Casting of High Surface Quality Parts.
- Hanna, M. D., & Rashid, M. S. (1994). High Strength, High Temperature and High Strain Rate Applications of a Zinc-Base Alloy.
- Machler, M. (1996). Zinc Alloy Enhances Strength and Creep Resistance. Advanced Materials & Processes.