Zinc
Zinc – Primary Die Casting Metal and Galvanizing Material for Corrosion Protection
Zinc and its Zamak die casting alloys offer excellent dimensional accuracy, low melting point (387–420°C), and good mechanical properties at very competitive cost. As the most widely used die casting metal after aluminum, zinc serves consumer electronics, hardware, and automotive components. Its largest industrial use by volume is galvanizing steel to provide long-term corrosion protection.
Key Properties
- Tensile Strength: 207 MPa
- Melting Range: 387–420°C — low energy die casting
- Density: 7.13 g/cm³
- Die Casting Accuracy: Excellent — near-net-shape with tight tolerances
- Formability: Excellent
- Standards: ASTM B6 / ASTM B86
Common Applications
Die cast housings, knobs, lock hardware, automotive door handles, electrical connectors and fuse boxes, decorative hardware, and galvanizing of structural steel for long-term outdoor corrosion protection.
Material properties
| Material name | Zinc |
|---|---|
| Type | Other Metals |
| Standard code | ASTM B6 / ASTM B86 |
| Tensile strength (MPa) | 207 |
| Yield strength (MPa) | 117 |
| Fatigue strength (MPa) | 47 |
| Elongation (%) | 10 |
| Hardness (Brinell) | 65 |
| Density (g/cm³) | 7.13 |
| Electrical resistivity (µΩ·in) | 5.9 |
| Thermal conductivity (W/m·K) | 113 |
| Melting range (°C) | 387–420 |
| Weldability | Fair |
| Formability | Excellent |
| Shear modulus | 43 |
| Industry code | zinc |