Zamak 3
Zamak 3 (ASTM AG40A), or Zinc Alloy 3, is the most widely used zinc alloy in North America and is usually the first choice when considering zinc for die casting for a number of reasons.
- Excellent balance of desirable physical and mechanical properties
- Superb castability and long-term dimensional stability
- Excellent finishing characteristics for plating, painting, and chromate treatments
- Excellent damping capacity and vibration attenuation in comparison to aluminum die cast alloys
When it comes to die casting, Zamak 3 is the standard by which other zinc alloys are rated.
Mechanical Properties
Physical Properties
Composition
Zinc | |
---|---|
% | Zamak 3 |
Aluminum | 3.5-4.3 |
Copper | 0.25 |
Magnesium | 0.02-0.05 |
Iron (max) | 0.1 |
Lead (max) | 0.005 |
Cadmium (max) | 0.004 |
Tin (max) | 0.003 |
Nickel (max) | |
Zinc | Bal. |
Manganese | |
Silicon | |
Other-Metallic | |
RoHS Compliant | ✓ |