ZA-8 is the only hot chamber zinc die casting alloy in the ZA family. It has improved tensile strength, hardness and creep performance compared to the other ZAMAK alloys (except for Zamak 2 which has comparable properties). The 8% aluminum found in the alloy is added to increase strength and hardness, and lowers the density of the alloy. ZA-8 is the lightest of all the hot chamber zinc die casting alloys.
Typical Die Cast Mechanical Properties
| UTS: ksi (MPa) | Yield Strength: ksi (MPa) | Elongation: % | Hardness: Brinell | Modulus of Elasticity: psi x 10^6 |
| 54 (374) | 42 (290) | 6-10 | 95-110 | 12.4 |
Typical Die Cast Physical Properties
| Density: lb/in^3 (g/cc) | Melt Range: deg F (deg C) | Electrical Conduct: %IACS | Specific Heat: BTU/lb/deg F | Die Shrinkage: in/in |
| 0.227 (6.3) | 707-759 (375-404) | 27.7 | 0.104 | 0.007 |
Chemical Analysis
| | Al | Mg | Cu | Fe | Pb | Cd | Sn | Ni | Zn |
| Ingot (ASTM B240) | 8.2-8.8 | .02-.03 | .9-1.3 | .035 max | .005 max | .005 max | .002max | - | balance |
| Die Cast (ASTM B86) | 8.0-8.8 | 0.01-0.03 | .8-1.3 | .075 max | .006 max | .006 max | .003 max | - | balance |
Recommended Downloads
For additional properties of ZA-8 and other zinc die casting alloys, please visit our technical library.
