Although more commonly recognized as a gravity casting alloy, ZA-12 can also be die cast when higher strength is required. It has the best combination of strength and castability of all the ZA alloys. The cold chamber die casting process is required for this alloy due to the higher attack rate on the shot end components.
Typical Die Cast Mechanical Properties
| UTS: ksi (MPa) | Yield Strength: ksi (MPa) | Elongation: % | Hardness: Brinell | Modulus of Elasticity: psi x 10^6 |
| 58 (400) | 46 (317) | 4-7 | 95-115 | 12.0 |
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 |
| 0.218 (6.0) | 710-810 (377-432) | 28.3 | 0.107 | 0.0075 |
Chemical Analysis
| | Al | Mg | Cu | Fe | Pb | Cd | Sn | Ni | Zn |
| Ingot (ASTM B240) | 10.8-11.5 | .02-.03 | .5-1.2 | .05 max | .005 max | .005 max | .002max | - | balance |
| Die Cast (ASTM B86) | 10-5-11.5 | .01-.03 | .8-1.2 | .075 max | .006 max | .006 max | .003 max | - | balance |
Recommended Downloads
For additional properties of ZA-12 and other zinc die casting alloys, please visit our technical library.
