ZA-27 is the strongest and lightest of all the gravity cast zinc alloys with a reported yield strength of 54 ksi as a sand casting. It is the lightest of all the zinc alloys due to its 27% aluminum content. ZA-27 sand casting is excellent alloy choice when coverting low volume stampings or weldments in other materials such as stainless steel.
Typical Sand Cast Mechanical Properties
| UTS: ksi (MPa) | Yield Strength: ksi (MPa) | Elongation: % | Hardness: Brinell | Modulus of Elasticity: psi x 10^6 |
| 58-64 (400-441) | 54 (372) | 3-6 | 110-120 | 11.3 |
Typical Sand 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 |
| 0.181 (5.0) | 708-903 (375-484) | 29.7 | 0.125 | 0.008 |
Chemical Analysis
| | Al | Mg | Cu | Fe | Pb | Cd | Sn | Ni | Zn |
| Ingot (ASTM B240) | 25.5-28.0 | .012-.02 | 2.0-2.5 | .07 max | .005 max | .005 max | .002max | - | balance |
| Die Cast (ASTM B86) | 25.0-28.0 | .01-.02 | 2.0-2.5 | .075 max | .006 max | .006 max | .003 max | - | balance |
Recommended Downloads
For additional properties of ZA-27 and other zinc die casting alloys, please contact us or visit our technical library.
