Zamak 2 offers the highest tensile strength, hardness and creep performance compared to the other zinc die casting alloys in the ZAMAK family. Its higher copper content (3%) contributes to some of the improved mechanical properties but also affects the casting's dimensional changes after ageing (0.0014 in/in after 20 years). This alloy is also easily cast, coated and machined as is typical with each of the ZAMAK alloys.
Typical Mechanical Properties
| UTS: ksi (MPa) | Yield Strength: ksi (MPa) | Elongation: % | Hardness: Brinell | Modulus of Elasticity: psi x 10^6 |
| 52 (359) | 41 (283) | 7 | 100 | 12.4 |
Typical 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 |
| 0.240 (6.6) | 715-734 (379-390) | 25 | 0.10 | 0.007 |
Chemical Analysis
| | Al | Mg | Cu | Fe | Pb | Cd | Sn | Ni | Zn |
| Ingot (ASTM B240) | 3.9-4.3 | .025-.05 | 2.7-3.3 | .035 max | .004 max | .0030 max | .0015 max | - | balance |
| Die Cast (ASTM B86) | 3.7-4.3 | .02-.06 | 2.6-3.3 | .05 max | .005 max | .004 max | .002 max | - | balance |
Recommended Downloads
For additional properties of Zamak 2 and other zinc die casting alloys, please visit our technical library.
