Zamak 2 offers the highest tensile strength, hardness and creep performance compared to the other 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|
|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|
For additional properties of Zamak 2 and other zinc die casting alloys, please visit our technical library.