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|
|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|
For additional properties of ZA-8 and other zinc die casting alloys, please visit our technical library.