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:  BrinellModulus of Elasticity:  psi x 10^6
54 (374)42 (290)6-1095-11012.4

Typical Die Cast Physical Properties
Density:  lb/in^3 (g/cc)Melt Range:  deg F (deg C)Electrical Conduct: %IACSSpecific Heat:  BTU/lb/deg FDie Shrinkage: in/in
0.227 (6.3)707-759 (375-404)27.70.1040.007

Chemical Analysis
Ingot (ASTM B240)8.2-8.8.02-.03.9-1.3.035 max.005 max.005 max.002max-balance
Die Cast (ASTM B86)8.0-8.80.01-0.03.8-1.3.075 max.006 max.006 max.003 max-balance

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