ACuZinc was developed by General Motors in the 1990's and has improved tensile strength, hardness and creep performance compared to the Zamak alloys.  Its strength, hardness and wear properties are comparable to ZA-12.  Although ACuZinc can be cast in a hot chamber die casting machine, it is known to be more difficult to cast with a higher wear rate of the shot end components in the die casting machine.

Typical Die Cast Mechanical Properties
UTS:  ksi (MPa)Yield Strength:  ksi (MPa)Elongation:  %Hardness:  BrinellModulus of Elasticity:  psi x 10^6
59 (407)49 (338)6105-12514.5

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
0.248 (6.851)750-925 (399-496) est26.90.10570.0075

Chemical Analysis
Ingot (ASTM B240)2.8-3.3.035-.0505.2-6.0.05 max.004 max.003 max.002max-balance
Die Cast (ASTM B86)2.5-3.3.025-.055.0-6.0.075 max.005 max.004 max.003 max-balance

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