EZACâ„¢

Overview

EZAC™ is Eastern Alloys' new high strength, creep resistant, hot chamber zinc based die casting alloy.

With excellent fluidity and a low casting temperature (780 - 825 F), EZAC™ is perfect for the hot chamber die casting process.  In addition, because of EZAC™'s low melting temperature, it does not have the same casting difficulties (such as erosion and wear) that other similar high strength die casting alloys exhibit.  Casting trials have shown neglibible component wear in EZAC™ compared to other high strength hot chamber zinc die casting alloys.

Improvements of EZAC™ over traditional zinc diecasting alloys include:

  • Creep Resistance: Creep occurs when components deform with time, being subject to elevated temperatures and stresses. Most zinc alloys are known to have lower creep resistance and are often overlooked for many applications with higher operating temperatures.
  • Tensile Strength: With an average yield strenth of 396 MPa, EZAC™ is stronger than any other Hot Chamber Zinc die casting alloy, and is comparable in strength to ZA-27, the strongest Cold Chamber Zinc die casting alloy.
  • High Temp Tensile Properties: EZAC™ has improved tensile strength over other the hot chamber zinc alloys.
  • Hardness: Hardness tests comparing EZAC™ to ACuZinc5 and Zamak 2 show over a 12% improvement compared to ACuZinc5, and over 19% improvement over Zamak 2.

Property Comparisons

 EZAC™ACuZinc 5Zamak 5
Ultimate Tensile Strength: (ksi) 60 56 48
Yield Strength (ksi) 57 48 39
Strain (%) 1 6.5 7
High Temp Tensile Strength (ksi) 38.5 32 26.5
High Temp Yield Strength (ksi) 24 21 19
High Temp Strain (%) 4.5 7 14

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