Electrical Resistivity of Common Zinc Alloys

The electrical resistivity of zinc alloys varies depending on their composition and specific alloying elements. In general, zinc itself is a relatively good conductor of electricity compared to other metals, but the addition of alloying elements can significantly alter its electrical properties.

The following table provides a comprehensive list of electrical resistivity values for common zinc alloys at standard room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)

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Electrical Resistivity of Zinc Alloys
UNS numberComposition
Pure zincZ1300099.995.96
AC41A (Zamak 5)Z35531Zn-4Al-1Cu-0.05Mg6.5
AC43A (Zamak 2)Z35541Zn-4Al-2.5Cu-0.04Mg6.89
AG40A (Zamak 3)Z33520Zn-4Al-0.04Mg6.4
AG40B (Zamak 7)Z33523Zn-4Al-0.015Mg6.39
Copper-hardened rolled zincZ44330Zn-1.0Cu6.2
ILZRO 16Zn-1.25Cu-0.2Ti-0.15Cr8.4
Korloy 2684Zn-22Al6
Rolled zincZ21210Zn-0.08Pb6.2
Rolled zincZ21220Zn-0.06Pb-0.06Cd6.06
Rolled zincZ21540Zn-0.3Pb-0.03Cd6.06
Rolled zinc alloyZ45330Zn-1.0Cu-0.01Mg6.3
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018.