Zamak 5

Zamak 5 (ASTM AC41A) or Zinc Alloy 5, is the most widely used zinc alloy in Europe. 

  • It has a higher copper content than Zamak 3, which results in higher strength
  • It has less ductility (decreased elongation) than Zamak 3
  • Designers must keep in mind that this reduction in ductility can affect formability during secondary operations such as bending, riveting, swaging, or crimping operations
  • Because of the wide availability of Zamak 3, component engineers often strengthen components by design modifications instead of using Zamak 5
  • When a measure of tensile performance is needed, Zamak 5 castings are recommended.
  • Zamak 5 is more readily plated, finished, and machined than Alloy 3

Mechanical Properties

Material Alloy Elongation   Tensile Strength   Yield Strength (0.2%)   Impact Strength   Shear Strength   Hardness   Process
% in 50mm
PSI x 103
PSI x 103
ft lb
PSI x 103
布氏硬度 (HB)
Zinc Casting Metals
7
48
33
48
38
91

Physical Properties

Material Alloy Density   Melting Point (Average +/- 50)   Thermal Conductivity   Coefficient of Thermal Expansion   Electrical Conductivity   Process
lb/in3
°F
BTU/h∙ft∙°F
µin/in°F
%IACS
Zinc Casting Metals
0.240
722
62.9
15.2
26.0

Composition

Zinc Casting Metals
% Zamak 5
Aluminum 3.5-4.3
Copper 0.75-1.25
Magnesium 0.03-0.08
Iron (max) 0.1
Lead (max) 0.005
Cadmium (max) 0.004
Tin (max) 0.003
Nickel (max)
Zinc Bal.
Manganese
Silicon
Other-Metallic
RoHS Compliant

7waystoimprovedcc_banner.png

 

©2020 Dynacast. All rights reserved

Last updated 12.23.2019