Materials / Zinc
Zinc Zamak 3
Zinc Zamak 3 (die-cast) strength, stiffness, density and thermal properties, with their source.
A bracket in Zinc Zamak 3, as-cast finish.
| Process | Cast |
|---|
| Mechanical |
|---|
| Yield strength | 221MPasourcetypical |
|---|
| Ultimate tensile strength | 283MPasourcetypical |
|---|
| Elongation at break | 10%sourcetypical, in 2 in. |
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| Young's modulus (stiffness) | 85.5GPasourcetypical |
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| Density | 6,600kg/m³sourcetypical |
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| Strength to weight | 33.5kN·m/kg |
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| Stiffness to weight | 13MN·m/kg |
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| Poisson's ratio | 0.27sourcetypical, Zamak 3 hot-chamber die cast |
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| Shear modulus | 33.7GPa |
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| Bulk modulus | 62GPa |
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| Speed of sound | 3,599m/s |
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| Thermal |
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| Thermal conductivity | 113W/m·Ksourcetypical |
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| Thermal expansion | 27.4µm/m·Ksourcetypical |
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| 100 mm part over a 50 °C swing | 137µm growth |
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| Specific heat | 419J/kg·Ksourcetypical |
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| Heats up and cools (diffusivity) | 40.9mm²/s |
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| Thermal shock resistance | 7,782W/m |
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| Melting point | 381–387°Csourcemelting range |
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| Values for | Zamak 3 (ASTM B86 die cast), Nathan Trotter (zinc alloy producer) technical data sheet, typical values |
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Stiffness against densityStrength against density
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