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Zamak 5 vs. AWS BAu-1

Zamak 5 belongs to the zinc alloys classification, while AWS BAu-1 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is Zamak 5 and the bottom bar is AWS BAu-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
110
Poisson's Ratio 0.25
0.37
Shear Modulus, GPa 33
40
Tensile Strength: Ultimate (UTS), MPa 330
210

Thermal Properties

Latent Heat of Fusion, J/g 120
150
Melting Completion (Liquidus), °C 390
1020
Melting Onset (Solidus), °C 380
990
Specific Heat Capacity, J/kg-K 410
290
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Density, g/cm3 6.4
13

Common Calculations

Stiffness to Weight: Axial, points 7.5
4.7
Stiffness to Weight: Bending, points 23
12
Strength to Weight: Axial, points 14
4.5
Strength to Weight: Bending, points 16
6.1
Thermal Shock Resistance, points 9.9
8.5

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
61.9 to 63
Gold (Au), % 0
37 to 38
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0
Nickel (Ni), % 0 to 0.020
0
Silicon (Si), % 0 to 0.030
0
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 94.3 to 95.7
0
Residuals, % 0
0 to 0.15