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Zamak 5 vs. AWS BAg-2a

Zamak 5 belongs to the zinc alloys classification, while AWS BAg-2a belongs to the otherwise unclassified metals. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is AWS BAg-2a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
83
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 33
31
Tensile Strength: Ultimate (UTS), MPa 330
170

Thermal Properties

Latent Heat of Fusion, J/g 120
130
Melting Completion (Liquidus), °C 390
710
Melting Onset (Solidus), °C 380
610
Specific Heat Capacity, J/kg-K 410
310
Thermal Expansion, µm/m-K 27
23

Otherwise Unclassified Properties

Density, g/cm3 6.4
8.8
Embodied Carbon, kg CO2/kg material 3.0
30
Embodied Energy, MJ/kg 57
470

Common Calculations

Stiffness to Weight: Axial, points 7.5
5.2
Stiffness to Weight: Bending, points 23
17
Strength to Weight: Axial, points 14
5.4
Strength to Weight: Bending, points 16
7.8
Thermal Shock Resistance, points 9.9
6.5

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
19 to 21
Copper (Cu), % 0.7 to 1.3
26 to 28
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
Silver (Ag), % 0
29 to 31
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 94.3 to 95.7
21 to 25
Residuals, % 0
0 to 0.15