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Zamak 5 vs. AWS BAg-21

Zamak 5 belongs to the zinc alloys classification, while AWS BAg-21 belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is AWS BAg-21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
85
Poisson's Ratio 0.25
0.36
Shear Modulus, GPa 33
31
Tensile Strength: Ultimate (UTS), MPa 330
150

Thermal Properties

Latent Heat of Fusion, J/g 120
140
Melting Completion (Liquidus), °C 390
800
Melting Onset (Solidus), °C 380
690
Specific Heat Capacity, J/kg-K 410
280
Thermal Expansion, µm/m-K 27
19

Otherwise Unclassified Properties

Density, g/cm3 6.4
9.8
Embodied Energy, MJ/kg 57
970

Common Calculations

Stiffness to Weight: Axial, points 7.5
4.8
Stiffness to Weight: Bending, points 23
15
Strength to Weight: Axial, points 14
4.2
Strength to Weight: Bending, points 16
6.4
Thermal Shock Resistance, points 9.9
6.6

Alloy Composition


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Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
27.5 to 29.5
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
2.0 to 3.0
Silicon (Si), % 0 to 0.030
0
Silver (Ag), % 0
62 to 64
Tin (Sn), % 0 to 0.0030
5.0 to 7.0
Zinc (Zn), % 94.3 to 95.7
0
Residuals, % 0
0 to 0.15