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AWS BAg-20 vs. Z21721 Zinc

AWS BAg-20 belongs to the otherwise unclassified metals classification, while Z21721 zinc belongs to the zinc alloys. They have a modest 32% 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 (12, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-20 and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 93
87
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 35
35
Tensile Strength: Ultimate (UTS), MPa 160
150

Thermal Properties

Latent Heat of Fusion, J/g 150
110
Melting Completion (Liquidus), °C 770
410
Melting Onset (Solidus), °C 680
390
Specific Heat Capacity, J/kg-K 340
390
Thermal Expansion, µm/m-K 21
26

Otherwise Unclassified Properties

Density, g/cm3 8.6
6.6
Embodied Carbon, kg CO2/kg material 30
2.8
Embodied Energy, MJ/kg 480
53

Common Calculations

Stiffness to Weight: Axial, points 6.0
7.3
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 5.1
6.4
Strength to Weight: Bending, points 7.6
9.6
Thermal Shock Resistance, points 5.9
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 37 to 39
0 to 0.0050
Iron (Fe), % 0
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Silver (Ag), % 29 to 31
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 30 to 34
98.9 to 100
Residuals, % 0 to 0.15
0