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AWS BVAu-4 vs. Z21721 Zinc

AWS BVAu-4 belongs to the otherwise unclassified metals classification, while Z21721 zinc belongs to the zinc alloys. There are 15 material properties with values for both materials. Properties with values for just one material (14, 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 AWS BVAu-4 and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
87
Poisson's Ratio 0.4
0.25
Shear Modulus, GPa 41
35
Tensile Strength: Ultimate (UTS), MPa 190
150

Thermal Properties

Latent Heat of Fusion, J/g 100
110
Melting Completion (Liquidus), °C 950
410
Melting Onset (Solidus), °C 950
390
Specific Heat Capacity, J/kg-K 190
390
Thermal Expansion, µm/m-K 14
26

Otherwise Unclassified Properties

Density, g/cm3 17
6.6

Common Calculations

Stiffness to Weight: Axial, points 3.6
7.3
Stiffness to Weight: Bending, points 9.3
22
Strength to Weight: Axial, points 3.0
6.4
Strength to Weight: Bending, points 4.2
9.6
Thermal Shock Resistance, points 8.7
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0 to 0.0010
0 to 0.070
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0
0 to 0.0050
Gold (Au), % 81.5 to 82.5
0
Iron (Fe), % 0
0 to 0.010
Lead (Pb), % 0 to 0.0020
0 to 1.0
Nickel (Ni), % 17.5 to 18.5
0
Phosphorus (P), % 0 to 0.0020
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.0010
98.9 to 100