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AWS BVAu-8 vs. ZA-12

AWS BVAu-8 belongs to the otherwise unclassified metals classification, while ZA-12 belongs to the zinc alloys. There are 15 material properties with values for both materials. Properties with values for just one material (22, 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-8 and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
83
Poisson's Ratio 0.42
0.26
Shear Modulus, GPa 36
33
Tensile Strength: Ultimate (UTS), MPa 140
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 71
120
Melting Completion (Liquidus), °C 1240
430
Melting Onset (Solidus), °C 1200
380
Specific Heat Capacity, J/kg-K 140
450
Thermal Expansion, µm/m-K 14
24

Otherwise Unclassified Properties

Density, g/cm3 19
6.0

Common Calculations

Stiffness to Weight: Axial, points 3.0
7.6
Stiffness to Weight: Bending, points 8.3
24
Strength to Weight: Axial, points 2.1
12 to 19
Strength to Weight: Bending, points 3.2
15 to 20
Thermal Shock Resistance, points 7.1
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0 to 0.0010
0 to 0.0060
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0
0.5 to 1.2
Gold (Au), % 91 to 93
0
Iron (Fe), % 0
0 to 0.075
Lead (Pb), % 0 to 0.0020
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Nickel (Ni), % 0
0 to 0.020
Palladium (Pd), % 7.0 to 9.0
0
Phosphorus (P), % 0 to 0.0020
0
Silicon (Si), % 0
0 to 0.060
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
87.1 to 89