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AWS BVAg-31 vs. ZA-12

AWS BVAg-31 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.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
83
Poisson's Ratio 0.36
0.26
Shear Modulus, GPa 33
33
Tensile Strength: Ultimate (UTS), MPa 180
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 150
120
Melting Completion (Liquidus), °C 850
430
Melting Onset (Solidus), °C 820
380
Specific Heat Capacity, J/kg-K 280
450
Thermal Expansion, µm/m-K 18
24

Otherwise Unclassified Properties

Density, g/cm3 10
6.0

Common Calculations

Stiffness to Weight: Axial, points 4.9
7.6
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 4.9
12 to 19
Strength to Weight: Bending, points 7.0
15 to 20
Thermal Shock Resistance, points 7.8
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), % 31 to 33
0.5 to 1.2
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), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Silicon (Si), % 0
0 to 0.060
Silver (Ag), % 57 to 59
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
87.1 to 89