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AWS BVAg-31 vs. Zamak 7

AWS BVAg-31 belongs to the otherwise unclassified metals classification, while Zamak 7 belongs to the zinc alloys. There are 15 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 AWS BVAg-31 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
86
Poisson's Ratio 0.36
0.25
Shear Modulus, GPa 33
33
Tensile Strength: Ultimate (UTS), MPa 180
280

Thermal Properties

Latent Heat of Fusion, J/g 150
120
Melting Completion (Liquidus), °C 850
390
Melting Onset (Solidus), °C 820
380
Specific Heat Capacity, J/kg-K 280
410
Thermal Expansion, µm/m-K 18
27

Otherwise Unclassified Properties

Density, g/cm3 10
6.4

Common Calculations

Stiffness to Weight: Axial, points 4.9
7.5
Stiffness to Weight: Bending, points 15
23
Strength to Weight: Axial, points 4.9
12
Strength to Weight: Bending, points 7.0
15
Thermal Shock Resistance, points 7.8
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0 to 0.0010
0 to 0.0020
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 31 to 33
0 to 0.25
Iron (Fe), % 0
0 to 0.075
Lead (Pb), % 0 to 0.0020
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0
0.0050 to 0.020
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 57 to 59
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0 to 0.0010
95.3 to 96.5