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AWS BAg-13 vs. ZK51A Magnesium

AWS BAg-13 belongs to the otherwise unclassified metals classification, while ZK51A magnesium belongs to the magnesium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, 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 BAg-13 and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 91
45
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 34
18
Tensile Strength: Ultimate (UTS), MPa 180
240

Thermal Properties

Latent Heat of Fusion, J/g 150
340
Melting Completion (Liquidus), °C 860
640
Melting Onset (Solidus), °C 720
550
Specific Heat Capacity, J/kg-K 310
970
Thermal Expansion, µm/m-K 19
26

Otherwise Unclassified Properties

Density, g/cm3 9.7
1.8
Embodied Carbon, kg CO2/kg material 52
24
Embodied Energy, MJ/kg 820
160

Common Calculations

Stiffness to Weight: Axial, points 5.2
14
Stiffness to Weight: Bending, points 16
64
Strength to Weight: Axial, points 5.2
36
Strength to Weight: Bending, points 7.3
47
Thermal Shock Resistance, points 7.5
15

Alloy Composition

Copper (Cu), % 37.4 to 42.5
0 to 0.1
Magnesium (Mg), % 0
93.1 to 95.9
Nickel (Ni), % 0.5 to 1.5
0 to 0.010
Silver (Ag), % 53 to 55
0
Zinc (Zn), % 4.0 to 6.0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3