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AWS BAg-3 vs. AZ63A Magnesium

AWS BAg-3 belongs to the otherwise unclassified metals classification, while AZ63A 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-3 and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 80
46
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 30
18
Tensile Strength: Ultimate (UTS), MPa 170
190 to 270

Thermal Properties

Latent Heat of Fusion, J/g 120
350
Melting Completion (Liquidus), °C 690
610
Melting Onset (Solidus), °C 630
450
Specific Heat Capacity, J/kg-K 290
980
Thermal Expansion, µm/m-K 22
26

Otherwise Unclassified Properties

Density, g/cm3 9.3
1.8
Embodied Carbon, kg CO2/kg material 49
22
Embodied Energy, MJ/kg 770
150

Common Calculations

Stiffness to Weight: Axial, points 4.8
14
Stiffness to Weight: Bending, points 15
66
Strength to Weight: Axial, points 5.1
29 to 41
Strength to Weight: Bending, points 7.3
40 to 51
Thermal Shock Resistance, points 6.9
11 to 16

Alloy Composition

Aluminum (Al), % 0
5.3 to 6.7
Cadmium (Cd), % 15 to 17
0
Copper (Cu), % 14.5 to 16.5
0 to 0.25
Magnesium (Mg), % 0
88.6 to 92.1
Manganese (Mn), % 0
0.15 to 0.35
Nickel (Ni), % 2.5 to 3.5
0 to 0.010
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 49 to 51
0
Zinc (Zn), % 13.5 to 17.5
2.5 to 3.5
Residuals, % 0
0 to 0.3