AWS BAg-24 vs. AZ91B Magnesium
AWS BAg-24 belongs to the otherwise unclassified metals classification, while AZ91B magnesium belongs to the magnesium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (17, 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-24 and the bottom bar is AZ91B magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 87 | |
46 |
Poisson's Ratio | 0.33 | |
0.29 |
Shear Modulus, GPa | 33 | |
18 |
Tensile Strength: Ultimate (UTS), MPa | 150 | |
240 |
Thermal Properties
Latent Heat of Fusion, J/g | 130 | |
360 |
Melting Completion (Liquidus), °C | 730 | |
600 |
Melting Onset (Solidus), °C | 660 | |
470 |
Specific Heat Capacity, J/kg-K | 310 | |
990 |
Thermal Expansion, µm/m-K | 21 | |
26 |
Otherwise Unclassified Properties
Density, g/cm3 | 9.0 | |
1.7 |
Embodied Carbon, kg CO2/kg material | 49 | |
22 |
Embodied Energy, MJ/kg | 770 | |
160 |
Common Calculations
Stiffness to Weight: Axial, points | 5.3 | |
15 |
Stiffness to Weight: Bending, points | 16 | |
69 |
Strength to Weight: Axial, points | 4.6 | |
38 |
Strength to Weight: Bending, points | 6.9 | |
49 |
Thermal Shock Resistance, points | 5.9 | |
14 |
Alloy Composition
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Aluminum (Al), % | 0 | |
8.3 to 9.7 |
Copper (Cu), % | 19 to 21 | |
0 to 0.35 |
Magnesium (Mg), % | 0 | |
87.9 to 91.2 |
Manganese (Mn), % | 0 | |
0.13 to 0.5 |
Nickel (Ni), % | 1.5 to 2.5 | |
0 to 0.030 |
Silicon (Si), % | 0 | |
0 to 0.5 |
Silver (Ag), % | 49 to 51 | |
0 |
Zinc (Zn), % | 26 to 30 | |
0.35 to 1.0 |
Residuals, % | 0 to 0.15 | |
0 |