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AWS BAg-24 vs. ISO-WD21150 Magnesium

AWS BAg-24 belongs to the otherwise unclassified metals classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, 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 ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
45
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 33
17
Tensile Strength: Ultimate (UTS), MPa 150
240 to 290

Thermal Properties

Latent Heat of Fusion, J/g 130
350
Melting Completion (Liquidus), °C 730
600
Melting Onset (Solidus), °C 660
550
Specific Heat Capacity, J/kg-K 310
990
Thermal Expansion, µm/m-K 21
27

Otherwise Unclassified Properties

Density, g/cm3 9.0
1.7
Embodied Carbon, kg CO2/kg material 49
23
Embodied Energy, MJ/kg 770
160

Common Calculations

Stiffness to Weight: Axial, points 5.3
15
Stiffness to Weight: Bending, points 16
70
Strength to Weight: Axial, points 4.6
40 to 48
Strength to Weight: Bending, points 6.9
52 to 58
Thermal Shock Resistance, points 5.9
15 to 17

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.6
Copper (Cu), % 19 to 21
0 to 0.050
Iron (Fe), % 0
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 1.5 to 2.5
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 49 to 51
0
Zinc (Zn), % 26 to 30
0.5 to 1.5
Residuals, % 0
0 to 0.3