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ISO-WD43150 Magnesium vs. AWS BCo-1

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while AWS BCo-1 belongs to the cobalt alloys. There are 18 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 ISO-WD43150 magnesium and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
78
Tensile Strength: Ultimate (UTS), MPa 250
700

Thermal Properties

Latent Heat of Fusion, J/g 350
420
Melting Completion (Liquidus), °C 610
1150
Melting Onset (Solidus), °C 590
1120
Specific Heat Capacity, J/kg-K 990
480
Thermal Expansion, µm/m-K 27
12

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 24
8.0
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 970
430

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 41
24
Strength to Weight: Bending, points 52
22
Thermal Shock Resistance, points 14
21

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0
0 to 1.0
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
16 to 18
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.1
7.5 to 8.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.3
0 to 0.5