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EN-MC35110 Magnesium vs. AWS BCo-1

EN-MC35110 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 (14, 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 EN-MC35110 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 230
700

Thermal Properties

Latent Heat of Fusion, J/g 330
420
Melting Completion (Liquidus), °C 600
1150
Melting Onset (Solidus), °C 520
1120
Specific Heat Capacity, J/kg-K 970
480
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 24
8.0
Embodied Energy, MJ/kg 170
110
Embodied Water, L/kg 940
430

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 34
24
Strength to Weight: Bending, points 44
22
Thermal Shock Resistance, points 14
21

Alloy Composition

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 0.030
0
Iron (Fe), % 0 to 0.010
0 to 1.0
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
16 to 18
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.010
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
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0 to 0.050
Residuals, % 0 to 0.010
0 to 0.5