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EN-MC35110 Magnesium vs. R30001 Cobalt

EN-MC35110 magnesium belongs to the magnesium alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
220
Elongation at Break, % 3.1
1.0
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
86
Tensile Strength: Ultimate (UTS), MPa 230
620

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Melting Completion (Liquidus), °C 600
1530
Melting Onset (Solidus), °C 520
1260
Specific Heat Capacity, J/kg-K 970
430
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 130
1.8

Otherwise Unclassified Properties

Density, g/cm3 1.9
9.0
Embodied Carbon, kg CO2/kg material 24
8.9
Embodied Energy, MJ/kg 170
130
Embodied Water, L/kg 940
460

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
22
Strength to Weight: Axial, points 34
19
Strength to Weight: Bending, points 44
18
Thermal Diffusivity, mm2/s 61
3.7
Thermal Shock Resistance, points 14
19

Alloy Composition


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Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
0 to 3.0
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.0050
0 to 3.0
Silicon (Si), % 0 to 0.010
0 to 2.0
Tungsten (W), % 0
11 to 13
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
Residuals, % 0 to 0.010
0