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R30001 Cobalt vs. ZC63A Magnesium

R30001 cobalt belongs to the cobalt alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 R30001 cobalt and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
48
Elongation at Break, % 1.0
3.3
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 86
19
Tensile Strength: Ultimate (UTS), MPa 620
220

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Melting Completion (Liquidus), °C 1530
550
Melting Onset (Solidus), °C 1260
470
Specific Heat Capacity, J/kg-K 430
950
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 11
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
32
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
140

Otherwise Unclassified Properties

Density, g/cm3 9.0
2.1
Embodied Carbon, kg CO2/kg material 8.9
22
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 460
920

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
58
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 18
38
Thermal Diffusivity, mm2/s 3.7
58
Thermal Shock Resistance, points 19
12

Alloy Composition


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Carbon (C), % 2.0 to 3.0
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 0 to 3.0
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.2
Tungsten (W), % 11 to 13
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3