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R30016 Cobalt vs. 1100 Aluminum

R30016 cobalt belongs to the cobalt alloys classification, while 1100 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, 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 R30016 cobalt and the bottom bar is 1100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
69
Elongation at Break, % 8.4
1.1 to 32
Fatigue Strength, MPa 290
32 to 71
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
26
Tensile Strength: Ultimate (UTS), MPa 1010
86 to 170
Tensile Strength: Yield (Proof), MPa 580
28 to 150

Thermal Properties

Latent Heat of Fusion, J/g 320
400
Melting Completion (Liquidus), °C 1360
660
Melting Onset (Solidus), °C 1270
640
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 15
220
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
59
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
190

Otherwise Unclassified Properties

Density, g/cm3 8.5
2.7
Embodied Carbon, kg CO2/kg material 7.7
8.2
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 500
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
0.76 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 770
5.7 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 33
8.7 to 17
Strength to Weight: Bending, points 26
16 to 25
Thermal Diffusivity, mm2/s 3.9
90
Thermal Shock Resistance, points 24
3.7 to 7.4

Alloy Composition

Aluminum (Al), % 0
99 to 99.95
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
0.050 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.0
Manganese (Mn), % 0.5 to 2.0
0 to 0.050
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0.2 to 2.0
0 to 1.0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15