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A380.0 Aluminum vs. R30012 Cobalt

A380.0 aluminum belongs to the aluminum alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 A380.0 aluminum and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
220
Elongation at Break, % 3.3
1.0
Fatigue Strength, MPa 140
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
86
Tensile Strength: Ultimate (UTS), MPa 290
830
Tensile Strength: Yield (Proof), MPa 160
650

Thermal Properties

Latent Heat of Fusion, J/g 510
320
Melting Completion (Liquidus), °C 590
1470
Melting Onset (Solidus), °C 550
1280
Specific Heat Capacity, J/kg-K 870
440
Thermal Conductivity, W/m-K 96
15
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 78
1.8

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.8
Embodied Carbon, kg CO2/kg material 7.5
8.3
Embodied Energy, MJ/kg 140
120
Embodied Water, L/kg 1040
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 180
960
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
23
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 34
22
Thermal Diffusivity, mm2/s 38
3.8
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
0 to 3.0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.5
0 to 3.0
Silicon (Si), % 7.5 to 9.5
0 to 2.0
Tin (Sn), % 0 to 0.35
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0