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R30006 Cobalt vs. 515.0 Aluminum

R30006 cobalt belongs to the cobalt alloys classification, while 515.0 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, 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 R30006 cobalt and the bottom bar is 515.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
70
Elongation at Break, % 1.0
10
Fatigue Strength, MPa 260
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
26
Tensile Strength: Ultimate (UTS), MPa 900
280

Thermal Properties

Latent Heat of Fusion, J/g 320
470
Melting Completion (Liquidus), °C 1400
620
Melting Onset (Solidus), °C 1290
620
Specific Heat Capacity, J/kg-K 450
900
Thermal Expansion, µm/m-K 11
23

Otherwise Unclassified Properties

Density, g/cm3 8.6
2.6
Embodied Carbon, kg CO2/kg material 7.8
8.4
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 500
1120

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
52
Strength to Weight: Axial, points 29
30
Strength to Weight: Bending, points 24
36
Thermal Shock Resistance, points 26
13

Alloy Composition


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Aluminum (Al), % 0
93.6 to 96.6
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.3
Magnesium (Mg), % 0
2.5 to 4.0
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0 to 2.0
0.5 to 10
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15