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R30006 Cobalt vs. EN AC-43400 Aluminum

R30006 cobalt belongs to the cobalt alloys classification, while EN AC-43400 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 EN AC-43400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
72
Elongation at Break, % 1.0
1.1
Fatigue Strength, MPa 260
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
27
Tensile Strength: Ultimate (UTS), MPa 900
270
Tensile Strength: Yield (Proof), MPa 540
160

Thermal Properties

Latent Heat of Fusion, J/g 320
540
Melting Completion (Liquidus), °C 1400
600
Melting Onset (Solidus), °C 1290
590
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
32
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
110

Otherwise Unclassified Properties

Density, g/cm3 8.6
2.6
Embodied Carbon, kg CO2/kg material 7.8
7.8
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 500
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 670
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
54
Strength to Weight: Axial, points 29
29
Strength to Weight: Bending, points 24
36
Thermal Diffusivity, mm2/s 3.9
59
Thermal Shock Resistance, points 26
12

Alloy Composition


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Aluminum (Al), % 0
86 to 90.8
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 0.1
Iron (Fe), % 0 to 3.0
0 to 1.0
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0
0 to 0.55
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.15
Silicon (Si), % 0 to 2.0
9.0 to 11
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15