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EN AC-46300 Aluminum vs. R30016 Cobalt

EN AC-46300 aluminum belongs to the aluminum alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 EN AC-46300 aluminum and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
220
Elongation at Break, % 1.1
8.4
Fatigue Strength, MPa 79
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
85
Tensile Strength: Ultimate (UTS), MPa 200
1010
Tensile Strength: Yield (Proof), MPa 110
580

Thermal Properties

Latent Heat of Fusion, J/g 490
320
Melting Completion (Liquidus), °C 630
1360
Melting Onset (Solidus), °C 530
1270
Specific Heat Capacity, J/kg-K 880
450
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 22
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 84
2.0

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.5
Embodied Carbon, kg CO2/kg material 7.7
7.7
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 1060
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
72
Resilience: Unit (Modulus of Resilience), kJ/m3 89
770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 27
26
Thermal Diffusivity, mm2/s 47
3.9
Thermal Shock Resistance, points 9.1
24

Alloy Composition

Aluminum (Al), % 84 to 90
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.8
0 to 3.0
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.2 to 0.65
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.3
0 to 3.0
Silicon (Si), % 6.5 to 8.0
0.2 to 2.0
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 0 to 0.65
0
Residuals, % 0 to 0.55
0