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EN 2.4964 Cobalt vs. 7010 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 7010 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 2.4964 cobalt and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
70
Elongation at Break, % 40
3.9 to 6.8
Fatigue Strength, MPa 220
160 to 190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 86
26
Tensile Strength: Ultimate (UTS), MPa 960
520 to 590
Tensile Strength: Yield (Proof), MPa 390
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 290
380
Melting Completion (Liquidus), °C 1630
630
Melting Onset (Solidus), °C 1550
480
Specific Heat Capacity, J/kg-K 400
860
Thermal Conductivity, W/m-K 15
150
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
120

Otherwise Unclassified Properties

Density, g/cm3 9.6
3.0
Embodied Carbon, kg CO2/kg material 9.8
8.3
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 450
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1230 to 2130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
45
Strength to Weight: Axial, points 28
47 to 54
Strength to Weight: Bending, points 23
47 to 52
Thermal Diffusivity, mm2/s 3.9
58
Thermal Shock Resistance, points 25
22 to 26

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.6
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.050
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 0 to 3.0
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 9.0 to 11
0 to 0.050
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.12
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.060
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 0
0.1 to 0.16
Residuals, % 0
0 to 0.15