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EN 2.4964 Cobalt vs. 4147 Aluminum

EN 2.4964 cobalt belongs to the cobalt alloys classification, while 4147 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 4147 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
72
Elongation at Break, % 40
3.3
Fatigue Strength, MPa 220
42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
27
Tensile Strength: Ultimate (UTS), MPa 960
110
Tensile Strength: Yield (Proof), MPa 390
59

Thermal Properties

Latent Heat of Fusion, J/g 290
570
Melting Completion (Liquidus), °C 1630
580
Melting Onset (Solidus), °C 1550
560
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
33
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
120

Otherwise Unclassified Properties

Density, g/cm3 9.6
2.5
Embodied Carbon, kg CO2/kg material 9.8
7.7
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 450
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 340
24
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 21
55
Strength to Weight: Axial, points 28
12
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.9
58
Thermal Shock Resistance, points 25
5.2

Alloy Composition

Aluminum (Al), % 0
85 to 88.9
Beryllium (Be), % 0
0 to 0.00030
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
0 to 0.8
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
11 to 13
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15