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364.0 Aluminum vs. R31537 Cobalt

364.0 aluminum belongs to the aluminum alloys classification, while R31537 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 364.0 aluminum and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
220
Elongation at Break, % 7.5
14 to 23
Fatigue Strength, MPa 120
310 to 480
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
87
Tensile Strength: Ultimate (UTS), MPa 300
1000 to 1340
Tensile Strength: Yield (Proof), MPa 160
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 520
320
Melting Completion (Liquidus), °C 600
1360
Melting Onset (Solidus), °C 560
1290
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 120
13
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.1

Otherwise Unclassified Properties

Density, g/cm3 2.6
8.4
Embodied Carbon, kg CO2/kg material 8.0
8.1
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1080
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
780 to 1990
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 31
33 to 44
Strength to Weight: Bending, points 38
26 to 32
Thermal Diffusivity, mm2/s 51
3.4
Thermal Shock Resistance, points 14
24 to 32

Alloy Composition

Aluminum (Al), % 87.2 to 92
0
Beryllium (Be), % 0.020 to 0.040
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0.25 to 0.5
26 to 30
Cobalt (Co), % 0
58.9 to 69
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 1.5
0 to 0.75
Magnesium (Mg), % 0.2 to 0.4
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 0.15
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0