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1435 Aluminum vs. R31537 Cobalt

1435 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 1435 aluminum and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
220
Elongation at Break, % 4.1 to 32
14 to 23
Fatigue Strength, MPa 27 to 49
310 to 480
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
87
Tensile Strength: Ultimate (UTS), MPa 81 to 150
1000 to 1340
Tensile Strength: Yield (Proof), MPa 23 to 130
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Melting Completion (Liquidus), °C 650
1360
Melting Onset (Solidus), °C 640
1290
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 230
13
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.1

Otherwise Unclassified Properties

Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.2
8.1
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1190
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 20
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 110
780 to 1990
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 8.3 to 15
33 to 44
Strength to Weight: Bending, points 15 to 23
26 to 32
Thermal Diffusivity, mm2/s 93
3.4
Thermal Shock Resistance, points 3.6 to 6.7
24 to 32

Alloy Composition

Aluminum (Al), % 99.35 to 99.7
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.9 to 69
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0.3 to 0.5
0 to 0.75
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0 to 0.15
0 to 1.0
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.1
0

Comparable Variants