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R31537 Cobalt vs. 336.0 Aluminum

R31537 cobalt belongs to the cobalt alloys classification, while 336.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 R31537 cobalt and the bottom bar is 336.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
75
Elongation at Break, % 14 to 23
0.5
Fatigue Strength, MPa 310 to 480
80 to 93
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 87
28
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
250 to 320
Tensile Strength: Yield (Proof), MPa 590 to 940
190 to 300

Thermal Properties

Latent Heat of Fusion, J/g 320
570
Melting Completion (Liquidus), °C 1360
570
Melting Onset (Solidus), °C 1290
540
Specific Heat Capacity, J/kg-K 450
890
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
29
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
95

Otherwise Unclassified Properties

Density, g/cm3 8.4
2.8
Embodied Carbon, kg CO2/kg material 8.1
7.9
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 530
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
1.1 to 1.6
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
250 to 580
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 33 to 44
25 to 32
Strength to Weight: Bending, points 26 to 32
32 to 38
Thermal Diffusivity, mm2/s 3.4
48
Thermal Shock Resistance, points 24 to 32
12 to 16

Alloy Composition

Aluminum (Al), % 0
79.1 to 85.8
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 0 to 0.75
0 to 1.2
Magnesium (Mg), % 0
0.7 to 1.3
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
2.0 to 3.0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
11 to 13
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35