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R30008 Cobalt vs. 1080A Aluminum

R30008 cobalt belongs to the cobalt alloys classification, while 1080A aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 R30008 cobalt and the bottom bar is 1080A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 1.1 to 73
2.3 to 34
Fatigue Strength, MPa 320 to 530
18 to 50
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 83
26
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
74 to 140
Tensile Strength: Yield (Proof), MPa 500 to 1080
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 320
400
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1330
640
Specific Heat Capacity, J/kg-K 450
900
Thermal Expansion, µm/m-K 13
23

Otherwise Unclassified Properties

Base Metal Price, % relative 95
9.5
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.3
Embodied Energy, MJ/kg 110
160
Embodied Water, L/kg 400
1200

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 2720
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 31 to 56
7.6 to 15
Strength to Weight: Bending, points 25 to 37
14 to 22
Thermal Shock Resistance, points 25 to 44
3.3 to 6.4

Alloy Composition

Aluminum (Al), % 0
99.8 to 100
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 18.5 to 21.5
0
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 7.6 to 20
0 to 0.15
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 1.0 to 2.0
0 to 0.020
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 15 to 18
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 1.2
0 to 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.060

Comparable Variants