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R30008 Cobalt vs. 1230A Aluminum

R30008 cobalt belongs to the cobalt alloys classification, while 1230A aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 1230A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 1.1 to 73
4.5 to 34
Fatigue Strength, MPa 320 to 530
35 to 74
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 83
26
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
89 to 170
Tensile Strength: Yield (Proof), MPa 500 to 1080
29 to 150

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
9.0
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 400
1190

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 2720
5.9 to 150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 31 to 56
9.1 to 17
Strength to Weight: Bending, points 25 to 37
16 to 25
Thermal Shock Resistance, points 25 to 44
4.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.3 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 0.1
Iron (Fe), % 7.6 to 20
0 to 0.7
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 1.0 to 2.0
0 to 0.050
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 0.7
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.050

Comparable Variants