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G-CoCr28 Cobalt vs. A380.0 Aluminum

G-CoCr28 cobalt belongs to the cobalt alloys classification, while A380.0 aluminum belongs to the aluminum 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 G-CoCr28 cobalt and the bottom bar is A380.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 6.7
3.3
Fatigue Strength, MPa 130
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 83
27
Tensile Strength: Ultimate (UTS), MPa 560
290
Tensile Strength: Yield (Proof), MPa 260
160

Thermal Properties

Latent Heat of Fusion, J/g 320
510
Maximum Temperature: Mechanical, °C 1200
170
Melting Completion (Liquidus), °C 1330
590
Melting Onset (Solidus), °C 1270
550
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 8.5
96
Thermal Expansion, µm/m-K 14
22

Otherwise Unclassified Properties

Base Metal Price, % relative 100
11
Density, g/cm3 8.1
2.9
Embodied Carbon, kg CO2/kg material 6.2
7.5
Embodied Energy, MJ/kg 84
140
Embodied Water, L/kg 440
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
8.3
Resilience: Unit (Modulus of Resilience), kJ/m3 160
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 24
48
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
34
Thermal Diffusivity, mm2/s 2.2
38
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 0
80.3 to 89.5
Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 9.7 to 24.5
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0 to 0.5
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
7.5 to 9.5
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5