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G-CoCr28 Cobalt vs. 358.0 Aluminum

G-CoCr28 cobalt belongs to the cobalt alloys classification, while 358.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 358.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
71
Elongation at Break, % 6.7
3.5 to 6.0
Fatigue Strength, MPa 130
100 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 83
27
Tensile Strength: Ultimate (UTS), MPa 560
350 to 370
Tensile Strength: Yield (Proof), MPa 260
290 to 320

Thermal Properties

Latent Heat of Fusion, J/g 320
520
Maximum Temperature: Mechanical, °C 1200
170
Melting Completion (Liquidus), °C 1330
600
Melting Onset (Solidus), °C 1270
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 8.5
150
Thermal Expansion, µm/m-K 14
21

Otherwise Unclassified Properties

Base Metal Price, % relative 100
19
Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 6.2
8.7
Embodied Energy, MJ/kg 84
160
Embodied Water, L/kg 440
1090

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
12 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 160
590 to 710
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 19
37 to 39
Strength to Weight: Bending, points 19
42 to 44
Thermal Diffusivity, mm2/s 2.2
63
Thermal Shock Resistance, points 14
16 to 17

Alloy Composition

Aluminum (Al), % 0
89.1 to 91.8
Beryllium (Be), % 0
0.1 to 0.3
Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0 to 0.2
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 9.7 to 24.5
0 to 0.3
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 1.5
0 to 0.2
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
7.6 to 8.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15