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R31538 Cobalt vs. C53800 Bronze

R31538 cobalt belongs to the cobalt alloys classification, while C53800 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is C53800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 13 to 23
2.3
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
830
Tensile Strength: Yield (Proof), MPa 580 to 930
660

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1360
980
Melting Onset (Solidus), °C 1290
800
Specific Heat Capacity, J/kg-K 450
360
Thermal Conductivity, W/m-K 13
61
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
9.3

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.1
3.9
Embodied Energy, MJ/kg 110
64
Embodied Water, L/kg 530
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
18
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
2020
Stiffness to Weight: Axial, points 15
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 34 to 45
26
Strength to Weight: Bending, points 27 to 32
22
Thermal Diffusivity, mm2/s 3.5
19
Thermal Shock Resistance, points 25 to 33
31

Alloy Composition

Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
85.1 to 86.5
Iron (Fe), % 0 to 0.75
0 to 0.030
Lead (Pb), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 1.0
0 to 0.060
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.030
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0
13.1 to 13.9
Zinc (Zn), % 0
0 to 0.12
Residuals, % 0
0 to 0.2