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R31539 Cobalt vs. C52400 Bronze

R31539 cobalt belongs to the cobalt alloys classification, while C52400 bronze belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is C52400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
450 to 880

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1360
1000
Melting Onset (Solidus), °C 1290
840
Specific Heat Capacity, J/kg-K 450
370
Thermal Conductivity, W/m-K 13
50
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
11

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 110
58
Embodied Water, L/kg 530
390

Common Calculations

Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
14 to 28
Strength to Weight: Bending, points 27 to 32
15 to 23
Thermal Diffusivity, mm2/s 3.5
15
Thermal Shock Resistance, points 24 to 32
17 to 32

Alloy Composition


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Aluminum (Al), % 0.3 to 1.0
0
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
87.8 to 91
Iron (Fe), % 0 to 0.75
0 to 0.1
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0.030 to 0.35
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0
9.0 to 11
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5