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R30605 Cobalt vs. C52400 Bronze

R30605 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 (7, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is C52400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
41
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
450 to 880

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1410
1000
Melting Onset (Solidus), °C 1330
840
Specific Heat Capacity, J/kg-K 410
370
Thermal Conductivity, W/m-K 9.6
50
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
11

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.8
Embodied Carbon, kg CO2/kg material 9.8
3.6
Embodied Energy, MJ/kg 140
58
Embodied Water, L/kg 450
390

Common Calculations

Stiffness to Weight: Axial, points 12
6.9
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 33 to 55
14 to 28
Strength to Weight: Bending, points 25 to 36
15 to 23
Thermal Diffusivity, mm2/s 2.5
15
Thermal Shock Resistance, points 31 to 52
17 to 32

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
87.8 to 91
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0.030 to 0.35
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
9.0 to 11
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5