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C65100 Bronze vs. R30016 Cobalt

C65100 bronze belongs to the copper alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C65100 bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 2.4 to 50
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 280 to 560
1010
Tensile Strength: Yield (Proof), MPa 95 to 440
580

Thermal Properties

Latent Heat of Fusion, J/g 230
320
Melting Completion (Liquidus), °C 1060
1360
Melting Onset (Solidus), °C 1030
1270
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 57
15
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 2.6
7.7
Embodied Energy, MJ/kg 41
110
Embodied Water, L/kg 300
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 110
72
Resilience: Unit (Modulus of Resilience), kJ/m3 39 to 820
770
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.7 to 18
33
Strength to Weight: Bending, points 11 to 17
26
Thermal Diffusivity, mm2/s 16
3.9
Thermal Shock Resistance, points 9.5 to 19
24

Alloy Composition

Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 94.5 to 99.2
0
Iron (Fe), % 0 to 0.8
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.7
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0.8 to 2.0
0.2 to 2.0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0