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R30016 Cobalt vs. C63020 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C63020 bronze belongs to the copper alloys. There are 24 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 R30016 cobalt and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 8.4
6.8
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 85
44
Tensile Strength: Ultimate (UTS), MPa 1010
1020
Tensile Strength: Yield (Proof), MPa 580
740

Thermal Properties

Latent Heat of Fusion, J/g 320
230
Melting Completion (Liquidus), °C 1360
1070
Melting Onset (Solidus), °C 1270
1020
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 14
18

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 7.7
3.6
Embodied Energy, MJ/kg 110
58
Embodied Water, L/kg 500
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
63
Resilience: Unit (Modulus of Resilience), kJ/m3 770
2320
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 33
34
Strength to Weight: Bending, points 26
27
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 24
35

Alloy Composition

Aluminum (Al), % 0
10 to 11
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0 to 0.050
Cobalt (Co), % 49.6 to 66.9
0 to 0.2
Copper (Cu), % 0
74.7 to 81.8
Iron (Fe), % 0 to 3.0
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.5 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
4.2 to 6.0
Silicon (Si), % 0.2 to 2.0
0
Tin (Sn), % 0
0 to 0.25
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.5