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R30016 Cobalt vs. C63800 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C63800 bronze belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C63800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 8.4
7.9 to 41
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1010
460 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1360
1030
Melting Onset (Solidus), °C 1270
1000
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
10

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.6
Embodied Carbon, kg CO2/kg material 7.7
2.8
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 500
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 33
15 to 33
Strength to Weight: Bending, points 26
15 to 26
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 24
17 to 36

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.1
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0.25 to 0.55
Copper (Cu), % 0
92.4 to 95.8
Iron (Fe), % 0 to 3.0
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 2.0
0 to 0.1
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0 to 0.2
Silicon (Si), % 0.2 to 2.0
1.5 to 2.1
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 0.5