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R30016 Cobalt vs. C87200 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C87200 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C87200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 8.4
30
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1010
380
Tensile Strength: Yield (Proof), MPa 580
170

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1360
970
Melting Onset (Solidus), °C 1270
860
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
6.3

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.6
Embodied Carbon, kg CO2/kg material 7.7
2.7
Embodied Energy, MJ/kg 110
44
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
93
Resilience: Unit (Modulus of Resilience), kJ/m3 770
130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 33
12
Strength to Weight: Bending, points 26
14
Thermal Diffusivity, mm2/s 3.9
8.0
Thermal Shock Resistance, points 24
14

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
89 to 99
Iron (Fe), % 0 to 3.0
0 to 2.5
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0.5 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0.2 to 2.0
1.0 to 5.0
Tin (Sn), % 0
0 to 1.0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 5.0