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R30016 Cobalt vs. C65100 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C65100 bronze belongs to the copper 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 R30016 cobalt and the bottom bar is C65100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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
94.5 to 99.2
Iron (Fe), % 0 to 3.0
0 to 0.8
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 2.0
0 to 0.7
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0.2 to 2.0
0.8 to 2.0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5