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R30605 Cobalt vs. C87610 Bronze

R30605 cobalt belongs to the cobalt alloys classification, while C87610 bronze belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is C87610 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
22
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
43
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
350
Tensile Strength: Yield (Proof), MPa 470 to 1600
140

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1410
970
Melting Onset (Solidus), °C 1330
820
Specific Heat Capacity, J/kg-K 410
410
Thermal Conductivity, W/m-K 9.6
28
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
6.4

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.5
Embodied Carbon, kg CO2/kg material 9.8
2.6
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 450
300

Common Calculations

Stiffness to Weight: Axial, points 12
7.4
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 33 to 55
11
Strength to Weight: Bending, points 25 to 36
13
Thermal Diffusivity, mm2/s 2.5
8.1
Thermal Shock Resistance, points 31 to 52
13

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
90 to 94
Iron (Fe), % 0 to 3.0
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 1.0 to 2.0
0 to 0.25
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
3.0 to 5.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
3.0 to 5.0
Residuals, % 0
0 to 0.5