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C40500 Penny Bronze vs. R30016 Cobalt

C40500 penny bronze belongs to the copper alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 26 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 C40500 penny bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 3.0 to 49
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 270 to 540
1010
Tensile Strength: Yield (Proof), MPa 79 to 520
580

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 1060
1360
Melting Onset (Solidus), °C 1020
1270
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 42
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 2.7
7.7
Embodied Energy, MJ/kg 43
110
Embodied Water, L/kg 320
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 110
72
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 1200
770
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.5 to 17
33
Strength to Weight: Bending, points 10 to 17
26
Thermal Diffusivity, mm2/s 48
3.9
Thermal Shock Resistance, points 9.5 to 19
24

Alloy Composition

Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 94 to 96
0
Iron (Fe), % 0 to 0.050
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0.2 to 2.0
Tin (Sn), % 0.7 to 1.3
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 2.1 to 5.3
0
Residuals, % 0 to 0.5
0