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C87200 Bronze vs. R30016 Cobalt

C87200 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 (9, in this case) are not shown.

For each property being compared, the top bar is C87200 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, % 30
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 380
1010
Tensile Strength: Yield (Proof), MPa 170
580

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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