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C83800 Bronze vs. R30016 Cobalt

C83800 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 (8, in this case) are not shown.

For each property being compared, the top bar is C83800 bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 20
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 39
85
Tensile Strength: Ultimate (UTS), MPa 230
1010
Tensile Strength: Yield (Proof), MPa 110
580

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 1000
1360
Melting Onset (Solidus), °C 840
1270
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 72
15
Thermal Expansion, µm/m-K 19
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 15
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 2.9
7.7
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 340
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
72
Resilience: Unit (Modulus of Resilience), kJ/m3 53
770
Stiffness to Weight: Axial, points 6.6
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 7.4
33
Strength to Weight: Bending, points 9.6
26
Thermal Diffusivity, mm2/s 22
3.9
Thermal Shock Resistance, points 8.6
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
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), % 82 to 83.8
0
Iron (Fe), % 0 to 0.3
0 to 3.0
Lead (Pb), % 5.0 to 7.0
0
Manganese (Mn), % 0
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 1.0
0 to 3.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0.2 to 2.0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 3.3 to 4.2
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 5.0 to 8.0
0
Residuals, % 0 to 0.7
0