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C95300 Bronze vs. R30016 Cobalt

C95300 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 C95300 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, % 14 to 25
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 42
85
Tensile Strength: Ultimate (UTS), MPa 520 to 610
1010
Tensile Strength: Yield (Proof), MPa 190 to 310
580

Thermal Properties

Latent Heat of Fusion, J/g 230
320
Melting Completion (Liquidus), °C 1050
1360
Melting Onset (Solidus), °C 1040
1270
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 63
15
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 14
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 3.1
7.7
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 390
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 100
72
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 420
770
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 17 to 21
33
Strength to Weight: Bending, points 17 to 19
26
Thermal Diffusivity, mm2/s 17
3.9
Thermal Shock Resistance, points 19 to 22
24

Alloy Composition

Aluminum (Al), % 9.0 to 11
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), % 86.5 to 90.2
0
Iron (Fe), % 0.8 to 1.5
0 to 3.0
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
Tungsten (W), % 0
3.5 to 5.5
Residuals, % 0 to 1.0
0