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R31537 Cobalt vs. C86100 Bronze

R31537 cobalt belongs to the cobalt alloys classification, while C86100 bronze belongs to the copper alloys. There are 26 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 R31537 cobalt and the bottom bar is C86100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 14 to 23
20
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 87
43
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
660
Tensile Strength: Yield (Proof), MPa 590 to 940
350

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1360
940
Melting Onset (Solidus), °C 1290
900
Specific Heat Capacity, J/kg-K 450
420
Thermal Conductivity, W/m-K 13
35
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
9.0

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.9
Embodied Energy, MJ/kg 110
49
Embodied Water, L/kg 530
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
530
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 33 to 44
23
Strength to Weight: Bending, points 26 to 32
21
Thermal Diffusivity, mm2/s 3.4
10
Thermal Shock Resistance, points 24 to 32
21

Alloy Composition

Aluminum (Al), % 0
4.5 to 5.5
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
66 to 68
Iron (Fe), % 0 to 0.75
2.0 to 4.0
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
2.5 to 5.0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0
17.3 to 25