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R31538 Cobalt vs. C95500 Bronze

R31538 cobalt belongs to the cobalt alloys classification, while C95500 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is C95500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 13 to 23
8.4 to 10
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
700 to 850
Tensile Strength: Yield (Proof), MPa 580 to 930
320 to 470

Thermal Properties

Latent Heat of Fusion, J/g 320
230
Melting Completion (Liquidus), °C 1360
1050
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 13
42
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.8

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
3.5
Embodied Energy, MJ/kg 110
57
Embodied Water, L/kg 530
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
58 to 61
Resilience: Unit (Modulus of Resilience), kJ/m3 750 to 1920
420 to 950
Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 34 to 45
24 to 29
Strength to Weight: Bending, points 27 to 32
21 to 24
Thermal Diffusivity, mm2/s 3.5
11
Thermal Shock Resistance, points 25 to 33
24 to 29

Alloy Composition


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Aluminum (Al), % 0
10 to 11.5
Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
78 to 84
Iron (Fe), % 0 to 0.75
3.0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 3.5
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
3.0 to 5.5
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Residuals, % 0
0 to 0.5