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R31537 Cobalt vs. C90400 Bronze

R31537 cobalt belongs to the cobalt alloys classification, while C90400 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 R31537 cobalt and the bottom bar is C90400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 14 to 23
24
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 87
41
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
310
Tensile Strength: Yield (Proof), MPa 590 to 940
180

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1360
990
Melting Onset (Solidus), °C 1290
850
Specific Heat Capacity, J/kg-K 450
370
Thermal Conductivity, W/m-K 13
75
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.7
Embodied Carbon, kg CO2/kg material 8.1
3.5
Embodied Energy, MJ/kg 110
56
Embodied Water, L/kg 530
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
65
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
150
Stiffness to Weight: Axial, points 15
7.0
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
10
Strength to Weight: Bending, points 26 to 32
12
Thermal Diffusivity, mm2/s 3.4
23
Thermal Shock Resistance, points 24 to 32
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.020
Boron (B), % 0
0 to 0.1
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 0 to 0.75
0 to 0.4
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0 to 1.0
0 to 0.010
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0
7.5 to 8.5
Zinc (Zn), % 0
1.0 to 5.0
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.7